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

Frontier and United Airlines are the most popular carriers operating from San Antonio to Philadelphia

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.

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

The number of flights available between San Antonio and Philadelphia is 1 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, 7 flights take off from San Antonio and land in Philadelphia each week. The most common flight departure day for this route is Thu, with 29% of weekly flights taking off on this day.

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.

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.

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.

$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

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

18h 56m1 stop Orlando

9:58 pm - 12:42 pmPHL Philadelphia-SAT San Antonio

15h 44m1 stop Orlando

$238Frontier

Wed, Nov 25 - Tue, Dec 1

1:34 pm - 5:11 amSAT San Antonio-PHL Philadelphia

14h 37m1 stop Las Vegas Harry Reid Intl

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

16h 01m1 stop Las Vegas Harry Reid Intl

$258Frontier

Thu, Dec 24 - Thu, Dec 31

4:40 pm - 12:52 amSAT San Antonio-PHL Philadelphia

7h 12m1 stop Atlanta Hartsfield-Jackson

6:10 pm - 11:35 pmPHL Philadelphia-SAT San Antonio

6h 25m1 stop Atlanta Hartsfield-Jackson

$259Delta

Wed, Dec 9 - Sat, Dec 12

5:05 pm - 12:52 amSAT San Antonio-PHL Philadelphia

6h 47m1 stop Atlanta Hartsfield-Jackson

5:19 pm - 12:35 amPHL Philadelphia-SAT San Antonio

8h 16m1 stop Atlanta Hartsfield-Jackson

$259Delta

Sat, Dec 12 - Mon, Dec 14

12:32 pm - 5:26 pmSAT San Antonio-PHL Philadelphia

27h 54m2 stops Orlando Atlanta Hartsfield-Jackson

4:16 pm - 8:45 amPHL Philadelphia-SAT San Antonio

17h 29m1 stop Raleigh-Durham

$269Multiple Airlines

Wed, Dec 9 - Sat, Dec 12

1:27 pm - 8:52 amSAT San Antonio-PHL Philadelphia

18h 25m1 stop Orlando

5:22 pm - 9:10 amPHL Philadelphia-SAT San Antonio

16h 48m2 stops Atlanta Hartsfield-Jackson Raleigh-Durham

$324Multiple Airlines

Mon, Jan 4 - Wed, Jan 6

9:24 am - 4:24 pmSAT San Antonio-PHL Philadelphia

6h 00m1 stop Dallas/Fort Worth

4:06 pm - 12:07 amPHL Philadelphia-SAT San Antonio

9h 01m1 stop Dallas/Fort Worth

$359American Airlines

Thu, Nov 26 - Thu, Dec 3

5:49 pm - 11:59 pmSAT San Antonio-PHL Philadelphia

5h 10m1 stop Charlotte Douglas

6:00 am - 12:39 pmPHL Philadelphia-SAT San Antonio

7h 39m1 stop Charlotte Douglas

$359American Airlines

Sat, Nov 21 - Thu, Nov 26

5:30 am - 4:05 pmSAT San Antonio-PHL Philadelphia

9h 35m2 stops Dallas Love Field Lambert-St Louis

2:45 pm - 10:45 pmPHL Philadelphia-SAT San Antonio

9h 00m1 stop Lambert-St Louis

$370Southwest

Thu, Nov 26 - Thu, Dec 3

5:50 am - 12:30 pmSAT San Antonio-PHL Philadelphia

5h 40m1 stop Dallas Love Field

1:55 pm - 10:10 pmPHL Philadelphia-SAT San Antonio

9h 15m1 stop Orlando

$379Southwest

Wed, Nov 18 - Wed, Nov 18

Cheap last minute flights

Enter your travel dates to find the best prices.

