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 39% 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 airport is the most popular layover for flights between San Antonio and Philadelphia?

Dallas (DFW) was the most common stop: 22% of momondo users choosing 1-stop flights on this route connected there.

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 October 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 October 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.

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

Frontier, United Airlines, and Southwest 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 October 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.

$120 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

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:58 pm - 8:20 pmSAT San Antonio-PHL Philadelphia

30h 22m2 stops Memphis Raleigh-Durham

4:16 pm - 9:10 amPHL Philadelphia-SAT San Antonio

17h 54m1 stop Raleigh-Durham

$267Multiple Airlines

Mon, Feb 1 - Sat, Feb 6

12:32 pm - 12:52 amSAT San Antonio-PHL Philadelphia

11h 20m1 stop Orlando

7:52 pm - 10:53 amPHL Philadelphia-SAT San Antonio

16h 01m1 stop Las Vegas Harry Reid Intl

$280Frontier

Wed, Dec 16 - Mon, Dec 21

5:55 am - 12:35 pmSAT San Antonio-PHL Philadelphia

5h 40m1 stop Dallas Love Field

1:45 pm - 8:15 pmPHL Philadelphia-SAT San Antonio

7h 30m1 stop Orlando

$282Southwest

Mon, Feb 1 - Sat, Feb 6

12:06 pm - 8:02 amSAT San Antonio-PHL Philadelphia

18h 56m1 stop Orlando

9:55 pm - 9:16 pmPHL Philadelphia-SAT San Antonio

24h 21m1 stop Las Vegas Harry Reid Intl

$287Frontier

Wed, Nov 25 - Thu, Nov 26

12:45 pm - 8:55 pmSAT San Antonio-PHL Philadelphia

7h 10m2 stops Dallas Love Field Lambert-St Louis

6:00 am - 1:35 pmPHL Philadelphia-SAT San Antonio

8h 35m2 stops Lambert-St Louis Dallas Love Field

$293Southwest

Mon, Feb 1 - Sat, Feb 6

8:20 pm - 7:11 amSAT San Antonio-PHL Philadelphia

33h 51m2 stops Denver Intl Atlanta Hartsfield-Jackson

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

14h 20m1 stop Raleigh-Durham

$295Multiple Airlines

Tue, Nov 10 - Sat, Nov 14

4:19 pm - 10:57 pmSAT San Antonio-PHL Philadelphia

5h 38m1 stop Houston George Bush Intcntl

4:59 pm - 11:37 pmPHL Philadelphia-SAT San Antonio

7h 38m1 stop Chicago O'Hare Intl

$437United Airlines

Fri, Nov 6 - Mon, Nov 9

5:30 am - 11:37 amSAT San Antonio-PHL Philadelphia

5h 07m1 stop Houston George Bush Intcntl

6:00 am - 3:38 pmPHL Philadelphia-SAT San Antonio

10h 38m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

$442United Airlines

Thu, Nov 19 - Thu, Nov 26

5:25 am - 11:37 amSAT San Antonio-PHL Philadelphia

5h 12m1 stop Detroit Metropolitan Wayne County

3:39 pm - 10:19 pmPHL Philadelphia-SAT San Antonio

7h 40m1 stop Atlanta Hartsfield-Jackson

$477Delta

Sat, Dec 12 - Mon, Dec 14

6:30 am - 1:07 pmSAT San Antonio-PHL Philadelphia

5h 37m1 stop Atlanta Hartsfield-Jackson

6:10 pm - 11:32 pmPHL Philadelphia-SAT San Antonio

6h 22m1 stop Atlanta Hartsfield-Jackson

$483Delta

Mon, Nov 9 - Sat, Nov 14

Cheap last minute flights

Enter your travel dates to find the best prices.

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

$314Frontier

Thu, Oct 22 - Sat, Oct 24

10:03 am - 9:30 amSAT San Antonio-PHL Philadelphia

22h 27m1 stop Orlando

5:15 am - 9:18 amPHL Philadelphia-SAT San Antonio

29h 03m1 stop Orlando

$314Frontier

Mon, Oct 26 - Thu, Oct 29

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

20h 18m2 stops Orlando Atlanta Hartsfield-Jackson

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

24h 15m1 stop Raleigh-Durham

$430Multiple Airlines

Mon, Oct 26 - Wed, Oct 28

5:50 am - 12:05 pmSAT San Antonio-PHL Philadelphia

5h 15m1 stop Dallas Love Field

5:30 am - 2:00 pmPHL Philadelphia-SAT San Antonio

9h 30m1 stop Denver Intl

$457Southwest

Wed, Oct 21 - Wed, Oct 28

5:50 am - 12:05 pmSAT San Antonio-PHL Philadelphia

5h 15m1 stop Dallas Love Field

6:25 am - 10:40 amPHL Philadelphia-SAT San Antonio

5h 15m1 stop Lambert-St Louis

$457Southwest

Wed, Oct 21 - Wed, Oct 28

2:00 pm - 9:29 pmSAT San Antonio-PHL Philadelphia

6h 29m1 stop Chicago O'Hare Intl

10:30 am - 6:03 pmPHL Philadelphia-SAT San Antonio

8h 33m2 stops Washington, D.C. Dulles Intl Houston George Bush Intcntl

$462United Airlines

Wed, Oct 21 - Wed, Oct 28

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

3h 43mnonstop

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

4h 19mnonstop

$655American Airlines

Wed, Oct 21 - Wed, Oct 28

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

3h 43mnonstop

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

4h 19mnonstop

$655American Airlines

Sat, Oct 24 - Tue, Oct 27

9:25 am - 4:23 pmSAT San Antonio-PHL Philadelphia

5h 58m1 stop Raleigh-Durham

7:15 am - 9:08 amPHL Philadelphia-SAT San Antonio

26h 53m1 stop Orlando

$688Multiple Airlines

Thu, Oct 22 - Sun, Oct 25

2:00 pm - 11:30 pmSAT San Antonio-PHL Philadelphia

8h 30m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl

9:45 am - 4:49 pmPHL Philadelphia-SAT San Antonio

8h 04m1 stop Chicago O'Hare Intl

$765United Airlines

Sat, Oct 24 - Tue, Oct 27

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Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets

