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$105+ 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PHL
Jun 8 — Jun 151
Mon 6/8
Mon 6/15
1 adult, Economy
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Find cheap flights from San Antonio to Philadelphia with Cheapflights

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Cheapflights Tip: The best prices from San Antonio to Philadelphia are usually found in April or September, booked 73 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap 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 May 9, 2026.

This Trip.com deal was found by Cheapflights users on 5/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/78:59 pm
SAT
-
PHL
1 stop8h 23m
Frontier
Wed 7/811:06 am
PHL
-
SAT
1 stop10h 08m
Frontier
Deal found 5/9$227
This Trip.com deal was found by Cheapflights users on 5/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Sat 5/3010:40 am
PHL
-
SAT
1 stop10h 34m
Frontier
Deal found 5/8$230
This Booking.com deal was found by Cheapflights users on 5/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Wed 6/38:35 pm
PHL
-
SAT
1 stop23h 24m
Frontier
Deal found 5/5$231
This Trip.com deal was found by Cheapflights users on 5/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Wed 6/38:35 pm
PHL
-
SAT
1 stop23h 24m
Frontier
Deal found 5/6$232
This CheapOair deal was found by Cheapflights users on 5/7. 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.
Mon 6/17:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Mon 6/88:35 pm
PHL
-
SAT
1 stop23h 21m
Frontier
Deal found 5/7$238
This CheapOair deal was found by Cheapflights users on 5/8. 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.
Wed 8/127:51 pm
SAT
-
PHL
1 stop14h 58m
Frontier
Sun 8/1612:44 pm
PHL
-
SAT
1 stop7h 10m
Frontier
Deal found 5/8$240
This Trip.com deal was found by Cheapflights users on 5/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/67:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Sat 6/1311:00 am
PHL
-
SAT
1 stop10h 11m
Frontier
Deal found 5/8$242
This Expedia deal was found by Cheapflights users on 5/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Mon 6/18:35 pm
PHL
-
SAT
1 stop23h 24m
Frontier
Deal found 5/5$244
This Booking.com deal was found by Cheapflights users on 5/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Sat 6/68:35 pm
PHL
-
SAT
1 stop23h 24m
Frontier
Deal found 5/6$245
This Frontier deal was found by Cheapflights users on 5/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/48:56 pm
SAT
-
PHL
1 stop8h 31m
Frontier
Sat 7/1111:06 am
PHL
-
SAT
1 stop10h 08m
Frontier
Deal found 5/9$246
This Priceline deal was found by Cheapflights users on 5/6. 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 7/177:51 pm
SAT
-
PHL
1 stop8h 48m
Frontier
Tue 7/2111:06 am
PHL
-
SAT
1 stop10h 08m
Frontier
Deal found 5/6$250
This Trip.com deal was found by Cheapflights users on 5/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/17:54 pm
SAT
-
PHL
1 stop8h 43m
Frontier
Thu 6/48:35 pm
PHL
-
SAT
1 stop23h 24m
Frontier
Deal found 5/6$252

Find 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 May 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Trip.com)

One-way from

$105
(Frontier)

Popular in

June

Cheapest in

April

Average price

$485

Good round-trip deal

$473 or less

Good one-way deal

$233 or less
Provider with most accurate pricing for San Antonio-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Philadelphia flights.
Search Deals
From San Antonio to Philadelphia
Search Deals
One-way flight from San Antonio to Philadelphia
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($66 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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

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 May 9, 2026.
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

