Which airport is the most popular layover for flights between San Antonio and Philadelphia?

Dallas (DFW) was the most common stop: 25% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from San Antonio to Philadelphia?

Flights connecting via St. Louis (STL) have the shortest average one-way travel time: 5h 10m.

What airlines fly to Philadelphia?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Philadelphia from San Antonio according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from San Antonio to Philadelphia?

St. Louis (STL) has the shortest average layover time for this route: 0h 50m.

Which layover airport offers the lowest fares from San Antonio to Philadelphia?

Flights via Washington, D.C. (IAD) offer the lowest average round-trip price of $218.

How many flights depart from San Antonio to Philadelphia on average per day?

The number of flights available between San Antonio and Philadelphia is 2 per day as of September 2026. The most frequent departure time is 7:00AM, with 100% of daily flights leaving at noon.

How many flights depart from San Antonio to Philadelphia on average per week?

As of September 2026, 14 flights take off from San Antonio and land in Philadelphia each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

What is the cheapest airline that flies from San Antonio to Philadelphia?

Southwest, Delta, and United Airlines are the most popular carriers operating from San Antonio to Philadelphia

When did momondo last update prices for flights from San Antonio Airport to Philadelphia Airport?

Prices for flights from San Antonio Airport to Philadelphia Airport refresh daily.

How many operators does momondo search for flights from San Antonio Airport to Philadelphia Airport?

As of September 2026, there are 5 operators available to choose from for flights from San Antonio Airport to Philadelphia Airport.

How old do you have to be to fly from San Antonio Airport to Philadelphia Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Philadelphia Airport.

What documentation or ID do you need to fly to Philadelphia Airport?

The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$104 Cheap Flights from San Antonio to Philadelphia in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to Philadelphia

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 11:43 amSAT San Antonio-PHL Philadelphia

