$128+ Cheap flights from Philadelphia to San Diego (PHL - SAN)
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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
PHL — SAN
Jul 12 — Jul 191
Round-trip
1 adult, Economy
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Find cheap flights from Philadelphia to San Diego 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 Diego are usually found in September or January, booked 50 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday
Cheap flight deals from Philadelphia to San Diego
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Best
Last-minute
One-way
Cheapest flights from Philadelphia to San DiegoExplore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
Explore the most affordable flight options available from Philadelphia to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.
This CheapOair deal was found by Cheapflights users on 6/7. 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.
Wed 7/812:44 pm
PHL
- SAN
1 stop23h 21m
Multiple Airlines
Sat 7/188:40 pm
SAN
- PHL
1 stop8h 42m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$409
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:48 pm
PHL
- SAN
1 stop20h 42m
Alaska Airlines
Fri 8/287:59 pm
SAN
- PHL
2 stops16h 46m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 6/6. 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.
Sat 9/1912:10 pm
PHL
- SAN
2 stops8h 55m
Southwest
Wed 9/239:35 am
SAN
- PHL
2 stops8h 20m
Southwest
Deal found 6/6![Southwest logo]()
$411
This Frontier deal was found by Cheapflights users on 6/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/111:35 am
PHL
- SAN
1 stop10h 15m
Frontier
Tue 7/73:03 pm
SAN
- PHL
1 stop11h 57m
Frontier
Deal found 6/8![Frontier logo]()
$412
This CheapOair deal was found by Cheapflights users on 6/10. 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 7/3011:06 am
PHL
- SAN
1 stop12h 00m
Multiple Airlines
Sat 8/88:30 pm
SAN
- PHL
2 stops32h 52m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$413
This CheapOair deal was found by Cheapflights users on 6/11. 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 8/111:06 am
PHL
- SAN
1 stop12h 00m
Multiple Airlines
Wed 8/58:30 pm
SAN
- PHL
2 stops32h 52m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$414
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:00 am
PHL
- SAN
1 stop24h 48m
Frontier
Mon 6/299:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Deal found 6/10![Frontier logo]()
$415
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:44 pm
PHL
- SAN
1 stop14h 07m
Frontier
Sat 8/86:35 am
SAN
- PHL
2 stops21h 40m
Frontier
Deal found 6/7![Frontier logo]()
$416
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 8/14:30 pm
PHL
- SAN
2 stops19h 35m
Frontier
Fri 8/76:25 am
SAN
- PHL
1 stop20h 14m
Frontier
Deal found 6/10![Frontier logo]()
$417
This Southwest deal was found by Cheapflights users on 6/8. 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.
Wed 8/193:00 pm
PHL
- SAN
2 stops8h 55m
Southwest
Sun 8/238:15 am
SAN
- PHL
2 stops8h 55m
Southwest
Deal found 6/8![Southwest logo]()
$418
This Cheapflightsfares deal was found by Cheapflights users on 6/11. 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.
Thu 6/258:37 pm
PHL
- SAN
1 stop30h 16m
Frontier
Tue 6/309:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Deal found 6/11![Frontier logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 7/208:37 pm
PHL
- SAN
1 stop15h 28m
Frontier
Wed 7/294:38 pm
SAN
- PHL
2 stops16h 44m
Frontier
Deal found 6/10![Frontier logo]()
$420
Best flights from Philadelphia to San DiegoDiscover carefully curated flight deals from Philadelphia to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
Discover carefully curated flight deals from Philadelphia to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:48 pm
PHL
- SAN
1 stop20h 42m
Alaska Airlines
Fri 8/287:59 pm
SAN
- PHL
2 stops16h 46m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$410
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 7/17:00 am
PHL
- SAN
2 stops11h 52m
Frontier
Wed 7/83:03 pm
SAN
- PHL
1 stop11h 57m
Frontier
Deal found 6/11![Frontier logo]()
$417
This Southwest deal was found by Cheapflights users on 6/7. 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.
