Philadelphia Transport Tickets and SEPTA Key Guide

 

Understanding Philadelphia transport tickets is essential if you want to use SEPTA Regional Rail, the Airport Line, Metro, buses, trolleys and local transit without choosing the wrong fare product. Philadelphia’s public transport network is operated mainly by SEPTA, the Southeastern Pennsylvania Transportation Authority, and uses several payment options including SEPTA Key, contactless payment, Travel Wallet, Quick Trip tickets, passes, Regional Rail fares and cash where accepted.

For most visitors, the most important Philadelphia transport ticket is either a SEPTA Key card or a contactless payment method. SEPTA Key is a reusable reloadable card that can hold Travel Wallet value or passes, while contactless payment allows many visitors to tap a credit card, debit card or mobile wallet directly on supported services.

Philadelphia’s ticket system is easier once you understand five things: Airport Line and Regional Rail are not exactly the same as Metro or bus travel; Center City has several important rail stations; SEPTA Key is useful for repeated travel; contactless payment is often easiest for occasional rides; and Quick Trip tickets can be useful for one-off journeys but may not include the same transfer benefits as SEPTA Key or contactless payment.

If you are arriving in Philadelphia by plane, start with our full guide to getting from Philadelphia Airport to the city center. That page explains the SEPTA Airport Line from PHL, 30th Street Station, Suburban Station, Jefferson Station, taxis, Uber, Lyft, private transfers and the best arrival routes for Center City, Rittenhouse Square, Convention Center, Old City, Independence Hall and University City. This ticket guide focuses on how to pay once you start using Philadelphia public transport.

This complete guide explains Philadelphia transport tickets, including SEPTA Key, Travel Wallet, contactless payment, Quick Trip, Regional Rail fares, Airport Line tickets, Bus & Metro fares, trolleys, passes, children’s fares, senior fares, transfers, SEPTA Key kiosks, airport fare strategy and the best ticket choice for different types of visitors.

Quick answer: which Philadelphia transport ticket should tourists use?

  • Best for one or two local rides: contactless payment or SEPTA Key Travel Wallet
  • Best for Philadelphia Airport to Center City: SEPTA Airport Line fare using SEPTA Key, contactless payment, Quick Trip or onboard payment according to current rules
  • Best for several days: SEPTA Key with Travel Wallet value or a pass if you plan frequent rides
  • Best for Center City visitors: contactless payment or SEPTA Key, plus walking for short trips
  • Best for Regional Rail: SEPTA Key, contactless payment or correct Regional Rail ticket depending on trip
  • Best for buses and Metro: contactless payment or SEPTA Key
  • Best for families: check child fare rules; children under 12 can ride free with a fare-paying adult
  • Best for seniors: check Senior Fare Card eligibility and current SEPTA rules
  • Main mistake to avoid: assuming Airport Line, Regional Rail, Metro and bus all use the same fare logic

How Philadelphia transport tickets work

Philadelphia public transport is mainly operated by SEPTA. The network includes Regional Rail, the Airport Line, Metro lines, buses, trolleys and transit connections across Philadelphia and surrounding counties. For visitors, the most important systems are the Airport Line, Regional Rail, the Market-Frankford Line, the Broad Street Line, buses and trolleys.

The fare system is not one single flat fare for every mode. Bus and Metro rides have a standard local fare structure. Regional Rail fares vary depending on distance and ticket type. Airport Line trips are part of Regional Rail and should be treated differently from a local subway or bus ride.

The main payment tools are SEPTA Key, contactless payment, Quick Trip tickets, Travel Wallet and passes. Visitors can often use contactless payment for convenience, but SEPTA Key becomes useful if you plan repeated travel, want to load passes or prefer a dedicated transit card.

The practical rule is simple: choose the payment method based on the service you actually use. If you are going from Philadelphia Airport to Center City, think Airport Line / Regional Rail. If you are moving within Center City, University City, Old City, South Philadelphia or Fishtown, think Metro, bus, trolley, walking and local fares.

