$80+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAT
Apr 9 — Apr 161
Round-trip
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 Wednesday
Cheap flight deals from Philadelphia to San Antonio
Cheapest
Best
Last-minute
One-way
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 March 10, 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 March 10, 2026.
This CheapOair deal was found by Cheapflights users on 3/10. 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 4/98:25 pm
PHL
- SAT
1 stop28h 54m
Frontier
Sun 4/126:45 am
SAT
- PHL
1 stop21h 46m
Frontier
Deal found 3/10![Frontier logo]()
$221
This CheapOair deal was found by Cheapflights users on 3/9. 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.
Sun 4/128:25 pm
PHL
- SAT
1 stop28h 54m
Frontier
Sun 4/192:59 pm
SAT
- PHL
1 stop13h 35m
Frontier
Deal found 3/9![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:25 pm
PHL
- SAT
1 stop18h 54m
Multiple Airlines
Thu 5/146:00 am
SAT
- PHL
1 stop16h 10m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$227
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1810:35 am
PHL
- SAT
Nonstop4h 10m
American Airlines
Mon 9/215:58 pm
SAT
- PHL
1 stop5h 11m
American Airlines
Deal found 3/10![American Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:25 pm
PHL
- SAT
1 stop19h 14m
Frontier
Tue 5/193:14 pm
SAT
- PHL
2 stops31h 43m
Frontier
Deal found 3/9![Frontier logo]()
$234
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:17 am
PHL
- SAT
1 stop5h 35m
Delta
Sat 5/234:00 pm
SAT
- PHL
1 stop6h 07m
Delta
Deal found 3/9![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 3/9. 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.
Fri 5/226:35 pm
PHL
- SAT
1 stop5h 55m
Southwest
Mon 5/254:45 pm
SAT
- PHL
1 stop5h 20m
Southwest
Deal found 3/9![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:25 pm
PHL
- SAT
1 stop19h 14m
Frontier
Wed 5/203:14 pm
SAT
- PHL
1 stop13h 20m
Frontier
Deal found 3/9![Frontier logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:02 am
PHL
- SAT
2 stops13h 49m
Multiple Airlines
Wed 4/294:49 pm
SAT
- PHL
1 stop11h 45m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 3/9. 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.
Sat 5/96:15 am
PHL
- SAT
2 stops9h 35m
Southwest
Thu 5/143:20 pm
SAT
- PHL
1 stop8h 15m
Southwest
Deal found 3/9![Southwest logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/148:25 pm
PHL
- SAT
1 stop18h 54m
Frontier
Wed 5/203:14 pm
SAT
- PHL
2 stops22h 48m
Frontier
Deal found 3/9![Frontier logo]()
$245
Best flights from Philadelphia to San AntonioDiscover carefully curated flight deals from Philadelphia to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from Philadelphia to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This Southwest deal was found by Cheapflights users on 3/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/205:45 pm
PHL
- SAT
1 stop7h 05m
Southwest
Sat 5/2311:45 am
SAT
- PHL
2 stops8h 50m
Southwest
Deal found 3/5![Southwest logo]()
$294
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:17 am
PHL
- SAT
1 stop6h 46m
Delta
Sun 5/245:20 am
SAT
- PHL
1 stop5h 30m
Delta
Deal found 3/7![Delta logo]()
$328
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/256:17 am
PHL
- SAT
1 stop7h 07m
United Airlines
Wed 4/295:30 am
SAT
- PHL
1 stop5h 13m
United Airlines
Deal found 3/7![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 3/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:30 pm
PHL
- SAT
2 stops7h 30m
Southwest
Mon 4/133:05 pm
SAT
- PHL
2 stops6h 40m
Southwest
Deal found 3/6![Southwest logo]()
$299
This Southwest deal was found by Cheapflights users on 3/9. 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.
Thu 5/712:20 pm
PHL
- SAT
2 stops11h 40m
Southwest
Mon 5/113:05 pm
SAT
- PHL
2 stops7h 00m
Southwest
Deal found 3/9![Southwest logo]()
$305
This Southwest deal was found by Cheapflights users on 3/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/46:10 pm
PHL
- SAT
1 stop5h 40m
Southwest
Sat 4/1111:40 am
SAT
- PHL
2 stops8h 55m
Southwest
Deal found 3/7![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 3/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2012:20 pm
PHL
- SAT
2 stops11h 40m
Southwest
Fri 4/243:05 pm
SAT
- PHL
2 stops6h 40m
Southwest
Deal found 3/7![Southwest logo]()
$325
This Southwest deal was found by Cheapflights users on 3/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/177:55 am
PHL
- SAT
2 stops7h 35m
Southwest
Mon 4/203:05 pm
SAT
- PHL
2 stops6h 40m
Southwest
Deal found 3/7![Southwest logo]()
$329
This Southwest deal was found by Cheapflights users on 3/9. 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.
