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$88+ Cheap flights from San Antonio to Philadelphia (SAT - PHL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PHL
Aug 16 — Aug 231
Sat 8/16
Sat 8/23
1 adult, Economy
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Cheapflights Tip: The best prices from San Antonio to Philadelphia are usually found in February or January, booked 70 days in advance, depart on a Wednesday or Thursday and return on a Saturday

Cheap flight deals from San Antonio to Philadelphia

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 11, 2025.

Round-trip from

$197
(FlightHub)

One-way from

$88
(Southwest)

Popular in

November

Cheapest in

February

Average price

$470

Good round-trip deal

$401 or less

Good one-way deal

$186 or less
From San Antonio to Philadelphia
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One-way flight from San Antonio to Philadelphia
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Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from San Antonio to Philadelphia.
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Price to beat on a one-way flight from San Antonio to Philadelphia.
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Find flight deals from San Antonio to Philadelphia

Cheapest flights from San Antonio to Philadelphia
Explore the most affordable flight options available from San Antonio to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2025.

This FlightHub deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/312:45 pmSAT - PHL
1 stop10h 14mSpirit Airlines
Mon 10/65:30 amPHL - SAT
1 stop7h 10mSpirit Airlines
Deal found 8/9$197
This Priceline deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/512:45 pmSAT - PHL
1 stop10h 14mSpirit Airlines
Mon 9/85:30 amPHL - SAT
1 stop7h 10mSpirit Airlines
Deal found 8/10$199
This CheapOair deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/211:33 amSAT - PHL
1 stop12h 24mFrontier
Sat 10/46:45 amPHL - SAT
1 stop8h 42mFrontier
Deal found 8/10$224
This Orbitz deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:33 amSAT - PHL
2 stops8h 59mMultiple Airlines
Mon 9/85:30 amPHL - SAT
1 stop7h 10mMultiple Airlines
Deal found 8/9$240
This Southwest deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/292:10 pmSAT - PHL
1 stop7h 55mSouthwest
Tue 9/306:30 amPHL - SAT
1 stop5h 40mSouthwest
Deal found 8/9$243
This Frontier deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/135:45 pmSAT - PHL
1 stop6h 09mFrontier
Mon 11/36:19 amPHL - SAT
1 stop8h 40mFrontier
Deal found 8/10$244
This Justfly.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/163:06 pmSAT - PHL
1 stop13h 50mMultiple Airlines
Sat 8/235:05 amPHL - SAT
1 stop11h 39mMultiple Airlines
Deal found 8/9$245
This CheapOair deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:38 pmSAT - PHL
1 stop5h 57mFrontier
Mon 8/185:30 amPHL - SAT
1 stop12h 22mFrontier
Deal found 8/10$247
This CheapOair deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/155:38 pmSAT - PHL
1 stop5h 57mFrontier
Sun 8/1710:29 pmPHL - SAT
1 stop10h 36mFrontier
Deal found 8/9$252
This Frontier deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/93:32 pmSAT - PHL
1 stop12h 47mFrontier
Mon 11/35:30 amPHL - SAT
1 stop12h 10mFrontier
Deal found 8/10$254

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
Use the filters below to find and compare flights from San Antonio to Philadelphia that are best for you.