Philadelphia transport ticket options compared

Ticket or payment method Best for Main advantage Main limitation
SEPTA Key card Visitors using SEPTA several times, passes, Travel Wallet and repeated local trips Reusable, reloadable and works across SEPTA services Requires card purchase, loading value and understanding fare rules
Contactless payment Short-stay visitors taking occasional rides on supported services No transit card setup needed; tap bank card or mobile wallet You must use it correctly and check service compatibility
Travel Wallet Flexible pay-as-you-go travel with SEPTA Key Stored value for repeated travel without buying single tickets Requires enough balance and a SEPTA Key card
Quick Trip ticket One-off rides, visitors who do not want a card, selected Metro or Regional Rail trips Simple single-use option from kiosks or onboard on some Regional Rail trips Limited transfer benefits and not always valid on every mode
Regional Rail fare Airport Line, suburbs, Amtrak connections, 30th Street, Center City stations Best for airport and regional rail trips Fare logic differs from Bus & Metro travel
Daily pass Transit-heavy sightseeing days Can simplify several rides in one day Not worth it if you mostly walk Center City
Weekly or monthly pass Longer stays, commuters, students, interns and frequent riders Good value for repeated travel over several days or weeks Usually unnecessary for normal short tourist stays
Cash Backup use only where accepted Useful if you have no card or phone available Less convenient and may cost more or provide fewer benefits

SEPTA Key: the main Philadelphia transport card

The SEPTA Key card is Philadelphia’s reusable transit card. It can be loaded with Travel Wallet value or passes and can be used across SEPTA services according to current fare rules.

For visitors, SEPTA Key is most useful if you plan to use public transport repeatedly. If you are staying several days and expect to take the Airport Line, Metro, buses or trolleys more than a few times, SEPTA Key can make the trip easier.

For a very short stay, contactless payment may be simpler. If you only need one Airport Line ride into Center City and plan to walk around most attractions, you may not need to buy a physical SEPTA Key card.

SEPTA Key becomes more attractive if you want to load passes, use Travel Wallet, manage a transit balance or keep transport spending separate from your bank card.

SEPTA Key is best if:

  • you will use SEPTA several times during your stay,
  • you want to load Travel Wallet value,
  • you want to buy a daily, weekly or monthly pass,
  • you prefer a dedicated transit card,
  • you plan to combine Regional Rail, Metro, buses or trolleys,
  • you are staying outside the most walkable Center City core,
  • you want to avoid buying separate tickets for every ride.

How to use SEPTA Key

  1. Buy a SEPTA Key card from a fare kiosk, SEPTA sales location, participating retailer or other official source.
  2. Load Travel Wallet value or an eligible daily, weekly or monthly pass.
  3. Tap the SEPTA Key card at faregates, validators or readers according to the mode you are using.
  4. For Regional Rail, follow current SEPTA instructions for tapping, showing proof of fare or paying onboard.
  5. Use the same SEPTA Key card for transfers where transfer benefits apply.
  6. Keep enough value in the Travel Wallet if your ride is not covered by a pass.
  7. Register the card if you want balance protection and easier account management.

Do not tap your whole wallet on a validator. If your SEPTA Key card, contactless bank card and phone are near the reader at the same time, you may accidentally use the wrong payment method.

SEPTA Travel Wallet

Travel Wallet is stored value loaded onto a SEPTA Key card. It works like pay-as-you-go transit credit. Each time you take an eligible ride, the correct fare is deducted from your balance.

Travel Wallet is useful for visitors who will use public transport several times but do not ride enough to justify a pass. It gives flexibility without needing to buy a ticket for each trip.

For example, a visitor might use Travel Wallet for a bus to the Philadelphia Museum of Art, a Market-Frankford Line ride to Old City, a Broad Street Line trip to the sports complex and a local return journey. If you are taking only one or two rides, contactless payment may be just as easy.

Use Travel Wallet if:

  • you have a SEPTA Key card,
  • you want flexible pay-as-you-go travel,
  • you are not sure how many rides you will take,
  • you do not want to buy a pass,
  • you plan to use multiple SEPTA modes,
  • you want a single stored-value balance for transit.

Contactless payment in Philadelphia

Contactless payment is one of the easiest options for visitors in Philadelphia. SEPTA accepts contactless payment on supported services, including credit cards, debit cards and mobile wallets. This can be simpler than buying a SEPTA Key card for a short stay.

Contactless payment is especially useful if you only plan to take a few rides. Instead of buying and loading a SEPTA Key card, you can tap a compatible bank card or phone at the validator or faregate.

The main rule is to use the same card or device consistently. If you tap with a physical card for one ride and a phone wallet for another, the system may treat them as different payment methods for fare and transfer purposes.