Frontier

Dec 16

SAT12:32 pmSan Antonio

11h 20m

1 stop

PHL12:52 amPhiladelphia

Dec 21

PHL7:52 pmPhiladelphia

16h 01m

1 stop

SAT10:53 amSan Antonio

$280

Frontier

Nov 25

SAT12:06 pmSan Antonio

18h 56m

1 stop

PHL8:02 amPhiladelphia

Nov 26

PHL9:55 pmPhiladelphia

24h 21m

1 stop

SAT9:16 pmSan Antonio

$287

Frontier

Dec 1

SAT6:44 pmSan Antonio

22h 48m

2 stops

PHL6:32 pmPhiladelphia

Dec 8

PHL4:26 pmPhiladelphia

20h 14m

1 stop

SAT11:40 amSan Antonio

$288

Southwest flights from San Antonio to Philadelphia

Our best Southwest deals on San Antonio to Philadelphia flight tickets

Southwest

Feb 1

SAT5:55 amSan Antonio

5h 40m

1 stop

PHL12:35 pmPhiladelphia

Feb 6

PHL1:45 pmPhiladelphia

7h 30m

1 stop

SAT8:15 pmSan Antonio

$282

Southwest

Feb 1

SAT12:45 pmSan Antonio

7h 10m

2 stops

PHL8:55 pmPhiladelphia

Feb 6

PHL6:00 amPhiladelphia

8h 35m

2 stops

SAT1:35 pmSan Antonio

$293

Southwest

Nov 10

SAT5:50 amSan Antonio

5h 40m

1 stop

PHL12:30 pmPhiladelphia

Nov 12

PHL5:00 amPhiladelphia

7h 45m

1 stop

SAT11:45 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

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 2/1

12:58 pm-8:20 pm

2 stops30h 22m

Philadelphia

Sat 2/6

4:16 pm-9:10 am

1 stop17h 54m

$267

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 12/16

12:32 pm-12:52 am

1 stop11h 20m

Philadelphia

Mon 12/21

7:52 pm-10:53 am

1 stop16h 01m

$280

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 2/1

5:55 am-12:35 pm

1 stop5h 40m

Philadelphia

Sat 2/6

1:45 pm-8:15 pm

1 stop7h 30m

$282

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 11/25

12:06 pm-8:02 am

1 stop18h 56m

Philadelphia

Thu 11/26

9:55 pm-9:16 pm

1 stop24h 21m

$287

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 2/1

12:45 pm-8:55 pm

2 stops7h 10m

Philadelphia

Sat 2/6

6:00 am-1:35 pm

2 stops8h 35m

$293

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Tue 11/10

8:20 pm-7:11 am

2 stops33h 51m

Philadelphia

Sat 11/14

7:25 pm-8:45 am

1 stop14h 20m

$295

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Fri 11/6

4:19 pm-10:57 pm

1 stop5h 38m

Philadelphia

Mon 11/9

4:59 pm-11:37 pm

1 stop7h 38m

$437

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Thu 11/19

5:30 am-11:37 am

1 stop5h 07m

Philadelphia

Thu 11/26

6:00 am-3:38 pm

2 stops10h 38m

$442

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Sat 12/12

5:25 am-11:37 am

1 stop5h 12m

Philadelphia

Mon 12/14

3:39 pm-10:19 pm

1 stop7h 40m

$477

Quickest round-trip

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 11/9

6:30 am-1:07 pm

1 stop5h 37m

Philadelphia

Sat 11/14

6:10 pm-11:32 pm

1 stop6h 22m

$483

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 $354 to $598.
The lowest price recently found on this route was $267.

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 $442. 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 $876.

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 $550. 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 $1,193.

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 $444 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 October 2026, prices for San Antonio to Philadelphia flights are approximately 105% more expensive 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	$120
Fastest flight time	3h 43m
Direct flights	Mon, Tue, Wed, Thu and Fri
Airports in Philadelphia	1 airport

The best one-way flight to Philadelphia from San Antonio in the past 72 hours is $120. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $267.

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

Direct flights go from San Antonio to Philadelphia on Monday, Tuesday, Wednesday, Thursday and Friday. There are no airlines offering direct flights.

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 October 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 53.01% of the total bookings. Other popular models include Airbus A220-300 with 15.66%, Airbus A320-100/200 with 13.25%, and Boeing 737 MAX 8 with 3.61%.
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 5.5 2,523 reviews	Search Frontier flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.3 10,388 reviews	Search United Airlines flights
Southwest	PriceFrom $221	Free Cancellation	Rating 7.9 4,211 reviews	Search Southwest flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
American Airlines	PriceFrom $251	Free Cancellation	Rating 7.0 12,181 reviews	Search American Airlines flights

American Airlines Flights From San Antonio to Philadelphia
American Airlines flight deals from San Antonio to Philadelphia start from $251 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $525 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

Vineland

Chester

Lewes

Pottstown

Avalon

Elkton

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.