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Cheap flights from San Antonio to Philadelphia from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Philadelphia departing on 2/6. 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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0 bags

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Find the cheapest flights from San Antonio to Philadelphia

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:13 pm - 12:52 am
SAT
-
PHL
5h 39m1 stop
Frontier Logo
5:30 am - 5:03 pm
PHL
-
SAT
12h 33m1 stop
$128Frontier
Fri, Jan 23 - Sun, Jan 25
Frontier Logo
6:13 pm - 12:52 am
SAT
-
PHL
5h 39m1 stop
Frontier Logo
5:30 am - 5:03 pm
PHL
-
SAT
12h 33m1 stop
$129Frontier
Fri, Jan 23 - Sun, Jan 25
Frontier Logo
10:13 am - 3:29 pm
SAT
-
PHL
28h 16m1 stop
Frontier Logo
4:21 pm - 2:07 pm
PHL
-
SAT
22h 46m1 stop
$156Frontier
Thu, Feb 19 - Sun, Feb 22
Multiple Airlines Logo
10:35 am - 8:01 pm
SAT
-
PHL
8h 26m1 stop
Multiple Airlines Logo
5:30 am - 5:03 pm
PHL
-
SAT
12h 33m1 stop
$162Multiple Airlines
Sat, Jan 24 - Mon, Jan 26
Multiple Airlines Logo
2:39 pm - 11:14 pm
SAT
-
PHL
7h 35m1 stop
Multiple Airlines Logo
6:00 am - 7:03 pm
PHL
-
SAT
14h 03m1 stop
$170Multiple Airlines
Wed, Jan 7 - Mon, Jan 12
Multiple Airlines Logo
6:30 am - 8:01 pm
SAT
-
PHL
12h 31m2 stops
Multiple Airlines Logo
5:30 am - 5:03 pm
PHL
-
SAT
12h 33m1 stop
$172Multiple Airlines
Sat, Jan 24 - Mon, Jan 26
Multiple Airlines Logo
10:35 am - 11:59 pm
SAT
-
PHL
12h 24m1 stop
Multiple Airlines Logo
6:11 pm - 9:40 am
PHL
-
SAT
16h 29m1 stop
$178Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
2:39 pm - 8:47 am
SAT
-
PHL
17h 08m1 stop
Multiple Airlines Logo
4:08 pm - 11:52 pm
PHL
-
SAT
8h 44m1 stop
$186Multiple Airlines
Wed, Jan 7 - Tue, Jan 13
Multiple Airlines Logo
10:35 am - 11:59 pm
SAT
-
PHL
12h 24m1 stop
Multiple Airlines Logo
7:04 pm - 9:40 am
PHL
-
SAT
15h 36m2 stops
$187Multiple Airlines
Fri, Jan 23 - Fri, Jan 30
Multiple Airlines Logo
2:39 pm - 8:47 am
SAT
-
PHL
17h 08m1 stop
Multiple Airlines Logo
8:20 am - 7:03 pm
PHL
-
SAT
11h 43m2 stops
$189Multiple Airlines
Wed, Jan 7 - Mon, Jan 12

Spirit Airlines flights from San Antonio to Philadelphia

Our best Spirit Airlines deals on San Antonio to Philadelphia flight tickets
Spirit Airlines
Jan 7
SAT2:39 pmSan Antonio
17h 08m
1 stop
PHL8:47 amPhiladelphia
Jan 9
PHL6:11 pmPhiladelphia
16h 29m
1 stop
SAT9:40 amSan Antonio
$179
Find similar
Spirit Airlines
Dec 31
SAT2:39 pmSan Antonio
7h 38m
1 stop
PHL11:17 pmPhiladelphia
Jan 7
PHL8:54 pmPhiladelphia
13h 46m
1 stop
SAT9:40 amSan Antonio
$195
Find similar
Spirit Airlines
Dec 25
SAT11:30 amSan Antonio
10h 47m
1 stop
PHL11:17 pmPhiladelphia
Jan 7
PHL8:54 pmPhiladelphia
13h 46m
1 stop
SAT9:40 amSan Antonio
$202
Find similar