Use contactless payment if:

  • you are visiting Philadelphia for a short stay,
  • you only need occasional rides,
  • you do not want to buy a SEPTA Key card,
  • you are comfortable tapping a credit card, debit card or mobile wallet,
  • you want a simple airport or local payment method where accepted,
  • you are not buying a SEPTA pass.

Quick Trip tickets

Quick Trip tickets can be useful for one-off rides if you do not want to buy a SEPTA Key card or use contactless payment. They are available for selected services and can be purchased from kiosks or onboard under certain Regional Rail conditions.

Quick Trips are simple but limited. They are generally designed for single rides and may not include the same transfer benefits as SEPTA Key or contactless payment. For repeated travel, SEPTA Key or contactless payment is usually better.

Visitors should also understand that Quick Trip rules differ by mode. A Quick Trip for Metro is not the same as broader Regional Rail fare planning. Always choose the correct product for the service you are using.

Use a Quick Trip if:

  • you only need one ride,
  • you do not want to buy a SEPTA Key card,
  • you prefer a kiosk ticket,
  • you are making a simple one-way trip,
  • you understand that transfer benefits may be limited.

Philadelphia Bus and Metro fares

SEPTA uses the term Bus & Metro for many local transit services. This includes buses and major rapid transit services such as the Market-Frankford Line and Broad Street Line. For most local city movement, Bus & Metro fares are the main fares visitors will encounter.

Bus and Metro are useful for trips around Center City, University City, Old City, South Philadelphia, Fishtown, Northern Liberties and neighborhoods not covered by Regional Rail. Many visitors use them after arriving from the airport by Regional Rail.

If you only move within Center City, walking may be enough. If your day includes multiple neighborhoods, Bus & Metro travel becomes more useful.

Use Bus & Metro for:

  • Market-Frankford Line trips,
  • Broad Street Line trips,
  • local buses,
  • Old City and Fishtown connections,
  • South Philadelphia sports venues,
  • University City and Center City movement,
  • neighborhood trips beyond easy walking distance.

Regional Rail fares in Philadelphia

Regional Rail is different from local Metro and bus travel. It is used for the Airport Line, suburbs, longer regional trips, commuter travel and rail connections through Center City. Fares vary depending on distance, zone, direction, time and payment method.

For tourists, the most important Regional Rail trip is usually the Airport Line from PHL to Center City. Other useful Regional Rail trips may include suburban visits, rail connections from 30th Street Station, or day trips outside central Philadelphia.

Do not assume that a local bus or Metro fare covers a Regional Rail journey. Regional Rail has its own fare structure and ticketing rules.

Use Regional Rail for:

  • Philadelphia Airport Line,
  • 30th Street Station connections,
  • suburban destinations,
  • commuter rail trips,
  • connections through Center City Regional Rail stations,
  • trips beyond local subway and bus corridors.

Airport Line fares and tickets

The SEPTA Airport Line is part of Regional Rail and connects PHL with Center City stations such as Penn Medicine, 30th Street, Suburban and Jefferson. This is the most important fare for arriving visitors.

Visitors can use SEPTA Key, contactless payment where accepted, Quick Trip tickets or onboard payment according to current SEPTA rules. The exact best option depends on whether you will continue using SEPTA after arrival.

If you only need one airport trip, a single fare method may be enough. If you will use Metro, buses or trolleys during your stay, SEPTA Key or contactless payment may make the whole trip easier.

Airport Line ticket strategy:

  • Use a simple single-ride option if you only need airport to hotel,
  • Use SEPTA Key if you plan repeated SEPTA trips,
  • Use contactless payment if you want a card-free visitor-friendly option,
  • Check whether onboard payment costs more than kiosk or pre-paid options,
  • Choose your Center City station before boarding.

SEPTA passes for visitors

SEPTA passes can be useful if you plan repeated rides. However, Philadelphia is very walkable in Center City, Old City and parts of University City, so many visitors need fewer transit rides than expected.

A pass is most useful if your hotel is outside the walkable core, if you plan to use SEPTA several times per day, or if your itinerary includes multiple neighborhoods such as University City, South Philadelphia, Old City, Fishtown, Northern Liberties and Center City in the same day.

Before buying a pass, estimate your ride count. If you only take the Airport Line plus one or two local rides, pay-as-you-go may be cheaper and simpler.