Tue 6/306:20 am
PHL
- SAN
1 stop6h 50m
Southwest
Tue 7/712:10 pm
SAN
- PHL
2 stops9h 55m
Southwest
Deal found 6/7![Southwest logo]()
$436
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 6/305:15 am
PHL
- SAN
1 stop7h 18m
Delta
Sun 7/1210:30 pm
SAN
- PHL
1 stop8h 01m
Delta
Deal found 6/11![Delta logo]()
$483
This Southwest deal was found by Cheapflights users on 6/7. 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.
Wed 9/22:45 pm
PHL
- SAN
2 stops9h 20m
Southwest
Sun 9/68:45 am
SAN
- PHL
2 stops9h 35m
Southwest
Deal found 6/7![Southwest logo]()
$441
This Delta deal was found by Cheapflights users on 6/11. 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 7/46:00 am
PHL
- SAN
1 stop10h 21m
Delta
Sun 7/1210:30 pm
SAN
- PHL
1 stop8h 01m
Delta
Deal found 6/11![Delta logo]()
$483
This Southwest deal was found by Cheapflights users on 6/11. 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 8/144:05 pm
PHL
- SAN
2 stops9h 05m
Southwest
Tue 8/186:45 am
SAN
- PHL
2 stops8h 15m
Southwest
Deal found 6/11![Southwest logo]()
$443
This Delta deal was found by Cheapflights users on 6/9. 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.
Sun 7/265:15 am
PHL
- SAN
1 stop7h 11m
Delta
Sat 8/12:18 pm
SAN
- PHL
1 stop7h 41m
Delta
Deal found 6/9![Delta logo]()
$483
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:20 am
PHL
- SAN
1 stop6h 50m
Southwest
Sat 7/2511:30 am
SAN
- PHL
2 stops9h 40m
Southwest
Deal found 6/10![Southwest logo]()
$449
This Southwest deal was found by Cheapflights users on 6/11. 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 8/135:25 am
PHL
- SAN
2 stops8h 50m
Southwest
Tue 8/186:45 am
SAN
- PHL
2 stops8h 15m
Southwest
Deal found 6/11![Southwest logo]()
$464
This Southwest deal was found by Cheapflights users on 6/9. 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.
Sun 7/125:00 am
PHL
- SAN
1 stop7h 25m
Southwest
Fri 7/1712:55 pm
SAN
- PHL
2 stops8h 50m
Southwest
Deal found 6/9![Southwest logo]()
$482
Last-minute flights from Philadelphia to San DiegoDiscover last-minute flight deals from Philadelphia to San Diego. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Philadelphia to San Diego. Data last updated June 12, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:00 am
PHL
- SAN
1 stop24h 48m
Frontier
Mon 6/299:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Deal found 6/10![Frontier logo]()
$415
This Cheapflightsfares deal was found by Cheapflights users on 6/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2511:00 am
PHL
- SAN
1 stop24h 48m
Frontier
Tue 6/306:25 am
SAN
- PHL
1 stop26h 22m
Frontier
Deal found 6/6![Frontier logo]()
$417
This Frontier deal was found by Cheapflights users on 6/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/111:35 am
PHL
- SAN
1 stop10h 15m
Frontier
Tue 7/73:03 pm
SAN
- PHL
1 stop11h 57m
Frontier
Deal found 6/8![Frontier logo]()
$412
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/511:06 am
PHL
- SAN
1 stop12h 00m
Frontier
Wed 7/153:03 pm
SAN
- PHL
1 stop11h 57m
Frontier
Deal found 6/10![Frontier logo]()
$422
This CheapOair deal was found by Cheapflights users on 6/7. 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.
