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

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

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.

How often are flights from Philadelphia to San Antonio delayed?

Historically, on average around 24% 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 179 minutes.

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.

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 7 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

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

Monday 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.

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 December 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.

$68 Cheap Flights from Philadelphia to San Antonio in 2025/26

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6:00 am - 11:52 pm

PHL

SAT

18h 52m3 stops

6:30 am - 8:47 am

SAT

PHL

25h 17m3 stops

$343Spirit Airlines

Thu, Jan 22 - Sun, Jan 25

8:36 pm - 11:21 am

PHL

SAT

15h 45m1 stop

2:39 pm - 11:14 pm

SAT

PHL

7h 35m1 stop

$344Multiple Airlines

Sun, Jan 4 - Wed, Jan 7

8:59 pm - 9:30 am

PHL

SAT

13h 31m1 stop

10:26 am - 1:01 am

SAT

PHL

13h 35m2 stops

$345Multiple Airlines

Sat, Feb 14 - Mon, Feb 16

8:00 am - 6:16 pm

PHL

SAT

11h 16m1 stop

7:14 pm - 8:37 am

SAT

PHL

12h 23m1 stop

$347Frontier

Mon, Dec 29 - Sun, Jan 11

5:30 am - 5:23 pm

PHL

SAT

12h 53m1 stop

8:59 am - 8:25 pm

SAT

PHL

10h 26m1 stop

$351Frontier

Fri, Jan 16 - Sun, Jan 18

6:00 am - 6:16 pm

PHL

SAT

13h 16m1 stop

5:56 pm - 12:41 am

SAT

PHL

5h 45m1 stop

$362Frontier

Mon, Dec 29 - Mon, Jan 5

6:00 am - 11:52 pm

PHL

SAT

18h 52m2 stops

6:30 am - 8:01 pm

SAT

PHL

12h 31m2 stops

$365Spirit Airlines

Fri, Jan 9 - Sun, Jan 11

5:10 am - 5:01 pm

PHL

SAT

12h 51m1 stop

6:30 am - 4:49 pm

SAT

PHL

9h 19m2 stops

$366Multiple Airlines

Fri, Jan 2 - Tue, Jan 13

1:06 pm - 9:30 am

PHL

SAT

21h 24m1 stop

10:26 am - 10:59 pm

SAT

PHL

11h 33m1 stop

$367Multiple Airlines

Tue, Mar 10 - Fri, Mar 13

1:35 pm - 11:26 pm

PHL

SAT

10h 51m1 stop

7:14 pm - 8:37 am

SAT

PHL

12h 23m1 stop

$368Multiple Airlines

Thu, Jan 1 - Sun, Jan 11

Spirit Airlines flights from Philadelphia to San Antonio

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

Spirit Airlines

Jan 22

PHL6:00 amPhiladelphia

18h 52m

3 stops

SAT11:52 pmSan Antonio

Jan 25

SAT6:30 amSan Antonio

25h 17m

3 stops

PHL8:47 amPhiladelphia

$343

Find similar

Spirit Airlines

Jan 9

PHL6:00 amPhiladelphia

18h 52m

2 stops

SAT11:52 pmSan Antonio

Jan 11

SAT6:30 amSan Antonio

12h 31m

2 stops

PHL8:01 pmPhiladelphia

$365

Find similar

Spirit Airlines

Dec 30

PHL8:54 pmPhiladelphia

15h 56m

2 stops

SAT11:50 amSan Antonio

Jan 1

SAT12:45 pmSan Antonio

10h 11m

1 stop

PHL11:56 pmPhiladelphia

$394

Find similar

Frontier flights from Philadelphia to San Antonio

Our best Frontier deals on Philadelphia to San Antonio flight tickets

Frontier

Dec 29

PHL8:00 amPhiladelphia

11h 16m

1 stop

SAT6:16 pmSan Antonio

Jan 11

SAT7:14 pmSan Antonio

12h 23m

1 stop

PHL8:37 amPhiladelphia

$347

Find similar

Frontier

Jan 16

PHL5:30 amPhiladelphia

12h 53m

1 stop

SAT5:23 pmSan Antonio

Jan 18

SAT8:59 amSan Antonio

10h 26m

1 stop

PHL8:25 pmPhiladelphia

$351

Find similar

Frontier

Dec 29

PHL6:00 amPhiladelphia

13h 16m

1 stop

SAT6:16 pmSan Antonio

Jan 5

SAT5:56 pmSan Antonio

5h 45m

1 stop

PHL12:41 amPhiladelphia

$362

Find similar

momondo Fare Finder

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

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Fly to

Route

Depart

Return

Price

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 1/22

6:00 am-11:52 pm

3 stops18h 52m

San Antonio

Sun 1/25

6:30 am-8:47 am

3 stops25h 17m

$343

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sun 1/4

8:36 pm-11:21 am

1 stop15h 45m

San Antonio

Wed 1/7

2:39 pm-11:14 pm

1 stop7h 35m

$344

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Sat 2/14

8:59 pm-9:30 am

1 stop13h 31m

San Antonio

Mon 2/16

10:26 am-1:01 am

2 stops13h 35m

$345

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Mon 12/29

8:00 am-6:16 pm

1 stop11h 16m

San Antonio

Sun 1/11

7:14 pm-8:37 am

1 stop12h 23m

$347

