Cheap Flights from San Antonio (SAT) to Philadelphia (PHL)

Compare San Antonio International to Philadelphia International flight deals

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Flight deals from San Antonio International to Philadelphia International

Looking for a cheap last-minute deal or the best return flight from San Antonio International to Philadelphia International? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from San Antonio International to Philadelphia International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Antonio International to Philadelphia International flights are currently cheapest in May.

Direct flights from San Antonio International to Philadelphia International

San Antonio to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found$261
Cheapest month to flyMarch
Average flight time3 hrs, 42 mins
Most popular airlineAmerican Airlines
Average flights per week22

Finding cheap flights from San Antonio International to Philadelphia International: Frequently asked questions

The best price we found for a return flight from San Antonio International to Philadelphia International is $261. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 42 minutes is the average flight time from San Antonio International to Philadelphia International.
American Airlines and Qatar Airways fly direct from San Antonio International to Philadelphia International.
As of February 2026, there are 22 flights per week flying from San Antonio International to Philadelphia International.
The cheapest month to fly from San Antonio International to Philadelphia International is usually March.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Antonio International Airport to Philadelphia International Airport on Wednesday, 25 March 2026.
Yes – the average flight time is 3 hours and 42 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Spirit Airlines offers the cheapest flight tickets to Philadelphia International.

Travelling from San Antonio International Airport (SAT) to Philadelphia International Airport (PHL): what you need to know

  • Around 3 hours 45 minutes is how long you can expect to be in the air on a direct flight from San Antonio International Airport to Philadelphia International Airport.

  • Philadelphia's timezone is UTC-4, making Philadelphia one hour ahead of San Antonio.

  • Flights from SAT to PHL start from 12:05 — the first with American Airlines. The last service of the day is at 14:04 with American Airlines. Overall, there are three weekly San Antonio International Airport to Philadelphia International Airport flights.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules worth sticking to. Get to the airport on time to board your SAT to PHL flight.

  • Be prepared for longer lines in popular months like July. Arriving up to four hours in advance for an international flight and two hours for domestic departures will give you ample time for security and boarding.

  • Getting to Philadelphia (and then seeing more of United States!) is a snap with American Airlines. This popular airline offers direct flights from San Antonio International Airport to Philadelphia International Airport.

  • American Airlines is the airline with the highest passenger demand for this route.

  • If you'd like to split up your journey, simply uncheck 'Direct flights only' when searching for your ticket from San Antonio International Airport to Philadelphia International Airport. These are the top stopovers between SAT and PHL:

    • Hartsfield-Jackson Atlanta International Airport

    • Nashville International Airport

    • Dallas/Fort Worth International Airport

How to find the cheapest flights from San Antonio International Airport (SAT) to Philadelphia International Airport (PHL)

  • Currently, $131 is the cheapest price we've found for a one-way San Antonio International Airport to Philadelphia International Airport flight. The best price for a return plane ticket is $261. Bear in mind that fares can change due to demand at the time of booking.

  • Book seven months before you want to fly. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure cheap tickets from SAT to PHL.

  • June is the cheapest month for flights from San Antonio International Airport to Philadelphia International Airport. If you need to travel at a different time of year, the 'Whole month' tool will show you the lowest airfares across every month.

  • Cut down on the time spent looking for cheap flights from SAT to PHL by setting up a Price Alert. You'll get an email or notification on the app when a lower fare becomes available.

  • Tailor your trip with filters. Select your ideal departure and arrival times, airlines and total journey duration. You can also sort the results by 'Cheapest,' 'Fastest' or 'Best' flights from San Antonio International Airport to Philadelphia International Airport.

Handy information about San Antonio International Airport (SAT)

  • SAT is located at 9800 Airport Boulevard.

  • San Antonio International Airport maintains a solid on-time record, reducing the likelihood of delays. Departures from SAT arrive at their destination as scheduled 83.17% of the time.

  • To get to San Antonio International Airport from central San Antonio, it'll take around 20 minutes if you're going by car. This depends on traffic though. It's approximately 19 kilometres from the airport to the city centre.

  • You can expect a journey time of about 1 hour 30 minutes when using public transport.

  • Have an early flight from San Antonio International Airport to Philadelphia International Airport? Avoid rushing to the terminal (and catch some extra z's) by choosing one of these stays near SAT:

Arriving at Philadelphia International Airport (PHL)

Getting from Philadelphia International Airport (PHL) to central Philadelphia

  • The address for PHL is Industrial Highway and Island Road.

  • From Philadelphia International Airport, Philadelphia is approximately 19 kilometres away. It takes around 15 minutes to reach the centre driving.

  • Getting there by public transport will take you around 45 minutes.

When to fly to Philadelphia International Airport (PHL)

  • The quietest month for a flight from San Antonio International Airport to Philadelphia International Airport is February, while August is the most popular. Pick the best time to go to Philadelphia based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Lock in your flight from San Antonio International Airport to Philadelphia International Airport for July if you'd like to go to Philadelphia during its warmest month. Expect temperatures of between 18ºC (64ºF) and 32ºC (90ºF).

  • January sees average temperatures of between -7ºC (19ºF) and 9ºC (48ºF). Look for cheap tickets from SAT to PHL around that time if you want to travel in cooler conditions.

Explore more of United States

  • You've visited Philadelphia, now it's time to explore other corners of United States. Journey about 129 kilometres north-east to New York to check off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, there's plenty to keep you on the go.

  • If you want to check out another great destination in United States, head for Boston, roughly 434 kilometres north-east of Philadelphia. Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum are key reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.