Wed 7/812:44 pm
PHL
- SAN
1 stop23h 21m
Multiple Airlines
Sat 7/188:40 pm
SAN
- PHL
1 stop8h 42m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 6/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:00 pm
PHL
- SAN
Nonstop5h 50m
American Airlines
Wed 8/129:36 pm
SAN
- PHL
Nonstop5h 21m
American Airlines
Deal found 6/8![American Airlines logo]()
$411
This Southwest deal was found by Cheapflights users on 6/11. 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 7/812:55 pm
PHL
- SAN
2 stops9h 05m
Southwest
Wed 7/1510:55 am
SAN
- PHL
2 stops9h 00m
Southwest
Deal found 6/11![Southwest logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Mon 7/208:37 pm
PHL
- SAN
1 stop15h 28m
Frontier
Wed 7/294:38 pm
SAN
- PHL
2 stops16h 44m
Frontier
Deal found 6/10![Frontier logo]()
$420
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:44 pm
PHL
- SAN
1 stop14h 07m
Frontier
Sat 8/86:35 am
SAN
- PHL
2 stops21h 40m
Frontier
Deal found 6/7![Frontier logo]()
$416
This CheapOair deal was found by Cheapflights users on 6/10. 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 7/3011:06 am
PHL
- SAN
1 stop12h 00m
Multiple Airlines
Sat 8/88:30 pm
SAN
- PHL
2 stops32h 52m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$413
This CheapOair deal was found by Cheapflights users on 6/11. 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.
Fri 7/318:37 pm
PHL
- SAN
1 stop30h 14m
Multiple Airlines
Tue 8/48:30 pm
SAN
- PHL
2 stops33h 05m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$414
One-way flights from Philadelphia to San DiegoSearch for one-way flight options from Philadelphia to San Diego. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
Search for one-way flight options from Philadelphia to San Diego. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:03 pm
PHL
- SAN
2 stops44h 05m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$128
This Cheapflightsfares deal was found by Cheapflights users on 6/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:35 am
PHL
- SAN
1 stop10h 11m
Frontier
Deal found 6/8![Frontier logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 6/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:44 pm
PHL
- SAN
1 stop23h 21m
Frontier
Deal found 6/8![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:03 pm
PHL
- SAN
2 stops44h 05m
Multiple Airlines
Deal found 6/7![Multiple Airlines logo]()
$141
This Frontier deal was found by Cheapflights users on 6/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 6/7![Frontier logo]()
$142
This Southwest deal was found by Cheapflights users on 6/8. 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.
Wed 9/210:45 am
PHL
- SAN
2 stops10h 35m
Southwest
Deal found 6/8![Southwest logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Sun 8/29:03 pm
PHL
- SAN
2 stops44h 05m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$158
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:35 am
PHL
- SAN
1 stop10h 15m
Frontier
Deal found 6/7![Frontier logo]()
$159
This Cheapflightsfares deal was found by Cheapflights users on 6/7. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:46 am
PHL
- SAN
1 stop13h 12m
Frontier
Deal found 6/7![Frontier logo]()
$163
This Super.com deal was found by Cheapflights users on 6/6. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 6/6![Frontier logo]()
$165
Find flight deals from Philadelphia to San Diego
Discover tips and strategies to find the most affordable flight options for your journey from Philadelphia (PHL) to San Diego (SAN). 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 June 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $409 (CheapOair) |
One-way from | $128 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $511 |
Good round-trip deal | $487 or less |
Good one-way deal | $323 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Philadelphia to San Diego 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 June 12, 2026.
