$67+ 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 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAT
Feb 25 — Mar 41
1 adult, Economy
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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 January 26, 2026.
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 January 26, 2026.
This Expedia deal was found by Cheapflights users on 1/24. 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 3/198:25 pm
PHL
- SAT
1 stop28h 52m
Frontier
Sun 3/226:45 am
SAT
- PHL
1 stop21h 46m
Frontier
Deal found 1/24![Frontier logo]()
$309
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Mon 2/96:18 pm
PHL
- SAT
3 stops30h 34m
Spirit Airlines
Thu 2/126:00 am
SAT
- PHL
2 stops12h 52m
Spirit Airlines
Deal found 1/26![Spirit Airlines logo]()
$310
This CheapOair deal was found by Cheapflights users on 1/24. 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.
Sat 3/75:05 am
PHL
- SAT
1 stop9h 18m
Multiple Airlines
Sat 3/1410:27 am
SAT
- PHL
2 stops11h 25m
Multiple Airlines
Deal found 1/24![Multiple Airlines logo]()
$311
This CheapOair deal was found by Cheapflights users on 1/26. 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.
Sun 3/15:26 pm
PHL
- SAT
2 stops31h 33m
Spirit Airlines
Sun 3/810:26 am
SAT
- PHL
1 stop21h 18m
Spirit Airlines
Deal found 1/26![Spirit Airlines logo]()
$312
This CheapOair deal was found by Cheapflights users on 1/26. 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.
Sun 5/35:57 pm
PHL
- SAT
1 stop16h 33m
Spirit Airlines
Thu 5/710:26 am
SAT
- PHL
2 stops29h 10m
Spirit Airlines
Deal found 1/26![Spirit Airlines logo]()
$313
This CheapOair deal was found by Cheapflights users on 1/25. 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 3/266:21 am
PHL
- SAT
1 stop28h 11m
Spirit Airlines
Sun 3/2910:27 am
SAT
- PHL
1 stop21h 12m
Spirit Airlines
Deal found 1/25![Spirit Airlines logo]()
$314
This CheapOair deal was found by Cheapflights users on 1/24. 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 2/196:00 am
PHL
- SAT
2 stops18h 59m
Spirit Airlines
Sun 2/2210:26 am
SAT
- PHL
2 stops35h 50m
Spirit Airlines
Deal found 1/24![Spirit Airlines logo]()
$315
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Sun 3/85:26 pm
PHL
- SAT
3 stops31h 33m
Spirit Airlines
Wed 3/116:00 am
SAT
- PHL
2 stops16h 50m
Spirit Airlines
Deal found 1/26![Spirit Airlines logo]()
$316
This CheapOair deal was found by Cheapflights users on 1/24. 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.
Sun 2/18:20 am
PHL
- SAT
2 stops16h 32m
Spirit Airlines
Sat 2/286:00 am
SAT
- PHL
2 stops16h 50m
Spirit Airlines
Deal found 1/24![Spirit Airlines logo]()
$319
This Mytrip deal was found by Cheapflights users on 1/25. 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.
Fri 3/206:08 pm
PHL
- SAT
1 stop16h 24m
Spirit Airlines
Wed 3/251:22 pm
SAT
- PHL
3 stops29h 18m
Spirit Airlines
Deal found 1/25![Spirit Airlines logo]()
$320
This CheapOair deal was found by Cheapflights users on 1/25. 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 3/196:08 pm
PHL
- SAT
1 stop16h 24m
Spirit Airlines
Sun 3/2210:27 am
SAT
- PHL
1 stop21h 12m
Spirit Airlines
Deal found 1/25![Spirit Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Thu 2/123:02 pm
PHL
- SAT
2 stops33h 57m
Multiple Airlines
Sun 2/155:04 pm
SAT
- PHL
1 stop6h 57m
Multiple Airlines
Deal found 1/25![Multiple Airlines logo]()
$322
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 January 26, 2026.
Most accurate provider | Justfly.com 3 stars |
|---|---|
Most trusted provider | Justfly.com 3 stars |
Round-trip from | $309 (Expedia) |
One-way from | $67 (Trip.com) |
Popular in | January |
Cheapest in | April |
Average price | $558 |
Good round-trip deal | $481 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to San Antonio 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 January 26, 2026.
