What airlines fly to San Antonio?

American Airlines, United Airlines and Delta are the top three most popular airlines that fly to San Antonio from Philadelphia according to our data. American Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 7 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

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

Flights via Denver (DEN) offer the lowest average round-trip price of $138.

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

Nashville (BNA) has the shortest average layover time for this route: 0h 40m.

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

The number of flights available between Philadelphia and San Antonio is 14 per week as of August 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

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

As of August 2025, 2 flights take off from Philadelphia and land in San Antonio each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

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

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

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

Atlanta (ATL) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 5h 05m.

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

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

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

As of August 2025, there are 6 operators available to choose from for flights from Philadelphia Airport to San Antonio Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Antonio Airport.

What documentation or ID do you need to fly to San Antonio Airport?

The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$73 Cheap Flights from Philadelphia to San Antonio (PHL-SAT) in 2025

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

Prices are currently low for flights on this route. Typical prices usually range from $340 to $555. The lowest price recently found on this route was $251.

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Find the cheapest flights from Philadelphia to San Antonio (PHL-SAT)

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

5:25 am - 6:13 pmPHL-SAT

13h 48m1 stop

5:45 pm - 6:44 pmSAT-PHL

23h 59m1 stop

$251

Find Deal

Fri, Oct 10 - Mon, Oct 13

9:50 pm - 1:49 pmPHL-SAT

16h 59m2 stops

2:54 pm - 11:59 pmSAT-PHL

8h 05m1 stop

$252Spirit Airlines

Find Deal

Sat, Sep 20 - Thu, Sep 25

5:05 am - 6:13 pmPHL-SAT

14h 08m1 stop

7:19 pm - 11:52 amSAT-PHL

15h 33m1 stop

$253

Find Deal

Sun, Oct 12 - Sun, Oct 26

10:03 pm - 4:30 pmPHL-SAT

19h 27m1 stop

9:47 pm - 8:51 pmSAT-PHL

22h 04m1 stop

$254

Find Deal

Thu, Sep 11 - Tue, Sep 16

9:50 pm - 6:12 pmPHL-SAT

21h 22m1 stop

9:47 pm - 8:51 pmSAT-PHL

22h 04m1 stop

$255Spirit Airlines

Find Deal

Sat, Sep 13 - Tue, Sep 16

10:03 pm - 4:47 pmPHL-SAT

19h 44m2 stops

5:40 pm - 12:57 amSAT-PHL

6h 17m1 stop

$256

Find Deal

Thu, Sep 4 - Mon, Sep 8

6:42 am - 4:37 pmPHL-SAT

10h 55m1 stop

2:59 pm - 5:43 pmSAT-PHL

25h 44m2 stops

$257

Find Deal

Sat, Oct 25 - Wed, Oct 29

6:42 am - 7:35 pmPHL-SAT

13h 53m1 stop

5:45 pm - 12:59 amSAT-PHL

6h 14m1 stop

$258Frontier

Find Deal

Fri, Oct 10 - Fri, Oct 24

7:15 am - 1:11 pmPHL-SAT

30h 56m1 stop

5:27 pm - 1:09 amSAT-PHL

6h 42m1 stop

$271Frontier

Find Deal

Thu, Aug 28 - Mon, Sep 1

6:25 am - 7:33 pmPHL-SAT

14h 08m1 stop

5:27 pm - 1:09 amSAT-PHL

6h 42m1 stop

$298Frontier

Find Deal

Fri, Aug 29 - Mon, Sep 1

Frontier flights from Philadelphia to San Antonio

Our best Frontier deals on Philadelphia to San Antonio flight tickets

Frontier

Aug 30

PHL6:25 amPhiladelphia

9h 10m

1 stop

SAT2:35 pmSan Antonio

Sep 1

SAT5:27 pmSan Antonio

6h 42m

1 stop

PHL1:09 amPhiladelphia

$255

Find similar

Frontier

Oct 10

PHL6:42 amPhiladelphia

13h 53m

1 stop

SAT7:35 pmSan Antonio

Oct 24

SAT5:45 pmSan Antonio

6h 14m

1 stop

PHL12:59 amPhiladelphia

$258

Find similar

Frontier

Aug 28

PHL7:15 amPhiladelphia

30h 56m

1 stop

SAT1:11 pmSan Antonio

Sep 1

SAT5:27 pmSan Antonio

6h 42m

1 stop

PHL1:09 amPhiladelphia

$271

Find similar

Spirit Airlines flights from Philadelphia to San Antonio

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

Spirit Airlines

Sep 20

PHL9:50 pmPhiladelphia