Use the filters below to find and compare flights from Philadelphia to San Diego that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Mon 8/24
4:48 pm-10:30 am
1 stop20h 42m
San Diego
Fri 8/28
7:59 pm-3:45 pm
2 stops16h 46m
$410
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Wed 7/1
7:00 am-3:52 pm
2 stops11h 52m
San Diego
Wed 7/8
3:03 pm-6:00 am
1 stop11h 57m
$417
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 6/30
6:20 am-10:10 am
1 stop6h 50m
San Diego
Tue 7/7
12:10 pm-1:05 am
2 stops9h 55m
$436
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Wed 9/2
2:45 pm-9:05 pm
2 stops9h 20m
San Diego
Sun 9/6
8:45 am-9:20 pm
2 stops9h 35m
$441
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Fri 8/14
4:05 pm-10:10 pm
2 stops9h 05m
San Diego
Tue 8/18
6:45 am-6:00 pm
2 stops8h 15m
$443
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 7/21
6:20 am-10:10 am
1 stop6h 50m
San Diego
Sat 7/25
11:30 am-12:10 am
2 stops9h 40m
$449
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Thu 8/13
5:25 am-11:15 am
2 stops8h 50m
San Diego
Tue 8/18
6:45 am-6:00 pm
2 stops8h 15m
$464
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Sun 7/12
5:00 am-9:25 am
1 stop7h 25m
San Diego
Fri 7/17
12:55 pm-12:45 am
2 stops8h 50m
$482
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Tue 6/30
5:15 am-9:33 am
1 stop7h 18m
San Diego
Sun 7/12
10:30 pm-9:31 am
1 stop8h 01m
$483
PhiladelphiaSan Diego
PHL - SAN
PHLSAN
Philadelphia
Sat 7/4
6:00 am-1:21 pm
1 stop10h 21m
San Diego
Sun 7/12
10:30 pm-9:31 am
1 stop8h 01m
$483
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Philadelphia to San Diego
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 Diego in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Philadelphia-San Diego flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Philadelphia-San Diego flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Philadelphia-San Diego flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Philadelphia-San Diego 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 Diego 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 Diego
Have a flexible travel schedule? Discover the best time to fly to San Diego from Philadelphia with our price prediction graph.
PHL-SAN
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 Diego
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How far ahead should I book a flight from Philadelphia to San Diego?
To ensure you get the cheapest price possible for a flight from Philadelphia to San Diego, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Philadelphia to San Diego?
Currently, September is the cheapest month in which you can book a flight from Philadelphia to San Diego (average of $392). Flying from Philadelphia to San Diego in June is currently the most expensive (average of $511). 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 SAN?
Find hourly flight availability from Philadelphia to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2026.
When flying from Philadelphia to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
What’s the top layover airport for flights from Philadelphia to San Diego?
Share of 1-stop round-trip flights from Philadelphia to San Diego chosen by Cheapflights users in the past 12 months, using the same layover each way.
Las Vegas (LAS) – chosen by Cheapflights users on 55% of 1-stop itineraries from Philadelphia to San Diego on Cheapflights.
What’s the cheapest layover airport for flights from Philadelphia to San Diego?
Average round-trip fare for 1-stop flights from Philadelphia to San Diego, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Las Vegas (LAS) is the most affordable 1-stop option, with an average round-trip price of $276.
What’s the fastest layover option from Philadelphia to San Diego?
Shortest average travel time for 1-stop one-way flights from Philadelphia to San Diego, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Nashville (BNA) have the shortest average one-way travel time for 1-stop routes: 7h 25m.
Which airport typically offers the quickest layover for flights from Philadelphia to San Diego?
Average layover duration for 1-stop one-way flights from Philadelphia to San Diego, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Boston (BOS) offer the fastest connection on this route, with an average layover time of 0h 54m.
Reviews of airlines servicing San Diego
Get insights into the airlines that provide service to San Diego. 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 Diego. Reviews last updated June 12, 2026.
Read through reviews of airlines operating flights from Philadelphia to San Diego, such as Southwest,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Overall
7.9
Entertainment
7.5
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Philadelphia to San Diego. 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 Diego?
Book flights to San Diego if you plan to visit one of these locationsEl Cajon
National City
Chula Vista
Poway
Coronado
La Mesa
Santee
Julian
Lemon Grove
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Philadelphia and San Diego flights
Browse other Philadelphia and San Diego flight options. Last updated on June 12, 2026.
Other flights from Philadelphia
Browse through other flights departing from Philadelphia. Flights are based on user searches made on Cheapflights and were last updated on June 12, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Other flights to San Diego
Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 12, 2026.
Top 6 airlines flying from Philadelphia to San Diego
Discover the top 6 airlines that operate flights from Philadelphia to San Diego. 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 June 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$141 | Average$264 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$254 | Average$444 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$265 | Average$396 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$276 | Average$394 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$323 | Average$477 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$339 | Average$485 | FlexibilityNo cancel fee | On-time63% |