Cheapest round-trip

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 5/29

5:30 pm-12:59 am

1 stop6h 29m

Philadelphia

Mon 6/1

4:59 pm-10:58 pm

1 stop6h 59m

$419

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Thu 7/2

9:37 am-11:44 pm

2 stops13h 07m

Philadelphia

Fri 7/3

10:32 am-10:57 pm

2 stops13h 25m

$429

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 7/4

9:37 am-9:19 pm

2 stops10h 42m

Philadelphia

Sat 7/11

8:05 am-3:39 pm

2 stops8h 34m

$429

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 6/12

9:37 am-11:44 pm

2 stops13h 07m

Philadelphia

Fri 6/19

8:05 am-4:30 pm

1 stop9h 25m

$434

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 5/22

7:54 pm-8:54 am

2 stops36h 00m

Philadelphia

Wed 5/27

8:35 pm-6:59 pm

1 stop23h 24m

$435
Quickest round-trip

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Mon 6/8

5:40 am-12:05 pm

1 stop5h 25m

Philadelphia

Mon 6/15

5:20 pm-11:30 pm

2 stops7h 10m

$504

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Tue 6/30

7:00 am-2:10 pm

1 stop6h 10m

Philadelphia

Tue 7/7

1:31 pm-10:42 pm

2 stops10h 11m

$526

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Sat 5/23

11:40 am-9:35 pm

2 stops8h 55m

Philadelphia

Wed 5/27

6:20 am-5:20 pm

2 stops12h 00m

$529

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Wed 5/20

7:25 am-3:55 pm

2 stops7h 30m

Philadelphia

Fri 5/22

6:35 pm-11:30 pm

1 stop5h 55m

$540

San AntonioPhiladelphia

SAT - PHL

SATPHL

San Antonio

Fri 5/22

7:20 am-3:50 pm

2 stops7h 30m

Philadelphia

Wed 5/27

6:20 am-12:10 pm

2 stops6h 50m

$552

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/9

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from San Antonio to Philadelphia

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Philadelphia in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Philadelphia flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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?

Booking 72 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, April is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $329). Flying from San Antonio to Philadelphia in June is currently the most expensive (average of $531). 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 May 9, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Antonio to Philadelphia as you normally would.

How much does it cost to fly round-trip from San Antonio to Philadelphia?

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 May 9, 2026.
See what other customers who have flown with Southwest,Delta, andUnited 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
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,302 reviews
Southwest
8.0
Very good
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,457 reviews
Southwest
8.0
Very good
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,692 reviews
Southwest
8.0
Very good
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,669 reviews
Southwest
8.0
Very good
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.6
Fair
2,958 reviews
Southwest
8.0
Very good
4,302 reviews

Food

7.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 38m for a nonstop flight. There is 1 flight from San Antonio to Philadelphia per day from 6 airlines.

  • How popular is this San Antonio to Philadelphia flight route?

    The San Antonio to Philadelphia flight path was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from San Antonio to Philadelphia?

    There are many flights that can get you from San Antonio to Philadelphia in 6h 29m. Fly via United Airlines to get the fastest option. The distance between San Antonio and Philadelphia is about 1493 mi.

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

    Flying on Frontier is currently your cheapest option to Philadelphia, with prices starting at $141. Additional round-trip tickets that might be worth considering are offered by United Airlines and Spirit Airlines, with the lowest prices starting at $194 and $204, respectively. These flights start at 67% 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 $85. Frontier flights start at $97 while deals on American Airlines start at $148 one-way.

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

    On average you can expect to pay $476 for a flight from San Antonio to Philadelphia. The cheapest flight overall is $198 while the most popular route, (San Antonio - Philadelphia) is currently priced at $329.

  • 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, April is the cheapest month in which you can book a flight from San Antonio to Philadelphia (average of $329). Flying from San Antonio to Philadelphia in June is currently the most expensive (average of $531). 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
Wildwood
King of Prussia
Reading
Camden
Ocean City
Lewes
Dewey Beach
Pottstown
Vineland
Ephrata
Milford
Dover
Elkton
Essington
Willow Grove
New Castle
Millville
Glen Mills
Chester
Newark

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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 May 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$141Average$222FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$194Average$456FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$204Average$267FlexibilityNo cancel feeOn-time65%
SouthwestCheapest$243Average$437FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$335Average$471FlexibilityNo cancel feeOn-time71%
DeltaCheapest$354Average$466FlexibilityNo cancel feeOn-timeN/A

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