9:25 am - 11:24 pmSAT San Antonio-PHL Philadelphia

12h 59m1 stop Raleigh-Durham

12:59 pm - 7:25 pmPHL Philadelphia-SAT San Antonio

31h 26m2 stops Tampa Denver Intl

$368Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

9:25 am - 4:24 pmSAT San Antonio-PHL Philadelphia

5h 59m1 stop Raleigh-Durham

12:59 pm - 7:25 pmPHL Philadelphia-SAT San Antonio

31h 26m2 stops Tampa Denver Intl

$373Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

10:30 pm - 11:16 pmSAT San Antonio-PHL Philadelphia

23h 46m2 stops Las Vegas Harry Reid Intl Atlanta Hartsfield-Jackson

3:22 pm - 7:25 pmPHL Philadelphia-SAT San Antonio

29h 03m2 stops Orlando Denver Intl

$497Frontier

Thu, Nov 5 - Mon, Nov 9

8:20 pm - 11:16 pmSAT San Antonio-PHL Philadelphia

25h 56m2 stops Denver Intl Atlanta Hartsfield-Jackson

3:22 pm - 7:25 pmPHL Philadelphia-SAT San Antonio

29h 03m2 stops Orlando Denver Intl

$535Frontier

Thu, Nov 5 - Mon, Nov 9

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

3h 43mnonstop

5:30 pm - 10:56 pmPHL Philadelphia-SAT San Antonio

6h 26m1 stop Dallas/Fort Worth

$665American Airlines

Sat, Oct 31 - Tue, Nov 3

8:38 am - 2:50 pmSAT San Antonio-PHL Philadelphia

5h 12m1 stop Dallas/Fort Worth

5:30 pm - 10:56 pmPHL Philadelphia-SAT San Antonio

6h 26m1 stop Dallas/Fort Worth

$675American Airlines

Sat, Oct 31 - Tue, Nov 3

5:30 am - 12:53 pmSAT San Antonio-PHL Philadelphia

6h 23m1 stop Atlanta Hartsfield-Jackson

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

7h 05m1 stop Minneapolis St Paul

$675Delta

Wed, Nov 4 - Sat, Nov 7

2:00 pm - 8:30 pmSAT San Antonio-PHL Philadelphia

5h 30m1 stop Atlanta Hartsfield-Jackson

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

7h 05m1 stop Minneapolis St Paul

$675Delta

Tue, Nov 3 - Sat, Nov 7

4:55 pm - 11:15 pmSAT San Antonio-PHL Philadelphia

5h 20m1 stop Lambert-St Louis

5:00 am - 12:05 pmPHL Philadelphia-SAT San Antonio

8h 05m1 stop Denver Intl

$732Southwest

Mon, Nov 2 - Wed, Nov 4

12:00 pm - 7:25 pmSAT San Antonio-PHL Philadelphia

6h 25m1 stop Denver Intl

6:20 pm - 11:40 pmPHL Philadelphia-SAT San Antonio

6h 20m1 stop Chicago Midway

$732Southwest

Mon, Nov 2 - Tue, Nov 3

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Delta flights from San Antonio to Philadelphia