3h 43mnonstop

6:17 pm - 9:36 pmPHL Philadelphia-SAT San Antonio

4h 19mnonstop

$247American Airlines

Tue, Oct 20 - Tue, Oct 27

7:00 am - 11:43 amSAT San Antonio-PHL Philadelphia

3h 43mnonstop

6:17 pm - 9:36 pmPHL Philadelphia-SAT San Antonio

4h 19mnonstop

$247American Airlines

Sat, Oct 17 - Sat, Oct 24

12:30 pm - 9:35 pmSAT San Antonio-PHL Philadelphia

8h 05m1 stop Nashville Intl

7:40 pm - 11:55 pmPHL Philadelphia-SAT San Antonio

5h 15m1 stop Lambert-St Louis

$247Southwest

Tue, Oct 20 - Thu, Oct 22

11:25 am - 9:50 pmSAT San Antonio-PHL Philadelphia

9h 25m2 stops New Orleans Louis Armstrong Lambert-St Louis

7:40 pm - 11:55 pmPHL Philadelphia-SAT San Antonio

5h 15m1 stop Lambert-St Louis

$252Southwest

Tue, Oct 20 - Thu, Oct 22

10:03 am - 11:11 pmSAT San Antonio-PHL Philadelphia

12h 08m2 stops Orlando Atlanta Hartsfield-Jackson

7:42 am - 8:45 amPHL Philadelphia-SAT San Antonio

26h 03m1 stop Raleigh-Durham

$254Multiple Airlines

Wed, Oct 21 - Sat, Nov 7

10:03 am - 7:21 amSAT San Antonio-PHL Philadelphia

20h 18m2 stops Orlando Atlanta Hartsfield-Jackson

7:25 pm - 8:45 amPHL Philadelphia-SAT San Antonio

14h 20m1 stop Raleigh-Durham

$254Multiple Airlines

Mon, Oct 26 - Sat, Nov 7

10:34 pm - 7:18 amSAT San Antonio-PHL Philadelphia

31h 44m1 stop Las Vegas Harry Reid Intl

5:50 am - 7:26 pmPHL Philadelphia-SAT San Antonio

14h 36m1 stop Denver Intl

$267Frontier

Fri, Oct 23 - Mon, Oct 26

10:48 am - 6:18 pmSAT San Antonio-PHL Philadelphia

6h 30m1 stop Atlanta Hartsfield-Jackson

6:00 am - 12:35 pmPHL Philadelphia-SAT San Antonio

7h 35m1 stop Atlanta Hartsfield-Jackson

$267Delta

Wed, Oct 21 - Wed, Nov 4

5:30 am - 1:21 pmSAT San Antonio-PHL Philadelphia

6h 51m1 stop Atlanta Hartsfield-Jackson

3:05 pm - 9:10 pmPHL Philadelphia-SAT San Antonio

7h 05m1 stop Minneapolis St Paul

$267Delta

Tue, Oct 27 - Tue, Nov 3

8:21 pm - 1:16 amSAT San Antonio-PHL Philadelphia

27h 55m1 stop Denver Intl

5:50 am - 7:26 pmPHL Philadelphia-SAT San Antonio

14h 36m1 stop Denver Intl

$275Frontier

Wed, Oct 14 - Tue, Oct 20

Cheap last minute flights

Enter your travel dates to find the best prices.

9:25 am - 11:29 pmSAT San Antonio-PHL Philadelphia

13h 04m1 stop Raleigh-Durham

5:45 pm - 7:25 pmPHL Philadelphia-SAT San Antonio

26h 40m2 stops Orlando Denver Intl

$418Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

10:03 am - 9:05 amSAT San Antonio-PHL Philadelphia

22h 02m1 stop Orlando

5:45 pm - 9:10 amPHL Philadelphia-SAT San Antonio

16h 25m1 stop Orlando

$448Frontier

Wed, Sep 30 - Sun, Oct 4

10:03 am - 9:05 amSAT San Antonio-PHL Philadelphia

22h 02m1 stop Orlando

5:45 pm - 9:10 amPHL Philadelphia-SAT San Antonio

16h 25m1 stop Orlando

$448Frontier

Wed, Sep 30 - Sun, Oct 4

12:38 pm - 1:35 pmSAT San Antonio-PHL Philadelphia

23h 57m2 stops Memphis Raleigh-Durham

9:30 am - 8:45 amPHL Philadelphia-SAT San Antonio

24h 15m1 stop Raleigh-Durham

$457Multiple Airlines

Mon, Sep 28 - Wed, Sep 30

5:30 am - 11:58 amSAT San Antonio-PHL Philadelphia

5h 28m1 stop Houston George Bush Intcntl

6:15 pm - 10:51 pmPHL Philadelphia-SAT San Antonio

5h 36m1 stop Houston George Bush Intcntl

$467United Airlines

Sun, Sep 27 - Tue, Sep 29

5:30 am - 11:58 amSAT San Antonio-PHL Philadelphia

5h 28m1 stop Houston George Bush Intcntl

3:08 pm - 10:51 pmPHL Philadelphia-SAT San Antonio

8h 43m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

$472United Airlines

Sun, Sep 27 - Tue, Sep 29

1:55 pm - 8:25 pmSAT San Antonio-PHL Philadelphia

5h 30m1 stop Atlanta Hartsfield-Jackson

9:35 am - 3:53 pmPHL Philadelphia-SAT San Antonio

7h 18m1 stop Detroit Metropolitan Wayne County

$507Delta

Fri, Oct 2 - Sun, Oct 4

6:35 am - 1:15 pmSAT San Antonio-PHL Philadelphia

5h 40m1 stop Atlanta Hartsfield-Jackson

5:20 am - 10:03 amPHL Philadelphia-SAT San Antonio

5h 43m1 stop Atlanta Hartsfield-Jackson

$537Delta

Thu, Oct 1 - Sun, Oct 4

3:35 pm - 9:50 pmSAT San Antonio-PHL Philadelphia

5h 15m1 stop Nashville Intl

7:00 am - 12:15 pmPHL Philadelphia-SAT San Antonio

6h 15m1 stop Orlando

$595Southwest

Wed, Sep 30 - Tue, Oct 6

7:10 am - 4:00 pmSAT San Antonio-PHL Philadelphia

7h 50m2 stops Lambert-St Louis Chicago Midway

6:25 am - 12:25 pmPHL Philadelphia-SAT San Antonio

7h 00m2 stops Lambert-St Louis Dallas Love Field

$605Southwest

Wed, Sep 30 - Tue, Oct 6

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Southwest flights from San Antonio to Philadelphia