16h 59m

2 stops

SAT1:49 pmSan Antonio

Sep 25

SAT2:54 pmSan Antonio

8h 05m

1 stop

PHL11:59 pmPhiladelphia

$252

Find similar

Spirit Airlines

Sep 13

PHL9:50 pmPhiladelphia

21h 22m

1 stop

SAT6:12 pmSan Antonio

Sep 16

SAT9:47 pmSan Antonio

22h 04m

1 stop

PHL8:51 pmPhiladelphia

$255

Find similar

Spirit Airlines

Nov 11

PHL5:15 amPhiladelphia

10h 56m

1 stop

SAT3:11 pmSan Antonio

Nov 14

SAT6:00 amSan Antonio

17h 32m

2 stops

PHL12:32 amPhiladelphia

$259

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 10/10

5:25 am-6:13 pm

1 stop13h 48m

San Antonio

Mon 10/13

5:45 pm-6:44 pm

1 stop23h 59m

$251

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sat 9/20

9:50 pm-1:49 pm

2 stops16h 59m

San Antonio

Thu 9/25

2:54 pm-11:59 pm

1 stop8h 05m

$252

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sun 10/12

5:05 am-6:13 pm

1 stop14h 08m

San Antonio

Sun 10/26

7:19 pm-11:52 am

1 stop15h 33m

$253

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 9/11

10:03 pm-4:30 pm

1 stop19h 27m

San Antonio

Tue 9/16

9:47 pm-8:51 pm

1 stop22h 04m

$254

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sat 9/13

9:50 pm-6:12 pm

1 stop21h 22m

San Antonio

Tue 9/16

9:47 pm-8:51 pm

1 stop22h 04m

$255

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 9/4

10:03 pm-4:47 pm

2 stops19h 44m

San Antonio

Mon 9/8

5:40 pm-12:57 am

1 stop6h 17m

$256

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sat 10/25

6:42 am-4:37 pm

1 stop10h 55m

San Antonio

Wed 10/29

2:59 pm-5:43 pm

2 stops25h 44m

$257

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 10/10

6:42 am-7:35 pm

1 stop13h 53m

San Antonio

Fri 10/24

5:45 pm-12:59 am

1 stop6h 14m

$258

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 8/28

7:15 am-1:11 pm

1 stop30h 56m

San Antonio

Mon 9/1

5:27 pm-1:09 am

1 stop6h 42m

$271

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 8/29

6:25 am-7:33 pm

1 stop14h 08m

San Antonio

Mon 9/1

5:27 pm-1:09 am

1 stop6h 42m

$298

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 Philadelphia to San Antonio

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 Philadelphia and San Antonio?

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of April, then book flights to San Antonio from Philadelphia during February instead. Flights to San Antonio in February, while not as cheap as those in April, still average around $409.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Saturday when prices can be found for as low as $399. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $525.

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

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Philadelphia to San Antonio in the evening for as low as $353. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $485. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Philadelphia to San Antonio flight route?

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

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

You are more likely to see cheaper flights to San Antonio from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $445 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Philadelphia for as low as $317 on momondo.

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

There are 3 cabin classes available to choose from on Philadelphia to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of August 2025, prices for Philadelphia to San Antonio flights are approximately 45% more expensive when compared to flights at the same time last year.

When to book flights from Philadelphia to San Antonio

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

Estimated round-trip price

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

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

Best Price Found	$275
Fastest flight time	4h 03m
Direct flights	Every day
Airports in San Antonio	1 airport

The best one-way flight to San Antonio from Philadelphia in the past 72 hours is $275. The best round-trip flight deal from Philadelphia to San Antonio found on momondo in the last 72 hours is $447.

The fastest flight from Philadelphia to San Antonio takes 4h 03m

Direct flights go from Philadelphia to San Antonio every day.

