$59+ Cheap flights from Philadelphia to San Antonio (PHL - SAT)
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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Philadelphia to San Antonio 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 Philadelphia to San Antonio are usually found in April or October, booked 83 days in advance, depart on a Saturday or Wednesday and return on a Saturday
Cheap flight deals from Philadelphia to San Antonio
Cheapest flights from Philadelphia to San AntonioExplore the most affordable flight options available from Philadelphia to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
Explore the most affordable flight options available from Philadelphia to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 4, 2025.
This Mytrip deal was found by Cheapflights users on 12/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 12/4. 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.
This Booking.com deal was found by Cheapflights users on 12/2. 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.
This Cheapflightsfares deal was found by Cheapflights users on 12/2. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Booking.com deal was found by Cheapflights users on 12/3. 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.
This CheapOair deal was found by Cheapflights users on 12/2. 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.
This Frontier deal was found by Cheapflights users on 12/2. 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.
This CheapOair deal was found by Cheapflights users on 12/2. 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.
This Frontier deal was found by Cheapflights users on 12/2. 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.
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Frontier deal was found by Cheapflights users on 12/3. 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.
Find flight deals from Philadelphia to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Antonio (SAT). 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 December 4, 2025.
Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $256 (Mytrip) |
One-way from | $59 (Kiwi.com) |
Popular in | November |
Cheapest in | April |
Average price | $467 |
Cheapflights Fare Finder
Use the filters below to find and compare flights from Philadelphia to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Mon 1/26
6:51 pm-12:38 am
1 stop6h 47m
San Antonio
Thu 1/29
6:17 pm-12:21 am
1 stop5h 04m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Tue 3/3
5:11 pm-3:14 pm
2 stops23h 03m
San Antonio
Mon 3/9
5:56 pm-11:18 am
1 stop16h 22m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Tue 1/6
6:00 am-5:37 am
3 stops24h 37m
San Antonio
Sat 1/10
6:30 am-8:01 pm
2 stops12h 31m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 1/8
8:20 am-11:52 pm
2 stops16h 32m
San Antonio
Sun 1/11
6:30 am-8:47 am
2 stops25h 17m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 4/9
8:36 pm-12:17 am
1 stop28h 41m
San Antonio
Sun 4/12
6:45 am-5:31 am
1 stop21h 46m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Fri 3/20
1:00 pm-9:22 am
1 stop21h 22m
San Antonio
Wed 3/25
10:26 am-7:55 pm
1 stop8h 29m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Wed 4/8
5:16 pm-10:50 pm
1 stop6h 34m
San Antonio
Mon 4/13
10:26 am-11:58 pm
1 stop12h 32m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Fri 2/13
6:40 am-9:18 am
1 stop27h 38m
San Antonio
Tue 2/17
6:00 am-10:58 pm
2 stops15h 58m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sat 2/14
10:30 am-4:58 pm
1 stop7h 28m
San Antonio
Tue 2/17
2:33 pm-11:44 pm
1 stop8h 11m
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Wed 2/11
10:30 am-5:22 pm
1 stop7h 52m
San Antonio
Sun 2/15
5:25 am-11:43 am
1 stop5h 18m
Compare providers for flights from Philadelphia to San Antonio
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 Philadelphia to San Antonio in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Philadelphia-San Antonio flights, users find the pricing of Justfly.com to be most consistent on Cheapflights vs. Justfly.com Users can find the same prices on Philadelphia-San Antonio flight deals on Cheapflights vs. Justfly.com >95% of the time. Price accuracy is based on data collected from Philadelphia-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-San Antonio flights, Cheapflights users trust Justfly.com the most. Justfly.com 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 Philadelphia-San Antonio 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 Philadelphia to San Antonio
Have a flexible travel schedule? Discover the best time to fly to San Antonio from Philadelphia with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Philadelphia to San Antonio
How far ahead should I book a flight from Philadelphia to San Antonio?
The best time to book flights from Philadelphia to San Antonio is 83 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Philadelphia to San Antonio?
Currently, January is the cheapest month in which you can book a flight from Philadelphia to San Antonio (average of $98). Flying from Philadelphia to San Antonio in February is currently the most expensive (average of $163). 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 PHL to SAT?
One of the essential ways to save on airfare from Philadelphia to San Antonio is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 26% on airfare.
What is the cheapest day to fly from Philadelphia to San Antonio?
Travelers seeking maximum savings on their Philadelphia to San Antonio flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
How often are flights from Philadelphia to San Antonio delayed?
About 24% of weekly flights between Philadelphia and San Antonio have experienced delays in the past year, with the average delay time being 179 minutes.
What is the most punctual flight time for Philadelphia to San Antonio flights?
Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Philadelphia to San Antonio flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 25% of flights being delayed.
What’s the top layover airport for flights from Philadelphia to San Antonio?
Houston (IAH) – chosen by Cheapflights users on 67% of 1-stop itineraries from Philadelphia to San Antonio on Cheapflights.
What’s the cheapest layover airport for flights from Philadelphia to San Antonio?
Orlando (MCO) is the most affordable 1-stop option, with an average round-trip price of $250.
What’s the fastest layover option from Philadelphia to San Antonio?
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 5h 56m.
Which airport typically offers the quickest layover for flights from Philadelphia to San Antonio?
Flights via Houston (IAH) offer the fastest connection on this route, with an average layover time of 1h 01m.
Reviews of airlines servicing San Antonio
Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated December 4, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Philadelphia to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Overall
Food
Boarding
Crew
Comfort
Entertainment
Reviews
Thomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to San Antonio. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Philadelphia to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Philadelphia to San Antonio
Discover the top 6 airlines that operate flights from Philadelphia to San Antonio. 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 December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$126 | Average$219 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$189 | Average$272 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$276 | Average$445 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$310 | Average$489 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$319 | Average$491 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$337 | Average$461 | FlexibilityNo cancel fee | On-time63% |