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

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

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 41% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 7 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

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 January 2026, there are 6 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.

$62 Cheap Flights from San Antonio to Philadelphia in 2026

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Find the cheapest flights from San Antonio to Philadelphia

Round-trip

One-way

Last minute

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Cheap round-trip flights

Enter your travel dates to find the best prices.

2:13 pm - 7:32 am

SAT

PHL

16h 19m

1 stop

5:30 am - 4:20 pm

PHL

SAT

11h 50m

1 stop

$149Frontier

Sat, Feb 28 - Mon, Mar 2

10:26 am - 7:52 pm

SAT

PHL

8h 26m

1 stop

5:26 pm - 9:30 am

PHL

SAT

17h 04m

1 stop

$167Spirit Airlines

Wed, Mar 4 - Sun, Mar 8

10:26 am - 7:52 pm

SAT

PHL

8h 26m

1 stop

5:30 am - 4:18 pm

PHL

SAT

11h 48m

1 stop

$168Multiple Airlines

Thu, Feb 19 - Mon, Feb 23

10:26 am - 9:53 am

SAT

PHL

22h 27m

1 stop

7:59 pm - 9:30 am

PHL

SAT

14h 31m

1 stop

$173Multiple Airlines

Tue, Feb 24 - Tue, Mar 3

5:04 pm - 1:01 am

SAT

PHL

6h 57m

1 stop

7:59 pm - 9:30 am

PHL

SAT

14h 31m

1 stop

$176Multiple Airlines

Fri, Feb 20 - Tue, Feb 24

5:04 pm - 1:01 am

SAT

PHL

6h 57m

1 stop

5:30 am - 4:20 pm

PHL

SAT

11h 50m

1 stop

$178Frontier

Fri, Feb 27 - Mon, Mar 2

5:04 pm - 1:01 am

SAT

PHL

6h 57m

1 stop

5:30 am - 4:19 pm

PHL

SAT

11h 49m

1 stop

$179Frontier

Fri, Feb 20 - Sun, Feb 22

6:00 am - 7:52 pm

SAT

PHL

12h 52m

2 stops

5:26 pm - 9:30 am

PHL

SAT

17h 04m

1 stop

$180Spirit Airlines

Wed, Mar 4 - Sun, Mar 8

6:00 am - 7:52 pm

SAT

PHL

12h 52m

2 stops

10:38 pm - 12:23 pm

PHL

SAT

14h 45m

1 stop

$182Multiple Airlines

Wed, Mar 4 - Sat, Mar 7

10:27 am - 7:40 pm

SAT

PHL

8h 13m

1 stop

5:00 am - 12:27 pm

PHL

SAT

8h 27m

1 stop

$185Spirit Airlines

Wed, Apr 8 - Sat, Apr 11

Spirit Airlines flights from San Antonio to Philadelphia

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

Spirit Airlines

Mar 4

SAT10:26 amSan Antonio

8h 26m

1 stop

PHL7:52 pmPhiladelphia

Mar 8

PHL5:26 pmPhiladelphia

17h 04m

1 stop

SAT9:30 amSan Antonio

$167

Spirit Airlines

Mar 4

SAT6:00 amSan Antonio

12h 52m

2 stops

PHL7:52 pmPhiladelphia

Mar 8

PHL5:26 pmPhiladelphia

17h 04m

1 stop

SAT9:30 amSan Antonio

$180

Spirit Airlines

Apr 8

SAT10:27 amSan Antonio

8h 13m

1 stop

PHL7:40 pmPhiladelphia

Apr 11

PHL5:00 amPhiladelphia

8h 27m

1 stop

SAT12:27 pmSan Antonio

$185

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets

Frontier

Feb 28

SAT2:13 pmSan Antonio

16h 19m

1 stop

PHL7:32 amPhiladelphia

Mar 2

PHL5:30 amPhiladelphia

11h 50m

1 stop

SAT4:20 pmSan Antonio

$149

Frontier

Feb 27

SAT5:04 pmSan Antonio

6h 57m

1 stop

PHL1:01 amPhiladelphia

Mar 2

PHL5:30 amPhiladelphia

11h 50m

1 stop

SAT4:20 pmSan Antonio

$178

Frontier

Feb 20

SAT5:04 pmSan Antonio

6h 57m

1 stop

PHL1:01 amPhiladelphia

Feb 22

PHL5:30 amPhiladelphia

11h 49m

1 stop

SAT4:19 pmSan Antonio

$179

Fly from

Fly to

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 2/28

2:13 pm-7:32 am

1 stop16h 19m

Philadelphia

Mon 3/2

5:30 am-4:20 pm

1 stop11h 50m

$149

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 3/4

10:26 am-7:52 pm

1 stop8h 26m

Philadelphia

Sun 3/8

5:26 pm-9:30 am

1 stop17h 04m

$167

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 2/19

10:26 am-7:52 pm

1 stop8h 26m

Philadelphia

Mon 2/23

5:30 am-4:18 pm

1 stop11h 48m

$168

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 2/24