Use a pass if:

  • you will ride SEPTA several times per day,
  • you stay outside Center City,
  • you are visiting multiple neighborhoods,
  • you prefer one upfront travel product,
  • you are staying for several days and using transit often.

Children, seniors and reduced fares

Philadelphia has important fare rules for children, seniors and reduced-fare riders. Children under 12 can ride free when traveling with a fare-paying adult according to SEPTA fare information. Seniors over 65 may qualify for free rides with a valid Senior Fare Card. Riders with disabilities may be eligible for reduced fare programs.

Families should check SEPTA’s current child fare rules before buying tickets for every passenger. Reduced fares usually require proper eligibility cards, so visitors should not assume they qualify without documentation.

For most adult visitors, standard fares, contactless payment, SEPTA Key or passes are the main choices.

Best ticket for Philadelphia Airport to Center City

If you take the Airport Line from Philadelphia International Airport to Center City, choose a Regional Rail-appropriate fare. SEPTA Key, contactless payment, Quick Trip or onboard payment may be available depending on current rules and station setup.

If you will use public transport several more times during your trip, SEPTA Key or contactless payment is usually the most practical. If you only need the Airport Line once and then plan to walk, a one-time ticket option may be enough.

For full airport transfer planning, check our Philadelphia Airport to City Center guide, which explains Airport Line stations, taxis, Uber, Lyft, private transfer and hotel-area choices.

Best ticket for Center City

Center City Philadelphia is very walkable. If your hotel is near City Hall, Rittenhouse Square, Market Street, Convention Center or Old City, you may walk more than you expect.

For occasional rides, contactless payment or SEPTA Key Travel Wallet is usually enough. A pass may be useful only if you plan several Metro, bus or trolley rides in one day.

Best ticket for 30th Street Station and University City

30th Street Station is a major rail hub and is useful for Amtrak, Regional Rail, University City and connections to Drexel University and the University of Pennsylvania. If you arrive from the airport, the Airport Line is direct.

If you are staying in University City and using SEPTA daily, SEPTA Key or contactless payment can be convenient. If you are only taking a single Airport Line trip, a single Regional Rail fare may be enough.

Best ticket for Old City and Independence Hall

Old City and Independence Hall are often reached by Airport Line to Jefferson Station, then walking or local transit. Once you are in the historic district, walking is usually the best way to explore.

If your day includes only Old City, Independence Hall, Liberty Bell and nearby attractions, you may need very little local transit. Use pay-as-you-go rather than buying a pass automatically.

Best ticket for Rittenhouse Square

Rittenhouse Square is walkable from Suburban Station and many Center City hotels. If you arrive from PHL, take the Airport Line to Suburban Station, then walk or take a short taxi depending on luggage.

For local travel after arrival, contactless payment or Travel Wallet is usually enough unless you plan multiple rides throughout the day.

Best ticket for South Philadelphia sports venues

For Lincoln Financial Field, Citizens Bank Park and Wells Fargo Center, the Broad Street Line to NRG Station is the key rail route. If you are coming from the airport, you may need Airport Line to Center City, then Broad Street Line south.

On event days, public transport can be better than driving because parking and road congestion are heavy. Buy or load your fare before the event if possible, especially for the return trip.

Best ticket for Fishtown and Northern Liberties

Fishtown and Northern Liberties are usually reached by the Market-Frankford Line, bus, taxi or rideshare. If you are staying there and arriving from PHL, you may take Airport Line to Center City and transfer to the Market-Frankford Line.

For repeated neighborhood trips, SEPTA Key or contactless payment is useful. For a one-time evening visit, contactless payment may be easiest.

Best ticket for King of Prussia and suburbs

King of Prussia and many suburban destinations require more planning. SEPTA may be possible, but travel can involve Regional Rail, buses, transfers or longer travel times.

If your trip is suburban, evaluate whether public transport, rideshare, shuttle or rental car is better. A Center City pass may not solve a suburban itinerary.

Best ticket strategy by trip length

One day in Philadelphia

If you only have one day, use the Airport Line if arriving by plane, then walk Center City, Old City and historic sites. Use contactless payment or a single ticket for occasional rides. A pass is only useful if you plan several rides.

Two days in Philadelphia

For two days, pay-as-you-go is usually best unless your hotel is outside Center City. Use SEPTA Key Travel Wallet or contactless payment for flexible rides.