Fly from

San Antonio

Fly to

Philadelphia

Route

Depart

Return

Price

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 10/3

12:45 pm-11:59 pm

1 stop10h 14m

Philadelphia

Mon 10/6

5:30 am-11:40 am

1 stop7h 10m

$197

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 9/5

12:45 pm-11:59 pm

1 stop10h 14m

Philadelphia

Mon 9/8

5:30 am-11:40 am

1 stop7h 10m

$199

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 10/2

11:33 am-12:57 am

1 stop12h 24m

Philadelphia

Sat 10/4

6:45 am-2:27 pm

1 stop8h 42m

$224

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 9/4

11:33 am-9:32 pm

2 stops8h 59m

Philadelphia

Mon 9/8

5:30 am-11:40 am

1 stop7h 10m

$240

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 9/29

2:10 pm-11:05 pm

1 stop7h 55m

Philadelphia

Tue 9/30

6:30 am-11:10 am

1 stop5h 40m

$243

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 10/13

5:45 pm-12:54 am

1 stop6h 09m

Philadelphia

Thu 11/6

6:19 am-1:59 pm

1 stop8h 40m

$244

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 8/16

3:06 pm-5:56 am

1 stop13h 50m

Philadelphia

Sat 8/23

5:05 am-3:44 pm

1 stop11h 39m

$245

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 8/15

5:38 pm-12:35 am

1 stop5h 57m

Philadelphia

Mon 8/18

5:30 am-4:52 pm

1 stop12h 22m

$247

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 8/15

5:38 pm-12:35 am

1 stop5h 57m

Philadelphia

Sun 8/17

10:29 pm-8:05 am

1 stop10h 36m

$252

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 10/9

3:32 pm-5:19 am

1 stop12h 47m

Philadelphia

Mon 11/3

5:30 am-4:40 pm

1 stop12h 10m

$254

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/9

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Antonio to Philadelphia

Have a flexible travel schedule? Discover the best time to fly to Philadelphia from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Philadelphia

How far ahead should I book a flight from San Antonio to Philadelphia?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Philadelphia. Price data was last updated on August 8, 2025.

Booking 70 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Antonio to Philadelphia. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Antonio to Philadelphia?

Currently, August is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $236). Flying from San Antonio to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to PHL?

Find hourly flight availability from San Antonio to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 11, 2025.

A simple way to save on the total cost of your ticket is to fly from San Antonio to Philadelphia in the evening. If you’re flexible enough to do this you can expect to save up to 65% on your trip compared to booking a flight at noon.

What is the cheapest day to fly from San Antonio to Philadelphia?

Use this chart to determine the cheapest time to fly round-trip from San Antonio to Philadelphia. Price data was last updated on August 3, 2025.

Travelers seeking maximum savings on their San Antonio to Philadelphia flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Antonio to Philadelphia

Explore weekly flight availability from San Antonio to Philadelphia. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 11, 2025.

The most flights from SAT to PHL are scheduled on a Monday (2 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Philadelphia

Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated August 11, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from San Antonio to Philadelphia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,979 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,920 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,042 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from San Antonio to Philadelphia?

    If you book a flight from San Antonio to Philadelphia, you will be flying from San Antonio to Philadelphia. Flights to Philadelphia (PHL) from San Antonio (SAT) take 3h 29m for a nonstop flight. There are 2 flights from San Antonio to Philadelphia per day from 6 airlines.

  • What are the cheapest airlines flying from San Antonio to Philadelphia round-trip?

    Flying on Spirit Airlines is currently your cheapest option to Philadelphia, with prices starting at $197. Another option worth looking into is Frontier, starting at $224 round trip. These flights start at 55% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from San Antonio to Philadelphia one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $88. Spirit Airlines flights start at $98 while deals on Frontier start at $110 one-way.

  • What are the cheapest flights from San Antonio to Philadelphia?

    On average you can expect to pay $413 for a flight from San Antonio to Philadelphia. The cheapest flight overall is $139 while the most popular route, (San Antonio - Philadelphia) is currently priced at $197.

  • Can I find deals for flights from San Antonio to Philadelphia that include hotel bookings?

    Yes. In addition to deals on San Antonio to Philadelphia flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Philadelphia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Philadelphia.

  • Can I find deals for business class flights from San Antonio to Philadelphia?

    Yes. Cheapflights offers flight deals from San Antonio to Philadelphia by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Philadelphia?

    Currently, August is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $236). Flying from San Antonio to Philadelphia in March is currently the most expensive (average of $295). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Philadelphia?

Book flights to Philadelphia if you plan to visit one of these locations
Vineland
Wildwood
King of Prussia
Pottstown
Cherry Hill
Ocean City
Reading
Millville
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Chester
Exton
Glen Mills
Springfield

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Alternative routes for San Antonio to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from San Antonio to Philadelphia

Discover the top 6 airlines that operate flights from San Antonio to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$258FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$149Average$259FlexibilityNo cancel feeOn-time65%
DeltaCheapest$266Average$401FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$309Average$483FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$344Average$467FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$396Average$480FlexibilityNo cancel feeOn-time69%

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