Our best Delta deals on San Antonio to Philadelphia flight tickets

Delta

Dec 9

SAT4:40 pmSan Antonio

7h 12m

1 stop

PHL12:52 amPhiladelphia

Dec 12

PHL6:10 pmPhiladelphia

6h 25m

1 stop

SAT11:35 pmSan Antonio

$259

Delta

Dec 12

SAT3:25 pmSan Antonio

7h 02m

1 stop

PHL11:27 pmPhiladelphia

Dec 14

PHL10:35 amPhiladelphia

5h 56m

1 stop

SAT3:31 pmSan Antonio

$359

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets

Frontier

Nov 25

SAT12:06 pmSan Antonio

18h 56m

1 stop

PHL8:02 amPhiladelphia

Dec 1

PHL9:58 pmPhiladelphia

15h 44m

1 stop

SAT12:42 pmSan Antonio

$238

Frontier

Dec 9

SAT12:32 pmSan Antonio

22h 16m

1 stop

PHL11:48 amPhiladelphia

Dec 11

PHL5:01 amPhiladelphia

7h 39m

1 stop

SAT11:40 amSan Antonio

$258

Frontier

Jan 8

SAT11:05 amSan Antonio

8h 07m

1 stop

PHL8:12 pmPhiladelphia

Jan 12

PHL6:15 amPhiladelphia

38h 12m

2 stops

SAT7:27 pmSan Antonio

$273

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

Wed 11/25

12:06 pm-8:02 am

1 stop18h 56m

Philadelphia

Tue 12/1

9:58 pm-12:42 pm

1 stop15h 44m

$238

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Thu 12/24

1:34 pm-5:11 am

1 stop14h 37m

Philadelphia

Thu 12/31

7:52 pm-10:53 am

1 stop16h 01m

$258

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 12/9

4:40 pm-12:52 am

1 stop7h 12m

Philadelphia

Sat 12/12

6:10 pm-11:35 pm

1 stop6h 25m

$259

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Sat 12/12

5:05 pm-12:52 am

1 stop6h 47m

Philadelphia

Mon 12/14

5:19 pm-12:35 am

1 stop8h 16m

$259

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 12/9

12:32 pm-5:26 pm

2 stops27h 54m

Philadelphia

Sat 12/12

4:16 pm-8:45 am

1 stop17h 29m

$269

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Mon 1/4

1:27 pm-8:52 am

1 stop18h 25m

Philadelphia

Wed 1/6

5:22 pm-9:10 am

2 stops16h 48m

$324

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Thu 11/26

9:24 am-4:24 pm

1 stop6h 00m

Philadelphia

Thu 12/3

4:06 pm-12:07 am

1 stop9h 01m

$359

Quickest round-trip

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Sat 11/21

5:49 pm-11:59 pm

1 stop5h 10m

Philadelphia

Thu 11/26

6:00 am-12:39 pm

1 stop7h 39m

$359

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Thu 11/26

5:30 am-4:05 pm

2 stops9h 35m

Philadelphia

Thu 12/3

2:45 pm-10:45 pm

1 stop9h 00m

$370

San AntonioPhiladelphia

SAT San Antonio - PHL Philadelphia

SATPHL

San Antonio

Wed 11/18

5:50 am-12:30 pm

1 stop5h 40m

Philadelphia

Wed 11/18

1:55 pm-10:10 pm

1 stop9h 15m

$379

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 $388 to $566.
The lowest price recently found on this route was $238.

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, Sunday 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 $864.

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 $1,192.

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 $450 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	$104
Fastest flight time	5h 30m
Direct flights	None

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 $238.

The fastest flight from San Antonio to Philadelphia takes 5h 30m

There are no direct flights from San Antonio to Philadelphia. There are no popular flight routes from San Antonio to Philadelphia.

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 5h 30m, 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 51.85% of the total bookings. Other popular models include Airbus A220-300 with 16.05%, Airbus A320-100/200 with 13.58%, and Boeing 737 MAX 8 with 3.70%.
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 47% 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 2,515 reviews	Search Frontier flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.3 10,454 reviews	Search United Airlines flights
Southwest	PriceFrom $221	Free Cancellation	Rating 7.9 4,217 reviews	Search Southwest flights
Delta	PriceFrom $236	Free Cancellation	Rating 7.8 8,691 reviews	Search Delta flights
American Airlines	PriceFrom $247	Free Cancellation	Rating 7.0 12,209 reviews	Search American Airlines flights

American Airlines Flights From San Antonio to Philadelphia
American Airlines flight deals from San Antonio to Philadelphia start from $247 round-trip. Over the 3 American Airlines flights for this route in a normal week, average airfare is usually $528 round-trip - but some users have found much cheaper deals with momondo.

Wildwood

Cape May

Rehoboth Beach

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Essington

Dover

Dewey Beach

New Castle

North Wildwood

Vineland

Chester

Lewes

Elkton

Pottstown

Avalon

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.