There is 1 airport near San Antonio: San Antonio (SAT)

Search flight deals

How far is Philadelphia to San Antonio by plane?
A flight from Philadelphia to San Antonio will travel around 1504.8 mi. In terms of flight time, this usually takes a little over 6h 33m.
When did momondo last update prices for flights from Philadelphia Airport to San Antonio Airport?
Prices for flights from Philadelphia Airport to San Antonio Airport refresh daily.
How many operators does momondo search for flights from Philadelphia Airport to San Antonio Airport?
As of August 2025, there are 6 operators available to choose from for flights from Philadelphia Airport to San Antonio Airport.
How old do you have to be to fly from Philadelphia Airport to San Antonio Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Philadelphia Airport to San Antonio Airport.
What documentation or ID do you need to fly to San Antonio Airport?
The travel and health documents required for your trip to San Antonio Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Antonio Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Philadelphia to San Antonio?
Based on momondo bookings for flights between Philadelphia and San Antonio, the leading plane model is Airbus A319, making up 90.55% of the total bookings. Other popular models include Airbus A321neo with 3.15%, Airbus A321-100/200 with 1.57%, and Embraer 175 with 1.57%.
What is the most popular airline from Philadelphia to San Antonio?
Based on momondo bookings for flights between Philadelphia and San Antonio, the leading airline is American Airlines, making up 51% of the total bookings. Other popular airlines include Southwest with 19%, Delta with 12%, and Frontier with 7%.

Best airlines flying from Philadelphia to San Antonio

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $125	Free Cancellation	Rating 5.8 3,207 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $164	Free Cancellation	Rating 6.3 8,035 reviews	Search Spirit Airlines flights
Delta	PriceFrom $271	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $308	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights
American Airlines	PriceFrom $310	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $329	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights

American Airlines Flights From Philadelphia to San Antonio
American Airlines is one of the most popular airlines flying from Philadelphia to San Antonio, operating 7 flights/week on average for this route. A good American Airlines flight deal for Philadelphia to San Antonio starts from $310 round-trip, up to an average price of $486. Our users have rated American Airlines at 7.2/10.

New Braunfels

Kerrville

Boerne

Schertz

Pleasanton

Why use momondo?

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

It is quick and easy to find Philadelphia to San Antonio 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 San Antonio that suits you.

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

Yes. momondo allows you to filter the results for Philadelphia to San Antonio flights to just show those with flexible booking policies.

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

Once all potential Philadelphia to San Antonio 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 Philadelphia to San Antonio right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Philadelphia to San Antonio now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Antonio and let you know when they change.

An easier way to manage your San Antonio trip

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Cheap flights from Philadelphia to San Antonio from $73

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to San Antonio departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Find the cheapest flights from Philadelphia to San Antonio (PHL-SAT)

Cheap round-trip flights

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Frontier flights from Philadelphia to San Antonio

Our best Frontier deals on Philadelphia to San Antonio flight tickets

Spirit Airlines flights from Philadelphia to San Antonio

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

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

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

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

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

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of April, then book flights to San Antonio from Philadelphia during February instead. Flights to San Antonio in February, while not as cheap as those in April, still average around $409.

What is the cheapest day to depart on your flight to San Antonio?

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

What is the cheapest Philadelphia to San Antonio flight route?

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

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

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

There are 3 cabin classes available to choose from on Philadelphia to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of August 2025, prices for Philadelphia to San Antonio flights are approximately 45% more expensive when compared to flights at the same time last year.

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

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

What airlines fly to San Antonio?

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

Atlanta (ATL) was the most common stop: 43% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Denver (DEN) offer the lowest average round-trip price of $138.

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

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 5h 05m.

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

Nashville (BNA) has the shortest average layover time for this route: 0h 40m.

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

As of August 2025, 2 flights take off from Philadelphia and land in San Antonio each day. The most common flight departure time for this route is 6:00PM, with 100% of daily flights taking off in the evening.

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

The number of flights available between Philadelphia and San Antonio is 14 per week as of August 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

When to book flights from Philadelphia to San Antonio

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in San Antonio

How far is Philadelphia to San Antonio by plane?

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

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

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

What documentation or ID do you need to fly to San Antonio Airport?

What is the most popular plane model from Philadelphia to San Antonio?

What is the most popular airline from Philadelphia to San Antonio?

Best airlines flying from Philadelphia to San Antonio

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

American Airlines Flights From Philadelphia to San Antonio

Traveling to a place near San Antonio?

Why use momondo?

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

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

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

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

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Texas