Fri 5/2212:20 pm
PHL
- SAT
2 stops11h 40m
Southwest
Tue 5/263:50 pm
SAT
- PHL
1 stop5h 10m
Southwest
Deal found 3/9![Southwest logo]()
$330
This Southwest deal was found by Cheapflights users on 3/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:20 pm
PHL
- SAT
2 stops11h 40m
Southwest
Fri 5/13:05 pm
SAT
- PHL
2 stops6h 40m
Southwest
Deal found 3/7![Southwest logo]()
$345
This Southwest deal was found by Cheapflights users on 3/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/46:05 am
PHL
- SAT
2 stops8h 10m
Southwest
Thu 6/43:10 pm
SAT
- PHL
2 stops8h 05m
Southwest
Deal found 3/8![Southwest logo]()
$380
Last-minute flights from Philadelphia to San AntonioDiscover last-minute flight deals from Philadelphia to San Antonio. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to San Antonio. Data last updated March 10, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:25 pm
PHL
- SAT
1 stop28h 54m
Frontier
Mon 4/66:45 am
SAT
- PHL
1 stop21h 46m
Frontier
Deal found 3/6![Frontier logo]()
$250
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/65:17 pm
PHL
- SAT
1 stop7h 42m
American Airlines
Thu 4/97:05 am
SAT
- PHL
Nonstop3h 35m
American Airlines
Deal found 3/9![American Airlines logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/68:53 pm
PHL
- SAT
2 stops37h 34m
Multiple Airlines
Mon 4/136:00 pm
SAT
- PHL
1 stop14h 11m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$257
This CheapOair deal was found by Cheapflights users on 3/10. 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 4/98:25 pm
PHL
- SAT
1 stop28h 54m
Frontier
Sun 4/126:45 am
SAT
- PHL
1 stop21h 46m
Frontier
Deal found 3/10![Frontier logo]()
$221
This CheapOair deal was found by Cheapflights users on 3/9. 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.
Sun 4/128:25 pm
PHL
- SAT
1 stop28h 54m
Frontier
Sun 4/192:59 pm
SAT
- PHL
1 stop13h 35m
Frontier
Deal found 3/9![Frontier logo]()
$222
This Kissandfly.com deal was found by Cheapflights users on 3/7. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/135:00 am
PHL
- SAT
1 stop8h 27m
Spirit Airlines
Tue 4/217:05 am
SAT
- PHL
Nonstop3h 35m
Spirit Airlines
Deal found 3/7![Spirit Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:02 am
PHL
- SAT
2 stops13h 49m
Multiple Airlines
Wed 4/294:49 pm
SAT
- PHL
1 stop11h 45m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$242
This Southwest deal was found by Cheapflights users on 3/9. 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.
Thu 4/237:10 pm
PHL
- SAT
1 stop5h 55m
Southwest
Sun 4/267:20 am
SAT
- PHL
1 stop5h 05m
Southwest
Deal found 3/9![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2310:38 pm
PHL
- SAT
2 stops16h 37m
Frontier
Wed 4/294:49 pm
SAT
- PHL
1 stop11h 45m
Frontier
Deal found 3/9![Frontier logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:21 pm
PHL
- SAT
1 stop8h 31m
American Airlines
Mon 4/277:05 am
SAT
- PHL
Nonstop3h 35m
American Airlines
Deal found 3/10![American Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:41 pm
PHL
- SAT
2 stops18h 28m
Frontier
Wed 4/294:49 pm
SAT
- PHL
1 stop11h 45m
Frontier
Deal found 3/9![Frontier logo]()
$255
This Delta deal was found by Cheapflights users on 3/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/252:34 pm
PHL
- SAT
1 stop7h 56m
Delta
Fri 5/16:05 pm
SAT
- PHL
1 stop10h 54m
Delta
Deal found 3/10![Delta logo]()
$237
One-way flights from Philadelphia to San AntonioSearch for one-way flight options from Philadelphia to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from Philadelphia to San Antonio. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This American Airlines deal was found by Cheapflights users on 3/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/185:49 pm
PHL
- SAT
Nonstop4h 09m
American Airlines
Deal found 3/5![American Airlines logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:36 pm
PHL
- SAT
1 stop20h 17m
Frontier
Deal found 3/5![Frontier logo]()
$88
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:20 pm
PHL
- SAT
1 stop8h 36m
American Airlines
Deal found 3/9![American Airlines logo]()
$90
This Southwest deal was found by Cheapflights users on 3/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/104:30 pm
PHL
- SAT
2 stops7h 30m
Southwest
Deal found 3/8![Southwest logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:25 pm
PHL
- SAT
1 stop18h 54m
Frontier
Deal found 3/9![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:25 pm
PHL
- SAT
1 stop18h 54m
Frontier
Deal found 3/9![Frontier logo]()
$100
This Frontier deal was found by Cheapflights users on 3/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/710:38 pm
PHL
- SAT
1 stop11h 46m
Frontier
Deal found 3/6![Frontier logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:25 pm
