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

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      Travellers and cabin class, 1 Adult, Economy
      Qatar Airways
      American Airlines

      Compare Philadelphia International to San Antonio International flight deals

      Find the cheapest month or even day of the year to fly to San Antonio International

      Book the best San Antonio International fare with no extra fees

      Flight deals from Philadelphia International to San Antonio International

      Looking for a cheap last-minute deal or the best return flight from Philadelphia International Airport to San Antonio International Airport? If you want to travel next month, return fares start from $349. Find the lowest prices on one-way and return tickets right here.
      San Antonio.$298 per passenger.Departing Sat, 14 Nov, returning Mon, 16 Nov.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Sat, 14 Nov, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Mon, 16 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $298, select.
      San Antonio.$349 per passenger.Departing Wed, 14 Oct, returning Thu, 15 Oct.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Wed, 14 Oct, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Thu, 15 Oct, arriving in Philadelphia International.Price includes taxes and charges.From $349, select.
      San Antonio.$372 per passenger.Departing Thu, 29 Oct, returning Sun, 1 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Thu, 29 Oct, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Sun, 1 Nov, arriving in Philadelphia International.Price includes taxes and charges.From $372, select.
      San Antonio.$396 per passenger.Departing Mon, 7 Dec, returning Fri, 11 Dec.Return flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Philadelphia International on Mon, 7 Dec, arriving in San Antonio International.Inbound indirect flight with Frontier Airlines, departs from San Antonio International on Fri, 11 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $396, select.
      San Antonio.$457 per passenger.Departing Fri, 30 Oct, returning Mon, 18 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Fri, 30 Oct, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Mon, 18 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $457, select.
      San Antonio.$469 per passenger.Departing Thu, 31 Dec, returning Tue, 5 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Thu, 31 Dec, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Tue, 5 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $469, select.
      San Antonio.$543 per passenger.Departing Fri, 15 Jan, returning Mon, 18 Jan.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Fri, 15 Jan, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Mon, 18 Jan, arriving in Philadelphia International.Price includes taxes and charges.From $543, select.
      San Antonio.$562 per passenger.Departing Tue, 24 Nov, returning Tue, 1 Dec.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Tue, 24 Nov, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Tue, 1 Dec, arriving in Philadelphia International.Price includes taxes and charges.From $562, select.
      San Antonio.$617 per passenger.Departing Fri, 5 Feb, returning Tue, 9 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Fri, 5 Feb, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Tue, 9 Feb, arriving in Philadelphia International.Price includes taxes and charges.From $617, select.
      San Antonio.$668 per passenger.Departing Sat, 13 Mar, returning Sat, 20 Mar.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Sat, 13 Mar, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Sat, 20 Mar, arriving in Philadelphia International.Price includes taxes and charges.From $668, select.
      San Antonio.$681 per passenger.Departing Wed, 27 Jan, returning Wed, 10 Feb.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Wed, 27 Jan, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Wed, 10 Feb, arriving in Philadelphia International.Price includes taxes and charges.From $681, select.
      San Antonio.$759 per passenger.Departing Wed, 7 Apr, returning Sun, 11 Apr.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Wed, 7 Apr, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Sun, 11 Apr, arriving in Philadelphia International.Price includes taxes and charges.From $759, select.
      San Antonio.$769 per passenger.Departing Mon, 10 May, returning Fri, 14 May.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Mon, 10 May, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Fri, 14 May, arriving in Philadelphia International.Price includes taxes and charges.From $769, select.
      San Antonio.$839 per passenger.Departing Fri, 11 Jun, returning Fri, 25 Jun.Return flight with United.Outbound indirect flight with United, departs from Philadelphia International on Fri, 11 Jun, arriving in San Antonio International.Inbound indirect flight with United, departs from San Antonio International on Fri, 25 Jun, arriving in Philadelphia International.Price includes taxes and charges.From $839, select.
      San Antonio.$890 per passenger.Departing Wed, 23 Sep, returning Sat, 26 Sep.Return flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Philadelphia International on Wed, 23 Sep, arriving in San Antonio International.Inbound indirect flight with Southwest Airlines, departs from San Antonio International on Sat, 26 Sep, arriving in Philadelphia International.Price includes taxes and charges.From $890, select.
      San Antonio.$935 per passenger.Departing Fri, 25 Jun, returning Fri, 9 Jul.Return flight with Delta.Outbound indirect flight with Delta, departs from Philadelphia International on Fri, 25 Jun, arriving in San Antonio International.Inbound indirect flight with Delta, departs from San Antonio International on Fri, 9 Jul, arriving in Philadelphia International.Price includes taxes and charges.From $935, select.
      How did we find these deals? The deals you see here are the lowest prices for flight tickets from Philadelphia International to San Antonio International found in the last 4 days, and are subject to change and availability.

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

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia International to San Antonio International flights are currently cheapest in November.
      Sep
      from $890
      Oct
      from $349
      Nov
      from $298
      Dec
      from $396
      Jan
      from $543
      Feb
      from $617
      Mar
      from $668
      Apr
      from $759
      May
      from $769
      Jun
      from $839
      Jul
      Find prices
      Aug
      Find prices

      Direct flights from Philadelphia International to San Antonio International

      American Airlines
      Qatar Airways

      Philadelphia International to San Antonio International: Alternative routes

      Compare routes from Philadelphia International to San Antonio below. You may find an airport to fly into that's cheaper, faster, or easier than San Antonio International.