Our best Southwest deals on San Antonio to Philadelphia flight tickets

Southwest

Oct 20

SAT12:30 pmSan Antonio

8h 05m

1 stop

PHL9:35 pmPhiladelphia

Oct 22

PHL7:40 pmPhiladelphia

5h 15m

1 stop

SAT11:55 pmSan Antonio

$247

Southwest

Oct 20

SAT11:25 amSan Antonio

9h 25m

2 stops

PHL9:50 pmPhiladelphia

Oct 22

PHL7:40 pmPhiladelphia

5h 15m

1 stop

SAT11:55 pmSan Antonio

$252

Southwest

Nov 3

SAT12:50 pmSan Antonio

8h 15m

2 stops

PHL10:05 pmPhiladelphia

Nov 5

PHL1:50 pmPhiladelphia

11h 35m

1 stop

SAT12:25 amSan Antonio

$258

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets

Frontier

Oct 14

SAT8:21 pmSan Antonio

27h 55m

1 stop

PHL1:16 amPhiladelphia

Oct 20

PHL5:50 amPhiladelphia

14h 36m

1 stop

SAT7:26 pmSan Antonio

$275

Frontier

Oct 26

SAT10:03 amSan Antonio

20h 18m

2 stops

PHL7:21 amPhiladelphia

Oct 27

PHL5:00 pmPhiladelphia

27h 25m

2 stops

SAT7:25 pmSan Antonio

$280

Frontier

Oct 26

SAT10:03 amSan Antonio

22h 27m

1 stop

PHL9:30 amPhiladelphia

Oct 29

PHL5:15 amPhiladelphia

29h 03m

1 stop

SAT9:18 amSan Antonio

$294

momondo Fare Finder

Use the filters below to find and compare flights from San Antonio to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Tue 10/20

7:00 am-11:43 am

Nonstop3h 43m

Philadelphia

Tue 10/27

6:17 pm-9:36 pm

Nonstop4h 19m

$247

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Sat 10/17

7:00 am-11:43 am

Nonstop3h 43m

Philadelphia

Sat 10/24

6:17 pm-9:36 pm

Nonstop4h 19m

$247

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Tue 10/20

12:30 pm-9:35 pm

1 stop8h 05m

Philadelphia

Thu 10/22

7:40 pm-11:55 pm

1 stop5h 15m

$247

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Tue 10/20

11:25 am-9:50 pm

2 stops9h 25m

Philadelphia

Thu 10/22

7:40 pm-11:55 pm

1 stop5h 15m

$252

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 10/21

10:03 am-11:11 pm

2 stops12h 08m

Philadelphia

Sat 11/7

7:42 am-8:45 am

1 stop26h 03m

$254

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 10/26

10:03 am-7:21 am

2 stops20h 18m

Philadelphia

Sat 11/7

7:25 pm-8:45 am

1 stop14h 20m

$254

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Fri 10/23

10:34 pm-7:18 am

1 stop31h 44m

Philadelphia

Mon 10/26

5:50 am-7:26 pm

1 stop14h 36m

$267

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 10/21

10:48 am-6:18 pm

1 stop6h 30m

Philadelphia

Wed 11/4

6:00 am-12:35 pm

1 stop7h 35m

$267

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Tue 10/27

5:30 am-1:21 pm

1 stop6h 51m

Philadelphia

Tue 11/3

3:05 pm-9:10 pm

1 stop7h 05m

$267

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 10/14

8:21 pm-1:16 am

1 stop27h 55m

Philadelphia

Tue 10/20

5:50 am-7:26 pm

1 stop14h 36m

$275

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Antonio to Philadelphia

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between San Antonio and Philadelphia?

Prices are currently low for flights on this route.

Typical prices usually range from $348 to $478.
The lowest price recently found on this route was $247.

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from San Antonio is in April. Flight prices, which tend to average around $341, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Philadelphia, with average flight prices from San Antonio averaging around $371.

What is the cheapest day to depart on your flight to Philadelphia?

