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

Frontier is the most popular carrier 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: 40% 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 30m.

How often are flights from Philadelphia to San Antonio delayed?

Historically, on average around 25% of flights between Philadelphia and San Antonio have experienced a delay on any given week. The average delay length over the past 12 months has been 184 minutes.

Which airline has the best punctuality record on Philadelphia to San Antonio flights?

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

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

Flights via Chicago (ORD) offer the lowest average round-trip price of $270.

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 49m.

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 36% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 6 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Philadelphia to San Antonio flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

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 January 2026, 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.

$68 Cheap Flights from Philadelphia to San Antonio in 2026

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Find the cheapest flights from Philadelphia to San Antonio

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Cheap round-trip flights

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5:53 pm - 1:12 pm

PHL

SAT

20h 19m

1 stop

5:04 pm - 1:01 am

SAT

PHL

6h 57m

1 stop

$307Frontier

Thu, Feb 19 - Sun, Feb 22

6:00 am - 11:59 pm

PHL

SAT

18h 59m

2 stops

6:00 am - 7:52 pm

SAT

PHL

12h 52m

2 stops

$309Spirit Airlines

Tue, Mar 3 - Fri, Mar 6

7:30 am - 1:12 pm

PHL

SAT

6h 42m

1 stop

8:53 pm - 7:36 am

SAT

PHL

9h 43m

1 stop

$310Frontier

Thu, Feb 26 - Fri, Mar 6

5:30 am - 4:19 pm

PHL

SAT

11h 49m

1 stop

1:57 pm - 9:49 pm

SAT

PHL

6h 52m

1 stop

$311Frontier

Sun, Feb 15 - Sat, Feb 21

6:08 pm - 9:32 am

PHL

SAT

16h 24m

1 stop

10:27 am - 12:16 am

SAT

PHL

12h 49m

1 stop

$312Spirit Airlines

Sat, Mar 14 - Thu, Mar 19

5:30 am - 4:15 pm

PHL

SAT

11h 45m

1 stop

5:04 pm - 10:27 am

SAT

PHL

16h 23m

1 stop

$314Frontier

Fri, Feb 13 - Mon, Feb 16

6:00 am - 11:59 pm

PHL

SAT

18h 59m

2 stops

10:26 am - 6:51 pm

SAT

PHL

31h 25m

3 stops

$317Spirit Airlines

Tue, Feb 24 - Thu, Feb 26

5:00 am - 9:32 am

PHL

SAT

29h 32m

2 stops

1:22 pm - 12:16 am

SAT

PHL

33h 54m

2 stops

$318Spirit Airlines

Thu, Mar 19 - Sun, Mar 22

5:30 am - 9:30 am

PHL

SAT

29h 00m

3 stops

6:00 am - 8:44 am

SAT

PHL

25h 44m

3 stops

$320Spirit Airlines

Tue, Feb 24 - Fri, Feb 27

8:06 am - 9:30 am

PHL

SAT

26h 24m

1 stop

10:26 am - 8:44 am

SAT

PHL

21h 18m

1 stop

$321Spirit Airlines

Thu, Feb 12 - Thu, Feb 19

Frontier flights from Philadelphia to San Antonio

Our best Frontier deals on Philadelphia to San Antonio flight tickets

Frontier

Feb 19

PHL5:53 pmPhiladelphia

20h 19m

1 stop

SAT1:12 pmSan Antonio

Feb 22

SAT5:04 pmSan Antonio

6h 57m

1 stop

PHL1:01 amPhiladelphia

$307

Frontier

Feb 26

PHL7:30 amPhiladelphia

6h 42m

1 stop

SAT1:12 pmSan Antonio

Mar 6

SAT8:53 pmSan Antonio

9h 43m

1 stop

PHL7:36 amPhiladelphia

$310

Frontier

Feb 15

PHL5:30 amPhiladelphia

11h 49m

1 stop

SAT4:19 pmSan Antonio

Feb 21

SAT1:57 pmSan Antonio

6h 52m

1 stop

PHL9:49 pmPhiladelphia

$311

Spirit Airlines flights from Philadelphia to San Antonio

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

Spirit Airlines

Mar 3

PHL6:00 amPhiladelphia

18h 59m

2 stops

SAT11:59 pmSan Antonio

Mar 6

SAT6:00 amSan Antonio

12h 52m

2 stops

PHL7:52 pmPhiladelphia

$309

Spirit Airlines

Mar 14

PHL6:08 pmPhiladelphia

16h 24m

1 stop

SAT9:32 amSan Antonio

Mar 19

SAT10:27 amSan Antonio

12h 49m

1 stop

PHL12:16 amPhiladelphia

$312

Spirit Airlines

Feb 24

PHL6:00 amPhiladelphia

18h 59m

2 stops

SAT11:59 pmSan Antonio

Feb 26

SAT10:26 amSan Antonio

31h 25m

3 stops

PHL6:51 pmPhiladelphia

$317

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 2/19

5:53 pm-1:12 pm

1 stop20h 19m

San Antonio

Sun 2/22

5:04 pm-1:01 am

1 stop6h 57m

$307

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Tue 3/3

6:00 am-11:59 pm

2 stops18h 59m

San Antonio

Fri 3/6

6:00 am-7:52 pm

2 stops12h 52m

$309

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 2/26

7:30 am-1:12 pm

1 stop6h 42m

San Antonio

Fri 3/6

8:53 pm-7:36 am

1 stop9h 43m

$310

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sun 2/15

5:30 am-4:19 pm

1 stop11h 49m

San Antonio

Sat 2/21

1:57 pm-9:49 pm

1 stop6h 52m

$311

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sat 3/14

6:08 pm-9:32 am

1 stop16h 24m

San Antonio

Thu 3/19

10:27 am-12:16 am

1 stop12h 49m

$312

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 2/13

5:30 am-4:15 pm

1 stop11h 45m

San Antonio

Mon 2/16

5:04 pm-10:27 am

1 stop16h 23m

$314

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Tue 2/24

6:00 am-11:59 pm

2 stops18h 59m

San Antonio

Thu 2/26

10:26 am-6:51 pm

3 stops31h 25m

$317

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 3/19