10:26 am-9:53 am

1 stop22h 27m

Philadelphia

Tue 3/3

7:59 pm-9:30 am

1 stop14h 31m

$173

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 2/20

5:04 pm-1:01 am

1 stop6h 57m

Philadelphia

Tue 2/24

7:59 pm-9:30 am

1 stop14h 31m

$176

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 2/27

5:04 pm-1:01 am

1 stop6h 57m

Philadelphia

Mon 3/2

5:30 am-4:20 pm

1 stop11h 50m

$178

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 2/20

5:04 pm-1:01 am

1 stop6h 57m

Philadelphia

Sun 2/22

5:30 am-4:19 pm

1 stop11h 49m

$179

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 3/4

6:00 am-7:52 pm

2 stops12h 52m

Philadelphia

Sun 3/8

5:26 pm-9:30 am

1 stop17h 04m

$180

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 3/4

6:00 am-7:52 pm

2 stops12h 52m

Philadelphia

Sat 3/7

10:38 pm-12:23 pm

1 stop14h 45m

$182

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 4/8

10:27 am-7:40 pm

1 stop8h 13m

Philadelphia

Sat 4/11

5:00 am-12:27 pm

1 stop8h 27m

$185

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

What is the cheapest month to fly to Philadelphia?

The cheapest month to fly to Philadelphia from San Antonio is in September. Flight prices, which tend to average around $369, 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 $384.

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 Saturday. Travelers who choose to depart for Philadelphia on a Saturday will often find tickets for as low as $482. 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 $1,280.

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 $503. 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 $998.

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 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 $441 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 $312 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 January 2026, prices for San Antonio to Philadelphia flights are approximately 82% 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	$607
Fastest flight time	3h 40m
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 $607. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $799.

The fastest flight from San Antonio to Philadelphia takes 3h 40m

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

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 40m, 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 January 2026, there are 6 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 35.29% of the total bookings. Other popular models include Boeing 777 with 11.76%, Airbus A321neo with 11.76%, and Airbus A220-300 with 11.76%.
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 50% of the total bookings. Other popular airlines include Southwest with 19%, Delta with 12%, and Frontier with 7%.

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
Spirit Airlines	PriceFrom $115	Free Cancellation	Rating 6.3 8,393 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $142	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Delta	PriceFrom $208	Free Cancellation	Rating 7.9 8,124 reviews	Search Delta flights
United Airlines	PriceFrom $287	Free Cancellation	Rating 7.4 9,214 reviews	Search United Airlines flights
Southwest	PriceFrom $296	Free Cancellation	Rating 8.0 4,267 reviews	Search Southwest flights
American Airlines	PriceFrom $341	Free Cancellation	Rating 7.2 11,207 reviews	Search American Airlines flights

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King of Prussia

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Newark

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Lewes

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Essington

Vineland

New Castle

Pottstown

Somers Point

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.