Three to four days in Philadelphia

For three or four days, SEPTA Key becomes more attractive if you use transit daily. Compare Travel Wallet with daily or multi-day passes depending on your expected ride count.

One week in Philadelphia

For one week, a weekly pass may be useful if you ride SEPTA frequently. If you stay in Center City and mostly walk, Travel Wallet or contactless payment may still be better.

Best ticket strategy by traveler type

First-time visitor

Use the Airport Line from PHL to the correct Center City station. Use contactless payment or SEPTA Key for occasional local rides. Do not buy a pass until you know how much you will actually ride.

Budget traveler

Use SEPTA instead of rideshare from the airport when practical. Walk Center City and Old City. Use contactless payment or Travel Wallet for local rides.

Family traveler

Check child fare rules because children under 12 may ride free with a fare-paying adult. With luggage, compare the Airport Line with taxi or rideshare for comfort.

Business traveler

Use the Airport Line for Center City, Convention Center, 30th Street and University City hotels. Use taxi or rideshare for suburban offices, tight schedules or late arrivals.

Convention visitor

Use Airport Line to Jefferson Station for the Pennsylvania Convention Center area. You may walk to many convention hotels. Use SEPTA Key or contactless payment for additional local trips.

Student or university visitor

Use Penn Medicine or 30th Street Station for University City. SEPTA Key can be useful if you will ride several times during a campus visit.

Where to buy SEPTA Key and tickets

SEPTA Key cards and fare products can be purchased at SEPTA kiosks, Center City stations, airport kiosks where available, sales offices, participating locations and online account tools depending on product and setup.

Philadelphia Airport and Center City stations are important places for visitors because they provide access to Airport Line fares, SEPTA Key options and Quick Trip ticket products.

If you arrive at PHL and only need the Airport Line, buy the correct airport rail ticket or use an accepted payment method. If you plan repeated rides, consider getting a SEPTA Key card early in your trip.

How to avoid Philadelphia fare mistakes

  • Do not confuse Regional Rail and Metro: Airport Line fares are Regional Rail fares, not ordinary local subway fares.
  • Choose the correct Center City station: 30th Street, Suburban and Jefferson serve different hotel areas.
  • Use the same payment method: this helps with transfer logic where applicable.
  • Do not buy a pass automatically: Center City and Old City are very walkable.
  • Check Quick Trip restrictions: Quick Trips may not work on every mode or include transfers.
  • Do not assume cash is best: contactless payment and SEPTA Key are usually easier.
  • Check Airport Line timing: late-night arrivals may require rideshare or taxi.
  • Plan suburban trips separately: King of Prussia, Manayunk and suburbs may need different fare products.

Common Philadelphia ticket mistakes

  • Buying a local fare for a Regional Rail trip: Airport Line and Regional Rail have separate fare logic.
  • Getting a SEPTA Key for one ride only: contactless payment or Quick Trip may be simpler for very short stays.
  • Buying a pass for a walking-heavy visit: many central attractions are best reached on foot.
  • Assuming Jefferson and Suburban are interchangeable: station choice affects walking distance with luggage.
  • Ignoring 30th Street Station: it is important for Amtrak, University City and airport rail connections.
  • Not checking transfer benefits: Quick Trips and cash may not include the same transfers as SEPTA Key or contactless.
  • Assuming all services accept the same payment: SEPTA modes can have different rules.
  • Not planning sports trips separately: South Philadelphia venues often require Broad Street Line or rideshare.
  • Using rideshare without comparing the Airport Line: the train can be cheaper and more predictable for Center City.
  • Not checking fare updates: SEPTA fare products and payment systems can change.

Final recommendation

For most visitors, the best Philadelphia transport ticket strategy is simple. Use the SEPTA Airport Line with the correct Regional Rail fare or accepted payment method when travelling from PHL to Center City. Use contactless payment for occasional Metro, bus or trolley rides. Use a SEPTA Key card with Travel Wallet if you plan repeated trips. Buy a pass only if your itinerary includes enough SEPTA rides to justify it.

If you are arriving at Philadelphia Airport, the Airport Line is usually the best-value public transport route to Center City. For airport transfer planning, check our Philadelphia Airport to City Center guide before deciding between Airport Line, taxi, Uber, Lyft or private transfer.