Use the filters below to find and compare flights from Philadelphia to San Antonio that are best for you.
Fly from
Philadelphia
Fly to
San Antonio
Route
Depart
Return
Price
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sat 3/7
5:05 am-1:23 pm
1 stop9h 18m
San Antonio
Sat 3/14
10:27 am-10:52 pm
2 stops11h 25m
$311
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 2/12
3:02 pm-11:59 pm
2 stops33h 57m
San Antonio
Sun 2/15
5:04 pm-1:01 am
1 stop6h 57m
$322
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 2/19
6:00 am-11:59 pm
2 stops18h 59m
San Antonio
Sun 2/22
6:00 am-8:44 am
2 stops25h 44m
$335
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Mon 2/23
5:26 pm-11:59 pm
3 stops31h 33m
San Antonio
Mon 3/2
10:26 am-4:26 pm
3 stops29h 00m
$339
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sat 3/21
9:53 am-9:32 am
3 stops24h 39m
San Antonio
Wed 3/25
10:27 am-10:52 pm
2 stops11h 25m
$343
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sun 3/8
6:00 am-11:59 pm
2 stops18h 59m
San Antonio
Wed 3/11
6:00 am-8:39 am
3 stops25h 39m
$348
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Tue 2/24
5:30 am-9:30 am
3 stops29h 00m
San Antonio
Thu 2/26
10:26 am-6:51 pm
3 stops31h 25m
$352
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sun 4/26
5:57 pm-9:30 am
1 stop16h 33m
San Antonio
Fri 5/1
6:00 am-11:59 pm
2 stops16h 59m
$352
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 3/12
5:21 pm-9:32 am
2 stops17h 11m
San Antonio
Sun 3/15
10:27 am-8:39 am
1 stop21h 12m
$353
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Tue 5/26
5:57 pm-10:29 pm
2 stops29h 32m
San Antonio
Sat 5/30
6:00 am-11:59 pm
2 stops16h 59m
$354
Showing 1-10 of 20 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 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.
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 Philadelphia to San Antonio
Prices
Delays
More
How far ahead should I book a flight from Philadelphia to San Antonio?
Use this chart to determine the optimal time to book a round-trip flight from Philadelphia to San Antonio. Price data was last updated on January 23, 2026.
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, December is the cheapest month in which you can book a flight from Philadelphia to San Antonio (average of $56). Flying from Philadelphia to San Antonio in February is currently the most expensive (average of $158). 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?
Find hourly flight availability from Philadelphia to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 26, 2026.
When flying from Philadelphia to San Antonio, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Philadelphia to San Antonio delayed?
About 25% of weekly flights between Philadelphia and San Antonio have experienced delays in the past year, with the average delay time being 184 minutes.
What is the most punctual flight time for Philadelphia to San Antonio flights?
Historically, flights departing in the early afternoon 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?
Wednesday 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?
Share of 1-stop round-trip flights from Philadelphia to San Antonio chosen by Cheapflights users in the past 12 months, using the same layover each way.
Houston (IAH) – chosen by Cheapflights users on 33% of 1-stop itineraries from Philadelphia to San Antonio on Cheapflights.
What’s the cheapest layover airport for flights from Philadelphia to San Antonio?
Average round-trip fare for 1-stop flights from Philadelphia to San Antonio, chosen by Cheapflights users in the past 12 months, with the same layover each way.
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?
Shortest average travel time for 1-stop one-way flights from Philadelphia to San Antonio, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Houston (IAH) have the shortest average one-way travel time for 1-stop routes: 5h 20m.
Which airport typically offers the quickest layover for flights from Philadelphia to San Antonio?
Average layover duration for 1-stop one-way flights from Philadelphia to San Antonio, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Nashville (BNA) offer the fastest connection on this route, with an average layover time of 0h 50m.
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 January 26, 2026.
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.
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
Browse thousands of different options on Cheapflights for your next trip
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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 January 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$127 | Average$200 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$149 | Average$272 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$271 | Average$438 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$490 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$321 | Average$501 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$330 | Average$464 | FlexibilityNo cancel fee | On-time63% |