PHL
- SAT
1 stop18h 54m
Frontier
Deal found 3/9![Frontier logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/38:36 pm
PHL
- SAT
1 stop18h 39m
Frontier
Deal found 3/6![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/85:32 pm
PHL
- SAT
1 stop16h 55m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$106
This Delta deal was found by Cheapflights users on 3/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:17 pm
PHL
- SAT
1 stop8h 27m
Delta
Deal found 3/9![Delta logo]()
$109
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 March 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $221 (CheapOair) |
One-way from | $80 (American Airlines) |
Popular in | November |
Cheapest in | April |
Average price | $493 |
Good round-trip deal | $414 or less |
Good one-way deal | $109 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 March 10, 2026.
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
Cheapest round-trip
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Wed 5/20
5:45 pm-11:50 pm
1 stop7h 05m
San Antonio
Sat 5/23
11:45 am-9:35 pm
2 stops8h 50m
$294
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Fri 4/10
4:30 pm-11:00 pm
2 stops7h 30m
San Antonio
Mon 4/13
3:05 pm-10:45 pm
2 stops6h 40m
$299
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 5/7
12:20 pm-11:00 pm
2 stops11h 40m
San Antonio
Mon 5/11
3:05 pm-11:05 pm
2 stops7h 00m
$305
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sat 4/4
6:10 pm-10:50 pm
1 stop5h 40m
San Antonio
Sat 4/11
11:40 am-9:35 pm
2 stops8h 55m
$324
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Mon 4/20
12:20 pm-11:00 pm
2 stops11h 40m
San Antonio
Fri 4/24
3:05 pm-10:45 pm
2 stops6h 40m
$325
Quickest round-trip
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Thu 5/21
5:17 am-11:03 am
1 stop6h 46m
San Antonio
Sun 5/24
5:20 am-11:50 am
1 stop5h 30m
$328
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Fri 4/17
7:55 am-2:30 pm
2 stops7h 35m
San Antonio
Mon 4/20
3:05 pm-10:45 pm
2 stops6h 40m
$329
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Fri 5/22
12:20 pm-11:00 pm
2 stops11h 40m
San Antonio
Tue 5/26
3:50 pm-10:00 pm
1 stop5h 10m
$330
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Mon 4/27
12:20 pm-11:00 pm
2 stops11h 40m
San Antonio
Fri 5/1
3:05 pm-10:45 pm
2 stops6h 40m
$345
PhiladelphiaSan Antonio
PHL - SAT
PHLSAT
Philadelphia
Sat 4/25
6:17 am-12:24 pm
1 stop7h 07m
San Antonio
Wed 4/29
5:30 am-11:43 am
1 stop5h 13m
$379
Showing 1-10 of 23 resultsSorted by cheapest first
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 March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-San Antonio flight deals on Cheapflights vs. FlightHub >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 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 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.
PHL-SAT
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 March 6, 2026.
The best time to book flights from Philadelphia to San Antonio is 82 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 May is currently the most expensive (average of $138). 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.
How often are flights from Philadelphia to San Antonio delayed?
About 26% of weekly flights between Philadelphia and San Antonio have experienced delays in the past year, with the average delay time being 183 minutes.
What is the most punctual flight time for Philadelphia to San Antonio flights?
Historically, flights departing in the morning 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 March 10, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited 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.
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Comfort
8.0
Boarding
8.1
Crew
8.6
Overall
8.0
Entertainment
7.5
Food
7.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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
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Philadelphia and San Antonio flights
Browse other Philadelphia and San Antonio flight options. Last updated on March 10, 2026.
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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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$127 | Average$239 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$149 | Average$268 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$266 | Average$450 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$287 | Average$496 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$329 | Average$457 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$336 | Average$506 | FlexibilityNo cancel fee | On-time71% |