      San Antonio International

      13km from central San Antonio
      ClosestCheapest
      from $298
      Search flights

      Philadelphia to San Antonio: Flight information

      The things to know before you go.
      Cheapest flight found$298
      Cheapest month to flyNovember
      Average flight time4 hrs, 1 min
      Most popular airlineQatar Airways
      Average flights per week21

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

      The best price we found for a return flight from Philadelphia International to San Antonio International is $298. 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.
      4 hours and 1 minute is the average flight time from Philadelphia International to San Antonio International.
      Qatar Airways and American Airlines fly direct from Philadelphia International to San Antonio International.
      As of September 2026, there are 21 flights per week flying from Philadelphia International to San Antonio International.
      The cheapest month to fly from Philadelphia International to San Antonio International is usually November.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Philadelphia International Airport to San Antonio International Airport on Saturday, 14 November 2026.
      Yes – the average flight time is 4 hours and 1 minute.
      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 San Antonio 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 San Antonio is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Southwest Airlines offers the cheapest flight tickets to San Antonio International.

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

      • The average duration of a direct flight from Philadelphia International Airport to San Antonio International Airport is 4 hours 5 minutes.

      • San Antonio's timezone is UTC-6, making San Antonio one hour behind Philadelphia.

      • You can choose from seven weekly Philadelphia International Airport to San Antonio International Airport flights. The 08:14 departure with American Airlines is the earliest available. American Airlines operates the last service of the day at 11:10.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Be at the airport on time to catch your PHL to SAT flight.

      • Be prepared for bigger queues in popular months such as August. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

      • Getting to San Antonio (and then discovering more of the United States!) is easy with American Airlines. This popular carrier offers direct flights from Philadelphia International Airport to San Antonio International Airport.

      • The airline that serves the most passengers on this route is American Airlines.

      • American Airlines is the most punctual carrier offering PHL to SAT flights.

      • We make it easy to book a flight with a stopover. To see your options for tickets from Philadelphia International Airport to San Antonio International Airport, uncheck 'Direct flights only.' Then, pick a flight with a stop long enough to explore your chosen city. Popular stopovers between PHL and SAT include:

        • Atlanta Hartsfield-Jackson Airport

        • Houston George Bush Intercntl. Airport

        • Nashville Airport

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

      • Currently, $185 is the cheapest price we've found for a one-way Philadelphia International Airport to San Antonio International Airport flight. The best price for a return ticket is $298. Remember that fares can change due to availability when booking.

      • To score cheap tickets from PHL to SAT, reserve your trip three months before your departure date.

      • August is the cheapest month for flights from Philadelphia International Airport to San Antonio International Airport. If you're looking to fly during a different time of year, the 'Whole month' tool will show you the lowest airfares across every month.

      • Getting your hands on cheap flights from PHL to SAT is easy with Price Alerts. All you need to do is create one of these automatic alerts and we'll get in touch when a lower fare pops up.

      • Choose your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Philadelphia International Airport to San Antonio International Airport.

      Handy information about Philadelphia International Airport (PHL)

      • PHL is located at 8500 Essington Ave.

      • 77% of flights leaving from Philadelphia International Airport arrive at their destination on schedule.

      • Central Philadelphia to Philadelphia International Airport is around 18 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're catching a taxi, ride-sharing or driving.

      • The journey on public transport typically takes 30 minutes.

      • Booked an early flight from Philadelphia International Airport to San Antonio International Airport? Avoid rushing to the airport (and get some extra shut-eye) by choosing one of these hotels near PHL:

      Arriving at San Antonio International Airport (SAT)

      Getting from San Antonio International Airport (SAT) to central San Antonio

      • SAT is located at 9800 Airport Boulevard.

      • San Antonio International Airport to the centre of San Antonio has a drive time of about 20 minutes. It's approximately 14 kilometres away.

      • When travelling by public transport, expect a journey time of about 50 minutes.

      When to fly to San Antonio International Airport (SAT)

      • It's time to choose your trip dates for your flight from Philadelphia International Airport to San Antonio International Airport. July is the most popular month to visit San Antonio. If you'd like a more laid-back vibe, go in March.

      • Book your flight from Philadelphia International Airport to San Antonio International Airport for August if you want to explore San Antonio during its warmest month. Expect temperatures of between 24ºC (75ºF) and 40ºC (104ºF).

      • January sees average temperatures of between 4ºC (39ºF) and 20ºC (68ºF). Look for cheap tickets from PHL to SAT sometime around then if you'd rather travel in cooler conditions.

      Explore more of the United States

      • San Antonio is easy to fall in love with, but there are so many other corners of the United States just waiting to be discovered. About 306 kilometres east of San Antonio, a trip to Houston will keep your itinerary packed. Check out popular attractions like The Museum of Fine Arts, Houston, Beck Building, Houston Museum of Natural Science and The Menil Collection.

      • Around 402 kilometres north-east of San Antonio, Dallas is another favourite stop in the United States. Get a taste of what this destination has to offer at Meyerson Symphony Centre, Winspear Opera House and Dallas Museum of Art.

      Plan smart, explore more

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      Plan the rest of your trip from Philadelphia to San Antonio

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.