The cheapest day to depart from San Antonio to Philadelphia is on a Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $471. On the other hand, Monday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,035.

What is the cheapest time of day to depart on your flight to Philadelphia?

According to our data, the cheapest time of day to fly to Philadelphia is in the morning. momondo users have found flights departing from San Antonio to Philadelphia in the morning for as low as $542. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is at noon when prices are around $1,190.

What is the cheapest San Antonio to Philadelphia flight route?

Fly from San Antonio to Philadelphia for the best San Antonio - Philadelphia flight prices

How far in advance should I book a flight from San Antonio to Philadelphia?

You are more likely to see cheaper flights to Philadelphia from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $435 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from San Antonio for as low as $302 on momondo.

What cabin class options are available on San Antonio to Philadelphia flights?

There are 4 cabin classes available to choose from on San Antonio to Philadelphia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Antonio to Philadelphia flight prices changed over time?

As of September 2026, prices for San Antonio to Philadelphia flights are approximately 50% cheaper when compared to flights at the same time last year.

When to book flights from San Antonio to Philadelphia

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Philadelphia according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Antonio to Philadelphia (SAT to PHL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Philadelphia

Best Price Found	$104
Fastest flight time	3h 43m
Direct flights	Every day
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from San Antonio in the past 72 hours is $104. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $247.

The fastest flight from San Antonio to Philadelphia takes 3h 43m

Direct flights go from San Antonio to Philadelphia every day.

There is 1 airport in Philadelphia. From San Antonio there are direct flights to Philadelphia (PHL).

Search flight deals

Frequently asked questions about flying from San Antonio to Philadelphia

How far is San Antonio to Philadelphia by plane?
San Antonio and Philadelphia are 1504.8 mi apart from one another. Flights usually cover this in 3h 43m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Antonio Airport to Philadelphia Airport?
Prices for flights from San Antonio Airport to Philadelphia Airport refresh daily.
How many operators does momondo search for flights from San Antonio Airport to Philadelphia Airport?
As of September 2026, there are 5 operators available to choose from for flights from San Antonio Airport to Philadelphia Airport.
How old do you have to be to fly from San Antonio Airport to Philadelphia Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Antonio Airport to Philadelphia Airport.
What documentation or ID do you need to fly to Philadelphia Airport?
The necessary travel and health documents for your Philadelphia Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from San Antonio to Philadelphia?
Based on momondo bookings for flights between San Antonio and Philadelphia, the leading plane model is Airbus A319, making up 53.66% of the total bookings. Other popular models include Airbus A220-300 with 17.07%, Airbus A320-100/200 with 14.63%, and Embraer 175 (Enhanced Winglets) with 2.44%.
What is the most popular airline from San Antonio to Philadelphia?
Based on momondo bookings for flights between San Antonio and Philadelphia, the leading airline is American Airlines, making up 48% of the total bookings. Other popular airlines include Southwest with 27%, Frontier with 11%, and Delta with 9%.

Best airlines flying from San Antonio to Philadelphia

Compare and see reviews for airlines that fly from San Antonio to Philadelphia with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $141	Free Cancellation	Rating 5.6 2,572 reviews	Search Frontier flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 10,248 reviews	Search United Airlines flights
Southwest	PriceFrom $221	Free Cancellation	Rating 8.0 4,201 reviews	Search Southwest flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,608 reviews	Search Delta flights
American Airlines	PriceFrom $269	Free Cancellation	Rating 7.0 12,098 reviews	Search American Airlines flights

American Airlines Flights From San Antonio to Philadelphia
American Airlines flight deals from San Antonio to Philadelphia start from $269 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $489 round-trip - but some users have found much cheaper deals with momondo.

Wildwood

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Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Chester

Vineland

Avalon

Lewes

Elkton

Pottstown

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Philadelphia?

It is quick and easy to find San Antonio to Philadelphia flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Philadelphia that suits you.

Can I find flights from San Antonio to Philadelphia with flexible booking policies on momondo?

Flights from San Antonio to Philadelphia with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Antonio to Philadelphia?

Once all potential San Antonio to Philadelphia flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from San Antonio to Philadelphia right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Antonio to Philadelphia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.