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.

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

Dallas (DFW) was the most common stop: 18% of momondo users choosing 1-stop flights on this route connected there.

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

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

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

As of July 2026, 6 flights take off from San Antonio and land in Philadelphia each week. The most common flight departure day for this route is Mon, with 33% 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?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to Philadelphia from San Antonio according to our data. American Airlines is the first choice among our users, with 37% 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.

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 July 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.

$125 Cheap Flights from San Antonio to Philadelphia in 2026

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.

8:26 pm - 5:39 am

SAT

PHL

8h 13m

1 stop

8:00 am - 9:29 pm

PHL

SAT

14h 29m

1 stop

$250Frontier

Mon, Aug 31 - Wed, Sep 2

8:26 pm - 5:39 am

SAT

PHL

8h 13m

1 stop

8:00 am - 9:29 pm

PHL

SAT

14h 29m

1 stop

$250Frontier

Mon, Aug 24 - Wed, Aug 26

8:26 pm - 5:39 am

SAT

PHL

8h 13m

1 stop

6:40 pm - 4:13 pm

PHL

SAT

22h 33m

2 stops

$271Multiple Airlines

Sat, Aug 29 - Tue, Sep 1

8:26 pm - 5:39 am

SAT

PHL

8h 13m

1 stop

8:35 am - 4:13 pm

PHL

SAT

8h 38m

2 stops

$284Multiple Airlines

Mon, Aug 24 - Wed, Aug 26

3:30 pm - 10:15 pm

SAT

PHL

5h 45m

1 stop

6:40 pm - 11:05 pm

PHL

SAT

5h 25m

1 stop

$289Southwest

Fri, Aug 28 - Tue, Sep 1

3:25 pm - 10:00 pm

SAT

PHL

5h 35m

1 stop

6:25 am - 12:50 pm

PHL

SAT

7h 25m

2 stops

$294Southwest

Fri, Aug 28 - Tue, Sep 1

7:05 am - 11:48 am

SAT

PHL

3h 43mnonstop

5:32 pm - 8:24 pm

PHL

SAT

3h 52mnonstop

$349American Airlines

Wed, Sep 2 - Wed, Sep 9

7:00 am - 11:43 am

SAT

PHL

3h 43mnonstop

6:17 pm - 9:36 pm

PHL

SAT

4h 19mnonstop

$349American Airlines

Tue, Oct 6 - Tue, Oct 13

11:45 am - 6:41 pm

SAT

PHL

5h 56m

1 stop

12:40 pm - 6:03 pm

PHL

SAT

6h 23m

1 stop

$369United Airlines

Mon, Nov 23 - Thu, Nov 26

5:30 am - 11:37 am

SAT

PHL

5h 07m

1 stop

6:15 am - 3:38 pm

PHL

SAT

10h 23m

2 stops

$374United Airlines

Mon, Nov 23 - Thu, Nov 26

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Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets

Frontier

Aug 31

SAT9:51 amSan Antonio

13h 08m

1 stop

PHL11:59 pmPhiladelphia

Sep 2

PHL8:00 amPhiladelphia

14h 29m

1 stop

SAT9:29 pmSan Antonio

$250

Frontier

Sep 14

SAT10:05 amSan Antonio

7h 26m

1 stop

PHL6:31 pmPhiladelphia

Sep 17

PHL3:30 pmPhiladelphia

18h 40m

1 stop

SAT9:10 amSan Antonio

$260

Frontier

Sep 14

SAT10:05 amSan Antonio

26h 30m

1 stop

PHL1:35 pmPhiladelphia

Sep 17

PHL3:30 pmPhiladelphia

18h 40m

1 stop

SAT9:10 amSan Antonio

$261

American Airlines flights from San Antonio to Philadelphia

Our best American Airlines deals on San Antonio to Philadelphia flight tickets

American Airlines

Sep 2

SAT7:05 amSan Antonio

3h 43m

PHL11:48 amPhiladelphia

Sep 8

PHL5:54 pmPhiladelphia

4h 03m

SAT8:57 pmSan Antonio

$349

American Airlines

Sep 10

SAT7:14 amSan Antonio

3h 51m

PHL12:05 pmPhiladelphia

Sep 17

PHL5:32 pmPhiladelphia

3h 52m

SAT8:24 pmSan Antonio

$350

American Airlines

Sep 3

SAT1:45 pmSan Antonio

3h 48m

PHL6:33 pmPhiladelphia

Sep 6

PHL6:32 pmPhiladelphia

4h 06m

SAT9:38 pmSan Antonio

$354

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 8/31

8:26 pm-5:39 am

1 stop8h 13m

Philadelphia

Wed 9/2

8:00 am-9:29 pm

1 stop14h 29m

$250

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 8/24

8:26 pm-5:39 am

1 stop8h 13m

Philadelphia

Wed 8/26

8:00 am-9:29 pm

1 stop14h 29m

$250

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/29

8:26 pm-5:39 am

1 stop8h 13m

Philadelphia

Tue 9/1

6:40 pm-4:13 pm

2 stops22h 33m

$271

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 8/24

8:26 pm-5:39 am

1 stop8h 13m

Philadelphia

Wed 8/26

8:35 am-4:13 pm

2 stops8h 38m

$284

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 8/28

3:30 pm-10:15 pm

1 stop5h 45m

Philadelphia

Tue 9/1

6:40 pm-11:05 pm

1 stop5h 25m

$289

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 8/28

3:25 pm-10:00 pm

1 stop5h 35m

Philadelphia

Tue 9/1

6:25 am-12:50 pm

2 stops7h 25m

$294

Quickest round-trip

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 9/2

7:05 am-11:48 am

Nonstop3h 43m

Philadelphia

Wed 9/9

5:32 pm-8:24 pm

Nonstop3h 52m

$349

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 10/6

7:00 am-11:43 am

Nonstop3h 43m

Philadelphia

Tue 10/13

6:17 pm-9:36 pm

Nonstop4h 19m

$349

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 11/23

11:45 am-6:41 pm

1 stop5h 56m

Philadelphia

Thu 11/26

12:40 pm-6:03 pm

1 stop6h 23m

$369

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 11/23

5:30 am-11:37 am

1 stop5h 07m

Philadelphia

Thu 11/26

6:15 am-3:38 pm

2 stops10h 23m

$374

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 $338 to $534.
The lowest price recently found on this route was $250.

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 October is another great option to travel to Philadelphia, with average flight prices from San Antonio averaging around $385.

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 $428. 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 $961.

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 $491. 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 $1,207.

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 $430 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 $329 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 July 2026, prices for San Antonio to Philadelphia flights are approximately 17% 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	$304
Fastest flight time	3h 41m
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 $304. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $423.

The fastest flight from San Antonio to Philadelphia takes 3h 41m

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 41m, 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 July 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 71.25% of the total bookings. Other popular models include Airbus A220-300 with 5.00%, Airbus A320-100/200 with 5.00%, and Embraer 175 (Enhanced Winglets) with 2.50%.
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 51% of the total bookings. Other popular airlines include Southwest with 26%, Frontier with 10%, 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 $142	Free Cancellation	Rating 5.6 2,749 reviews	Search Frontier flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 10,052 reviews	Search United Airlines flights
Southwest	PriceFrom $243	Free Cancellation	Rating 8.0 4,228 reviews	Search Southwest flights
Delta	PriceFrom $327	Free Cancellation	Rating 7.8 8,485 reviews	Search Delta flights
American Airlines	PriceFrom $329	Free Cancellation	Rating 7.1 11,839 reviews	Search American Airlines flights

American Airlines Flights From San Antonio to Philadelphia
American Airlines flight deals from San Antonio to Philadelphia start from $329 round-trip. Over the 6 American Airlines flights for this route in a normal week, average airfare is usually $471 round-trip - but some users have found much cheaper deals with momondo.

Wildwood

Rehoboth Beach

Cape May

Wildwood Crest

Ocean City

Cherry Hill

King of Prussia

Newark

Reading

Dewey Beach

Essington

Dover

North Wildwood

New Castle

Chester

Avalon

Lewes

Vineland

Stone Harbor

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.