HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Philadelphia

$103+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PHL
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Antonio to Philadelphia with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 Friday and return on a Wednesday

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 julio 29, 2025.

Round-trip from

$199
(CheapOair)

One-way from

$103
(Cheapflightsfares)

Popular in

November

Cheapest in

February

Average price

$479

Good round-trip deal

$441 or less

Good one-way deal

$168 or less
From San Antonio to Philadelphia
Search Deals
One-way flight from San Antonio to Philadelphia
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals
Price to beat on a round-trip flight from San Antonio to Philadelphia.
Search Deals
Price to beat on a one-way flight from San Antonio to Philadelphia.
Search Deals

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 julio 29, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. 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.
jue. 10/22:54 pmSAT - PHL
1 stop8h 05mSpirit Airlines
lun. 10/65:30 amPHL - SAT
1 stop9h 19mSpirit Airlines
Deal found 7/29$187
This CheapOair deal was found by Cheapflights users on 7/28. 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.
jue. 9/42:54 pmSAT - PHL
1 stop8h 05mMultiple Airlines
sáb. 9/66:45 amPHL - SAT
1 stop8h 42mMultiple Airlines
Deal found 7/28$217
This Frontier deal was found by Cheapflights users on 7/29. 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.
sáb. 8/96:59 pmSAT - PHL
1 stop9h 10mFrontier
jue. 8/146:15 amPHL - SAT
1 stop13h 58mFrontier
Deal found 7/29$248
This American Airlines deal was found by Cheapflights users on 7/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/238:00 amSAT - PHL
Nonstop3h 43mAmerican Airlines
sáb. 8/306:55 pmPHL - SAT
Nonstop4h 03mAmerican Airlines
Deal found 7/29$277
This Southwest deal was found by Cheapflights users on 7/28. 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.
sáb. 8/238:45 amSAT - PHL
1 stop5h 25mSouthwest
sáb. 8/3012:15 pmPHL - SAT
1 stop6h 50mSouthwest
Deal found 7/28$296

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 julio 29, 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

jue. 9/4

2:54 pm-11:59 pm

1 stop8h 05m

Philadelphia

sáb. 9/6

9:55 pm-1:49 pm

2 stops16h 54m

$199

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

jue. 9/4

2:54 pm-11:59 pm

1 stop8h 05m

Philadelphia

sáb. 9/6

6:45 am-2:27 pm

1 stop8h 42m

$217

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

sáb. 8/9

6:59 pm-5:09 am

1 stop9h 10m

Philadelphia

mar. 8/12

6:15 am-6:02 pm

1 stop12h 47m

$248

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

sáb. 8/23

8:00 am-12:43 pm

Nonstop3h 43m

Philadelphia

sáb. 8/30

6:55 pm-9:58 pm

Nonstop4h 03m

$277

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

sáb. 8/23

8:45 am-3:10 pm

1 stop5h 25m

Philadelphia

sáb. 8/30

12:15 pm-6:05 pm

1 stop6h 50m

$296

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

dom. 9/7

2:54 pm-11:59 pm

1 stop8h 05m

$103

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

sáb. 8/16

6:59 pm-5:09 am

1 stop9h 10m

$114

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

mié. 8/20

8:00 am-12:43 pm

Nonstop3h 43m

$139

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

mar. 9/23

3:40 pm-9:50 pm

1 stop5h 10m

$148

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

sáb. 8/30

5:10 am-11:52 am

1 stop5h 42m

$181

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 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 July 25, 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 julio 29, 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 63% 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 July 27, 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 julio 29, 2025.

The most flights from SAT to PHL are scheduled on a Monday (2 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 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 julio 29, 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
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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
7,977 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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
8,899 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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
8,040 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Crew

8.6

Entertainment

7.5

Food

7.0

Overall

8.0

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 43m for a nonstop flight. There is 1 flight 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 $199. Additional round-trip tickets that might be worth considering are offered by Frontier and American Airlines, with the lowest prices starting at $248 and $277, respectively. 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $103. Frontier flights start at $114 while deals on American Airlines start at $139 one-way.

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

    On average you can expect to pay $394 for a flight from San Antonio to Philadelphia. The cheapest flight overall is $90 while the most popular route, (San Antonio - Philadelphia) is currently priced at $199.

  • 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
Chester
Millville
Reading
Ephrata
Camden
Dewey Beach
Dover
Elkton
Essington
Willow Grove
Newark
Exton
Glen Mills
Springfield

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Antonio to Philadelphia

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to LaGuardia flights
Dallas/Fort Worth to John F Kennedy Intl flights
Dallas/Fort Worth to Newark flights
Hobby to LaGuardia flights
Hobby to John F Kennedy Intl flights
Hobby to Newark flights
George Bush Intcntl to Newark flights
George Bush Intcntl to LaGuardia flights
George Bush Intcntl to John F Kennedy Intl flights
Dallas/Fort Worth to Dulles Intl flights
Austin to John F Kennedy Intl flights
Hobby to Philadelphia flights
Dallas/Fort Worth to Reagan-National flights
Austin to Newark flights
Austin to LaGuardia flights
Dallas/Fort Worth to Philadelphia flights
George Bush Intcntl to Philadelphia flights
Love Field to LaGuardia flights
San Antonio to Newark flights
Hobby to Reagan-National flights
Hobby to Dulles Intl flights
George Bush Intcntl to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
San Antonio to John F Kennedy Intl flights
San Antonio to LaGuardia flights
Dallas/Fort Worth to Pittsburgh flights
Austin to Dulles Intl flights
Love Field to Reagan-National flights
Love Field to Philadelphia flights
Love Field to Dulles Intl flights
Austin to Reagan-National flights
Austin to Philadelphia flights
Hobby to Pittsburgh flights
San Antonio to Reagan-National flights
San Antonio to Dulles Intl flights
George Bush Intcntl to Pittsburgh flights
Love Field to Pittsburgh flights
El Paso to LaGuardia flights
El Paso to John F Kennedy Intl flights
Love Field to John F Kennedy Intl flights
Love Field to Newark flights
Austin to Pittsburgh flights
El Paso to Newark flights
Dallas/Fort Worth to Allentown flights
San Antonio to Pittsburgh flights
Dallas/Fort Worth to Scranton flights
McAllen to Newark flights
Austin to Harrisburg flights
McAllen to LaGuardia flights

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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$259FlexibilityNo cancel feeOn-time65%
FrontierCheapest$133Average$245FlexibilityNo cancel feeOn-time62%
DeltaCheapest$266Average$397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$308Average$479FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$344Average$469FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$396Average$480FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.