Once you are in the city, Philadelphia’s network becomes easier if you understand Center City stations, Market-Frankford Line, Broad Street Line, buses, trolleys and Regional Rail. Our How to Use Public Transport in Philadelphia guide explains how to combine SEPTA, walking, Center City, Old City, University City, South Philadelphia, Fishtown and local neighborhoods.

FAQ – Philadelphia Transport Tickets

What is the best transport ticket for tourists in Philadelphia?

For occasional rides, contactless payment is usually easiest. For repeated travel, SEPTA Key with Travel Wallet is often the best option. For airport travel, use the correct Airport Line / Regional Rail fare product.

What is a SEPTA Key card?

A SEPTA Key card is a reusable reloadable transit card used to pay for SEPTA services. It can hold Travel Wallet value or passes.

Is SEPTA Key worth it for tourists?

SEPTA Key is worth it if you plan to use public transport several times. If you only need one or two rides, contactless payment or a Quick Trip may be simpler.

Can I use contactless payment on SEPTA?

Yes. SEPTA accepts contactless payment on supported services, including credit cards, debit cards and mobile wallets.

Can I use contactless payment on the Airport Line?

SEPTA indicates contactless payment is accepted on Regional Rail, but visitors should always check current rules before travelling because fare policies can change.

What ticket do I need from Philadelphia Airport to Center City?

You need an Airport Line / Regional Rail fare product or accepted payment method. Options may include SEPTA Key, contactless payment, Quick Trip or onboard payment according to current rules.

How much is SEPTA Bus and Metro?

SEPTA lists Bus & Metro pay-per-ride fare at $2.90. Always check current SEPTA fare information before travel.

How much is SEPTA Regional Rail?

SEPTA Regional Rail fares vary by route, distance and fare product. SEPTA lists Regional Rail pay-per-ride fares in a range from $5.00 to $13.00.

What is Travel Wallet?

Travel Wallet is stored value loaded onto a SEPTA Key card. It lets riders pay as they go without buying a separate ticket for each trip.

What is a Quick Trip ticket?

A Quick Trip is a single-use ticket for selected SEPTA rides. It can be useful for one-off journeys but may not include the same transfer benefits as SEPTA Key or contactless payment.

Can I buy SEPTA tickets at Philadelphia Airport?

Yes. SEPTA fare kiosks and ticket options are available at Philadelphia Airport and Center City stations. Visitors can buy Airport Line tickets or SEPTA Key products depending on availability.

What ticket should I use for Center City Philadelphia?

For occasional local rides, use contactless payment or SEPTA Key Travel Wallet. If you plan several rides in one day, compare pass options.

What ticket should I use for 30th Street Station?

If you are arriving from PHL, use the Airport Line with a Regional Rail fare. For local transit after arrival, use contactless payment or SEPTA Key.

What ticket should I use for Rittenhouse Square?

Take the Airport Line to Suburban Station, then walk or use a short ride. For local transit, contactless payment or SEPTA Key Travel Wallet is usually enough.

What ticket should I use for the Convention Center?

Use the Airport Line to Jefferson Station if arriving from PHL. For additional city rides, use contactless payment, SEPTA Key or a pass if you ride frequently.

What ticket should I use for Old City and Independence Hall?

Use the Airport Line to Jefferson Station if arriving from PHL, then walk or use local transit. Once in Old City, walking is often easiest.

What ticket should I use for University City?

Use the Airport Line to Penn Medicine or 30th Street Station. SEPTA Key or contactless payment is useful if you continue using public transport.

What ticket should I use for South Philadelphia sports venues?

Use the Broad Street Line to NRG Station for sports venues. If arriving from the airport, take the Airport Line to Center City and transfer, or use rideshare if travelling with luggage.

Can children ride free on SEPTA?

Children under 12 can ride free when travelling with a fare-paying adult according to SEPTA fare information. Check current rules before travel.

Can seniors ride free on SEPTA?

Seniors over 65 may ride free with a valid Senior Fare Card. Visitors should check eligibility and documentation requirements before relying on senior fare rules.

Is a SEPTA pass worth it for tourists?

A pass is worth it only if you plan several rides. Many visitors walk around Center City and Old City, so pay-as-you-go may be cheaper.

What is the biggest Philadelphia ticket mistake?

The biggest mistake is assuming Airport Line, Regional Rail, Metro and bus all use the same fare rules. Choose your ticket based on the exact SEPTA service you are using.