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 1/16

5:30 am-5:23 pm

1 stop12h 53m

San Antonio

Sun 1/18

8:59 am-8:25 pm

1 stop10h 26m

$351

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Mon 12/29

6:00 am-6:16 pm

1 stop13h 16m

San Antonio

Mon 1/5

5:56 pm-12:41 am

1 stop5h 45m

$362

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 1/9

6:00 am-11:52 pm

2 stops18h 52m

San Antonio

Sun 1/11

6:30 am-8:01 pm

2 stops12h 31m

$365

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Fri 1/2

5:10 am-5:01 pm

1 stop12h 51m

San Antonio

Tue 1/13

6:30 am-4:49 pm

2 stops9h 19m

$366

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Tue 3/10

1:06 pm-9:30 am

1 stop21h 24m

San Antonio

Fri 3/13

10:26 am-10:59 pm

1 stop11h 33m

$367

PhiladelphiaSan Antonio

PHL - SAT

PHLSAT

Philadelphia

Thu 1/1

1:35 pm-11:26 pm

1 stop10h 51m

San Antonio

Sun 1/11

7:14 pm-8:37 am

1 stop12h 23m

$368

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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

Other information

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 Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $550.

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 $483. 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 $462 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 December 2025, prices for Philadelphia to San Antonio flights are approximately 151% 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

Fastest flight time	5h 43m
Direct flights	Mon, Tue, Wed, Thu, Sat and Sun
Airports in San Antonio	1 airport

The fastest flight from Philadelphia to San Antonio takes 5h 43m

Direct flights go from Philadelphia to San Antonio on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.

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 5h 43m.
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 December 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 75.61% of the total bookings. Other popular models include Airbus A321neo with 4.88%, Embraer 175 with 4.88%, and Boeing 737-800 with 4.88%.
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 18%, 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 $127	Free Cancellation	Rating 5.8 3,081 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $189	Free Cancellation	Rating 6.3 8,190 reviews	Search Spirit Airlines flights
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
United Airlines	PriceFrom $318	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
American Airlines	PriceFrom $320	Free Cancellation	Rating 7.2 11,055 reviews	Search American Airlines flights
Southwest	PriceFrom $336	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

United Airlines Flights From Philadelphia to San Antonio
United Airlines is one of the most popular airlines flying from Philadelphia to San Antonio, operating 1 flight/week on average for this route. A good United Airlines flight deal for Philadelphia to San Antonio starts from $318 round-trip, up to an average price of $490. Our users have rated United Airlines at 7.4/10.

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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.

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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 1/14. 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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Spirit Airlines flights from Philadelphia to San Antonio

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

Frontier flights from Philadelphia to San Antonio

Our best Frontier 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.

See travel insights to San Antonio from

How to get the cheapest flight ticket from Philadelphia to 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 December 2025, prices for Philadelphia to San Antonio flights are approximately 151% 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 24% 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 179 minutes.

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

Generally, flights departing at night 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?

Monday 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

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

United 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