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Cheap flights from San Antonio to Philadelphia from $65

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 1/12. 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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Frontier Logo
9:10 am - 8:39 pmSAT-PHL
10h 29m1 stop
Frontier Logo
10:00 pm - 7:55 amPHL-SAT
10h 55m1 stop
$132Frontier
Find Deal
Thu, Dec 4 - Sat, Dec 13
Multiple Airlines Logo
7:37 pm - 9:17 amSAT-PHL
12h 40m1 stop
Multiple Airlines Logo
10:00 pm - 7:55 amPHL-SAT
10h 55m1 stop
$164Multiple Airlines
Find Deal
Wed, Dec 3 - Sat, Dec 13
Multiple Airlines Logo
7:37 pm - 2:58 pmSAT-PHL
18h 21m1 stop
Multiple Airlines Logo
5:45 pm - 11:26 pmPHL-SAT
30h 41m1 stop
$188Multiple Airlines
Find Deal
Wed, Dec 3 - Sun, Dec 14
Multiple Airlines Logo
3:10 pm - 11:34 pmSAT-PHL
7h 24m1 stop
Multiple Airlines Logo
10:00 pm - 7:55 amPHL-SAT
10h 55m1 stop
$189Multiple Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Multiple Airlines Logo
7:37 pm - 2:58 pmSAT-PHL
18h 21m1 stop
Multiple Airlines Logo
5:15 am - 11:26 pmPHL-SAT
19h 11m1 stop
$199Multiple Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 15
Frontier Logo
5:07 pm - 12:30 amSAT-PHL
6h 23m1 stop
Frontier Logo
5:46 am - 4:08 pmPHL-SAT
11h 22m1 stop
$223Frontier
Find Deal
Mon, Nov 24 - Fri, Nov 28
Frontier Logo
7:55 pm - 5:31 amSAT-PHL
8h 36m1 stop
Frontier Logo
5:30 am - 4:51 pmPHL-SAT
12h 21m1 stop
$255Frontier
Find Deal
Fri, Dec 5 - Fri, Dec 12
Spirit Airlines Logo
10:26 am - 11:59 pmSAT-PHL
12h 33m1 stop
Spirit Airlines Logo
6:20 pm - 9:30 amPHL-SAT
16h 10m1 stop
$273Spirit Airlines
Find Deal
Sat, Mar 28 - Mon, Mar 30
Spirit Airlines Logo
3:10 pm - 9:17 amSAT-PHL
17h 07m2 stops
Spirit Airlines Logo
5:30 am - 2:15 pmPHL-SAT
9h 45m1 stop
$291Spirit Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 13
Spirit Airlines Logo
3:10 pm - 11:34 pmSAT-PHL
7h 24m1 stop
Spirit Airlines Logo
5:15 am - 1:00 pmPHL-SAT
32h 45m3 stops
$293Spirit Airlines
Find Deal
Thu, Dec 4 - Sat, Dec 13

Frontier flights from San Antonio to Philadelphia

Our best Frontier deals on San Antonio to Philadelphia flight tickets
Frontier
Dec 4
SAT9:10 amSan Antonio
10h 29m
1 stop
PHL8:39 pmPhiladelphia
Dec 13
PHL10:00 pmPhiladelphia
10h 55m
1 stop
SAT7:55 amSan Antonio
$132
Find similar
Frontier
Nov 15
SAT6:05 pmSan Antonio
12h 25m
1 stop
PHL7:30 amPhiladelphia
Nov 17
PHL5:50 amPhiladelphia
11h 50m
1 stop
SAT4:40 pmSan Antonio
$222
Find similar
Frontier
Nov 24
SAT5:07 pmSan Antonio
6h 23m
1 stop
PHL12:30 amPhiladelphia
Nov 28
PHL5:46 amPhiladelphia
11h 22m
1 stop
SAT4:08 pmSan Antonio
$223
Find similar

