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Cheap flights from San Antonio to Philadelphia from $80

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 10/30. 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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Cheap round-trip flights

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Multiple Airlines Logo
3:23 pm - 4:49 amSAT-PHL
36h 26m2 stops
Multiple Airlines Logo
6:19 am - 2:17 pmPHL-SAT
8h 58m1 stop
$157Multiple Airlines
Find Deal
Tue, Nov 11 - Sat, Nov 15
Frontier Logo
10:04 am - 12:21 amSAT-PHL
37h 17m2 stops
Frontier Logo
6:19 am - 2:17 pmPHL-SAT
8h 58m1 stop
$162Frontier
Find Deal
Mon, Nov 10 - Sat, Nov 15
Multiple Airlines Logo
4:54 pm - 7:30 amSAT-PHL
13h 36m1 stop
Multiple Airlines Logo
6:19 am - 2:17 pmPHL-SAT
8h 58m1 stop
$164Multiple Airlines
Find Deal
Thu, Nov 13 - Sat, Nov 15
Multiple Airlines Logo
7:37 pm - 2:15 pmSAT-PHL
17h 38m1 stop
Multiple Airlines Logo
6:19 am - 2:17 pmPHL-SAT
8h 58m1 stop
$169Multiple Airlines
Find Deal
Tue, Nov 11 - Sat, Nov 15
Spirit Airlines Logo
7:37 pm - 9:30 amSAT-PHL
12h 53m1 stop
Spirit Airlines Logo
6:00 am - 6:32 pmPHL-SAT
13h 32m1 stop
$184Spirit Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Multiple Airlines Logo
4:54 pm - 7:30 amSAT-PHL
13h 36m1 stop
Multiple Airlines Logo
10:32 pm - 9:04 amPHL-SAT
11h 32m1 stop
$194Multiple Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Spirit Airlines Logo
1:55 pm - 11:16 pmSAT-PHL
8h 21m1 stop
Spirit Airlines Logo
5:30 am - 11:50 amPHL-SAT
7h 20m1 stop
$195Spirit Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Spirit Airlines Logo
1:55 pm - 11:16 pmSAT-PHL
8h 21m1 stop
Spirit Airlines Logo
5:30 am - 11:50 amPHL-SAT
7h 20m1 stop
$196Spirit Airlines
Find Deal
Fri, Dec 12 - Sun, Dec 14
Frontier Logo
8:15 pm - 4:49 amSAT-PHL
7h 34m1 stop
Frontier Logo
6:19 am - 7:30 pmPHL-SAT
14h 11m1 stop
$210Frontier
Find Deal
Fri, Oct 31 - Mon, Nov 3
Frontier Logo
8:25 pm - 4:49 amSAT-PHL
7h 24m1 stop
Frontier Logo
5:50 am - 4:40 pmPHL-SAT
11h 50m1 stop
$252Frontier
Find Deal
Fri, Nov 7 - Mon, Nov 10

Spirit Airlines flights from San Antonio to Philadelphia

Our best Spirit Airlines deals on San Antonio to Philadelphia flight tickets
Spirit Airlines
Nov 12
SAT7:37 pmSan Antonio
12h 53m
1 stop
PHL9:30 amPhiladelphia
Nov 19
PHL6:00 amPhiladelphia
13h 32m
1 stop
SAT6:32 pmSan Antonio
$184
Find similar
Spirit Airlines
Dec 4
SAT1:55 pmSan Antonio
8h 21m
1 stop
PHL11:16 pmPhiladelphia
Dec 8
PHL5:30 amPhiladelphia
7h 20m
1 stop
SAT11:50 amSan Antonio
$195
Find similar
Spirit Airlines
Dec 12
SAT1:55 pmSan Antonio
8h 21m
1 stop
PHL11:16 pmPhiladelphia
Dec 14
PHL5:30 amPhiladelphia
7h 20m
1 stop
SAT11:50 amSan Antonio
$196
Find similar