5:00 am-9:32 am

2 stops29h 32m

San Antonio

Sun 3/22

1:22 pm-12:16 am

2 stops33h 54m

$318

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Tue 2/24

5:30 am-9:30 am

3 stops29h 00m

San Antonio

Fri 2/27

6:00 am-8:44 am

3 stops25h 44m

$320

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 2/12

8:06 am-9:30 am

1 stop26h 24m

San Antonio

Thu 2/19

10:26 am-8:44 am

1 stop21h 18m

$321

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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

Prices

Airlines

Delays

Layovers

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 October instead. Flights to San Antonio in October, while not as cheap as those in April, still average around $403.

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 $394. 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 Monday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Monday is $537.

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 afternoon. momondo users have found flights departing from Philadelphia to San Antonio in the afternoon for as low as $449. 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 $490. 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 $468 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 $281 on momondo.

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

There are 2 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 January 2026, prices for Philadelphia to San Antonio flights are approximately 9% 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	$481
Fastest flight time	4h 09m
Direct flights	Every day
Airports in San Antonio	1 airport

The best flight deal from Philadelphia to San Antonio found on momondo in the last 72 hours is $481

The fastest flight from Philadelphia to San Antonio takes 4h 09m

Direct flights go from Philadelphia to San Antonio every day.

There is 1 airport in San Antonio. From Philadelphia there are direct flights to 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 4h 09m.
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 January 2026, 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 60.00% of the total bookings. Other popular models include Airbus A321neo with 10.00%, Embraer 175 with 10.00%, and Boeing 737 MAX 8 with 5.00%.
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 52% of the total bookings. Other popular airlines include Southwest with 19%, Delta with 13%, and United Airlines with 6%.

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 $127	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $149	Free Cancellation	Rating 6.3 8,394 reviews	Search Spirit Airlines flights
Delta	PriceFrom $271	Free Cancellation	Rating 7.9 8,127 reviews	Search Delta flights
United Airlines	PriceFrom $287	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
American Airlines	PriceFrom $321	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
Southwest	PriceFrom $330	Free Cancellation	Rating 8.0 4,267 reviews	Search Southwest flights

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Boerne

Pleasanton

Schertz

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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.

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Cheap flights from Philadelphia to San Antonio from $68

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 2/23. 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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Frontier flights from Philadelphia to San Antonio

Our best Frontier deals on Philadelphia to San Antonio flight tickets

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See travel insights to San Antonio from

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

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 October instead. Flights to San Antonio in October, while not as cheap as those in April, still average around $403.

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 2 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 January 2026, prices for Philadelphia to San Antonio flights are approximately 9% 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 is the most popular carrier operating from Philadelphia to San Antonio

What airlines fly to San Antonio?

How often are flights from Philadelphia to San Antonio delayed?

Historically, on average around 25% of flights between Philadelphia and San Antonio have experienced a delay on any given week. The average delay length over the past 12 months has been 184 minutes.

What is the most punctual flight time for Philadelphia to San Antonio flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Philadelphia to San Antonio flights?

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

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

Atlanta (ATL) was the most common stop: 40% 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 Chicago (ORD) offer the lowest average round-trip price of $270.

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 30m.

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 49m.

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

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.