Spirit Airlines flights from San Antonio to Philadelphia

Our best Spirit Airlines deals on San Antonio to Philadelphia flight tickets
Spirit Airlines
Mar 28
SAT10:26 amSan Antonio
12h 33m
1 stop
PHL11:59 pmPhiladelphia
Mar 30
PHL6:20 pmPhiladelphia
16h 10m
1 stop
SAT9:30 amSan Antonio
$273
Find similar
Spirit Airlines
Dec 4
SAT3:10 pmSan Antonio
17h 07m
2 stops
PHL9:17 amPhiladelphia
Dec 13
PHL5:30 amPhiladelphia
9h 45m
1 stop
SAT2:15 pmSan Antonio
$291
Find similar
Spirit Airlines
Dec 4
SAT3:10 pmSan Antonio
7h 24m
1 stop
PHL11:34 pmPhiladelphia
Dec 13
PHL5:15 amPhiladelphia
32h 45m
3 stops
SAT1:00 pmSan Antonio
$293
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 November 10, 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

Thu 12/4

9:10 am-8:39 pm

1 stop10h 29m

Philadelphia

Sat 12/13

10:00 pm-7:55 am

1 stop10h 55m

$132

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 12/3

7:37 pm-9:17 am

1 stop12h 40m

Philadelphia

Sat 12/13

10:00 pm-7:55 am

1 stop10h 55m

$164

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 12/3

7:37 pm-2:58 pm

1 stop18h 21m

Philadelphia

Sun 12/14

5:45 pm-11:26 pm

1 stop30h 41m

$188

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 12/6

3:10 pm-11:34 pm

1 stop7h 24m

Philadelphia

Sat 12/13

10:00 pm-7:55 am

1 stop10h 55m

$189

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 12/3

7:37 pm-2:58 pm

1 stop18h 21m

Philadelphia

Mon 12/15

5:15 am-11:26 pm

1 stop19h 11m

$199

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 11/24

5:07 pm-12:30 am

1 stop6h 23m

Philadelphia

Fri 11/28

5:46 am-4:08 pm

1 stop11h 22m

$223

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 12/5

7:55 pm-5:31 am

1 stop8h 36m

Philadelphia

Fri 12/12

5:30 am-4:51 pm

1 stop12h 21m

$255

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 3/28

10:26 am-11:59 pm

1 stop12h 33m

Philadelphia

Mon 3/30

6:20 pm-9:30 am

1 stop16h 10m

$273

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 12/4

3:10 pm-9:17 am

2 stops17h 07m

Philadelphia

Sat 12/13

5:30 am-2:15 pm

1 stop9h 45m

$291

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 12/4

3:10 pm-11:34 pm

1 stop7h 24m

Philadelphia

Sat 12/13

5:15 am-1:00 pm

3 stops32h 45m

$293

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

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 $485. 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 $961.

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 $429 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 $310 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 November 2025, prices for San Antonio to Philadelphia flights are approximately 11% 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

$414

Fastest flight time

3h 44m

Direct flights

Thu and Fri

Airports in Philadelphia

1 airport
The best one-way flight to Philadelphia from San Antonio in the past 72 hours is $414. The best round-trip flight deal from San Antonio to Philadelphia found on momondo in the last 72 hours is $379.
The fastest flight from San Antonio to Philadelphia takes 3h 44m
Direct flights go from San Antonio to Philadelphia on Thursday and Friday. 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 5h 45m, 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
3,111 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $169Free CancellationRating
6.3
8,131 reviews
Search Spirit Airlines flights
DeltaPriceFrom $255Free CancellationRating
7.9
8,004 reviews
Search Delta flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
American AirlinesPriceFrom $313Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
United AirlinesPriceFrom $316Free CancellationRating
7.4
9,011 reviews
Search United 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
Dewey Beach
Newark
Reading
North Wildwood
Dover
Avalon
Lewes
Stone Harbor
Essington
Vineland
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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