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets
Frontier
Jan 23
SAT6:13 pmSan Antonio
5h 39m
1 stop
PHL12:52 amPhiladelphia
Jan 25
PHL5:30 amPhiladelphia
12h 33m
1 stop
SAT5:03 pmSan Antonio
$128
Find similar
Frontier
Jan 23
SAT6:13 pmSan Antonio
5h 39m
1 stop
PHL12:52 amPhiladelphia
Jan 25
PHL5:30 amPhiladelphia
12h 33m
1 stop
SAT5:03 pmSan Antonio
$129
Find similar
Frontier
Feb 19
SAT10:13 amSan Antonio
28h 16m
1 stop
PHL3:29 pmPhiladelphia
Feb 22
PHL4:21 pmPhiladelphia
22h 46m
1 stop
SAT2:07 pmSan Antonio
$156
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated December 9, 2025.
Use the filters below to find and compare flights from San Antonio to Philadelphia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 1/23

6:13 pm-12:52 am

1 stop5h 39m

Philadelphia

Sun 1/25

5:30 am-5:03 pm

1 stop12h 33m

$128

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 1/23

6:13 pm-12:52 am

1 stop5h 39m

Philadelphia

Sun 1/25

5:30 am-5:03 pm

1 stop12h 33m

$129

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 2/19

10:13 am-3:29 pm

1 stop28h 16m

Philadelphia

Sun 2/22

4:21 pm-2:07 pm

1 stop22h 46m

$156

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 1/24

10:35 am-8:01 pm

1 stop8h 26m

Philadelphia

Mon 1/26

5:30 am-5:03 pm

1 stop12h 33m

$162

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/7

2:39 pm-11:14 pm

1 stop7h 35m

Philadelphia

Mon 1/12

6:00 am-7:03 pm

1 stop14h 03m

$170

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 1/24

6:30 am-8:01 pm

2 stops12h 31m

Philadelphia

Mon 1/26

5:30 am-5:03 pm

1 stop12h 33m

$172

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 1/23

10:35 am-11:59 pm

1 stop12h 24m

Philadelphia

Fri 1/30

6:11 pm-9:40 am

1 stop16h 29m

$178

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/7

2:39 pm-8:47 am

1 stop17h 08m

Philadelphia

Tue 1/13

4:08 pm-11:52 pm

1 stop8h 44m

$186

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 1/23

10:35 am-11:59 pm

1 stop12h 24m

Philadelphia

Fri 1/30

7:04 pm-9:40 am

2 stops15h 36m

$187

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 1/7

2:39 pm-8:47 am

1 stop17h 08m

Philadelphia

Mon 1/12

8:20 am-7:03 pm

2 stops11h 43m

$189

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Philadelphia from

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

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 December is another great option to travel to Philadelphia, with average flight prices from San Antonio averaging around $377.

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 $1,273.

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 evening. momondo users have found flights departing from San Antonio to Philadelphia in the evening for as low as $280. 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 $1,000.

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 $431 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 3 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 December 2025, prices for San Antonio to Philadelphia flights are approximately 35% 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

Fastest flight time

5h 21m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Philadelphia

1 airport
The fastest flight from San Antonio to Philadelphia takes 5h 21m
Direct flights go from San Antonio to Philadelphia on Monday, Wednesday, Friday, Saturday and Sunday. There are no airlines offering direct flights.
There is 1 airport near Philadelphia: 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 5h 39m, 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?

  • 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?

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

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
FrontierPriceFrom $142Free CancellationRating
5.8
3,085 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $169Free CancellationRating
6.3
8,171 reviews
Search Spirit Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
8,011 reviews
Search Delta flights
SouthwestPriceFrom $296Free CancellationRating
7.9
4,252 reviews
Search Southwest flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,089 reviews
Search United Airlines flights
American AirlinesPriceFrom $338Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Wildwood
Cape May
Rehoboth Beach
Ocean City
Wildwood Crest
King of Prussia
Cherry Hill
Newark
Dewey Beach
Reading
North Wildwood
Avalon
Dover
Lewes
Stone Harbor
Essington
Vineland
Pottstown
Elkton
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.

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