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets
Frontier
Nov 10
SAT10:04 amSan Antonio
37h 17m
2 stops
PHL12:21 amPhiladelphia
Nov 15
PHL6:19 amPhiladelphia
8h 58m
1 stop
SAT2:17 pmSan Antonio
$162
Find similar
Frontier
Oct 31
SAT8:15 pmSan Antonio
7h 34m
1 stop
PHL4:49 amPhiladelphia
Nov 3
PHL6:19 amPhiladelphia
14h 11m
1 stop
SAT7:30 pmSan Antonio
$210
Find similar
Frontier
Oct 24
SAT7:10 pmSan Antonio
18h 15m
1 stop
PHL2:25 pmPhiladelphia
Oct 27
PHL5:05 amPhiladelphia
14h 10m
1 stop
SAT6:15 pmSan Antonio
$230
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 October 16, 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

Tue 11/11

3:23 pm-4:49 am

2 stops36h 26m

Philadelphia

Sat 11/15

6:19 am-2:17 pm

1 stop8h 58m

$157

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 11/10

10:04 am-12:21 am

2 stops37h 17m

Philadelphia

Sat 11/15

6:19 am-2:17 pm

1 stop8h 58m

$162

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 11/13

4:54 pm-7:30 am

1 stop13h 36m

Philadelphia

Sat 11/15

6:19 am-2:17 pm

1 stop8h 58m

$164

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 11/11

7:37 pm-2:15 pm

1 stop17h 38m

Philadelphia

Sat 11/15

6:19 am-2:17 pm

1 stop8h 58m

$169

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 11/12

7:37 pm-9:30 am

1 stop12h 53m

Philadelphia

Wed 11/19

6:00 am-6:32 pm

1 stop13h 32m

$184

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 11/13

4:54 pm-7:30 am

1 stop13h 36m

Philadelphia

Sun 11/16

10:32 pm-9:04 am

1 stop11h 32m

$194

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 12/4

1:55 pm-11:16 pm

1 stop8h 21m

Philadelphia

Mon 12/8

5:30 am-11:50 am

1 stop7h 20m

$195

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 12/12

1:55 pm-11:16 pm

1 stop8h 21m

Philadelphia

Sun 12/14

5:30 am-11:50 am

1 stop7h 20m

$196

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 10/31

8:15 pm-4:49 am

1 stop7h 34m

Philadelphia

Mon 11/3

6:19 am-7:30 pm

1 stop14h 11m

$210

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 11/7

8:25 pm-4:49 am

1 stop7h 24m

Philadelphia

Mon 11/10

5:50 am-4:40 pm

1 stop11h 50m

$252

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 February is another great option to travel to Philadelphia, with average flight prices from San Antonio averaging around $375.

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 $498. 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 $1,284.

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 $1,010.

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 $337 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 October 2025, prices for San Antonio to Philadelphia flights are approximately 29% 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

$198

Fastest flight time

3h 29m

Direct flights

Thu, Fri and Sat

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from San Antonio in the past 72 hours is $198. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $335.
The fastest flight from San Antonio to Philadelphia takes 3h 29m
Direct flights go from San Antonio to Philadelphia on Thursday, Friday and Saturday. The only airline offering direct flights is American Airlines.
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 7h 24m, 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 $157Free CancellationRating
5.8
3,137 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $169Free CancellationRating
6.3
8,098 reviews
Search Spirit Airlines flights
DeltaPriceFrom $255Free CancellationRating
7.9
7,984 reviews
Search Delta flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,241 reviews
Search Southwest flights
American AirlinesPriceFrom $308Free CancellationRating
7.2
11,043 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
8,982 reviews
Search United Airlines flights

  • American Airlines Flights From San Antonio to Philadelphia

    American Airlines flight deals from San Antonio to Philadelphia start from $308 round-trip. Over the 7 American Airlines flights for this route in a normal week, average airfare is usually $455 round-trip - but some users have found much cheaper deals with momondo.

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
Dewey Beach
Cherry Hill
Reading
Newark
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Vineland
Essington
Pottstown
New Castle
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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