$76+ Cheap flights from San Diego (SAN) to Delaware
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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Apr 15 — Apr 221
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Delaware 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
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Cheapest flights from San Diego to DelawareExplore the most affordable flight options available from San Diego to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
Explore the most affordable flight options available from San Diego to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 5/412:25 pm
SAN
- PHL
1 stop14h 09m
Frontier
Sun 5/108:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 3/13![Frontier logo]()
$350
This CheapOair deal was found by Cheapflights users on 3/14. 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 6/39:37 am
SAN
- PHL
1 stop17h 00m
Multiple Airlines
Sun 6/79:22 am
PHL
- SAN
1 stop27h 29m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/712:00 pm
SAN
- PHL
1 stop14h 31m
Frontier
Sat 4/118:25 pm
PHL
- SAN
1 stop30h 37m
Frontier
Deal found 3/15![Frontier logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/26:25 am
SAN
- PHL
2 stops14h 53m
Frontier
Sun 4/58:25 pm
PHL
- SAN
1 stop30h 37m
Frontier
Deal found 3/15![Frontier logo]()
$353
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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.
Mon 5/186:25 am
SAN
- PHL
1 stop12h 49m
Frontier
Wed 5/206:10 am
PHL
- SAN
1 stop14h 49m
Frontier
Deal found 3/13![Frontier logo]()
$354
This CheapOair deal was found by Cheapflights users on 3/11. 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.
Thu 4/306:25 am
SAN
- PHL
1 stop20h 09m
Multiple Airlines
Mon 5/46:00 am
PHL
- SAN
2 stops30h 53m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 3/14. 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 9/288:15 am
SAN
- PHL
1 stop18h 12m
Alaska Airlines
Thu 10/15:15 pm
PHL
- SAN
1 stop9h 51m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 3/12. 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 5/610:10 pm
SAN
- PHL
1 stop10h 30m
Southwest
Wed 5/135:50 am
PHL
- SAN
1 stop9h 15m
Southwest
Deal found 3/12![Southwest logo]()
$359
This CheapOair deal was found by Cheapflights users on 3/15. 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 6/36:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Sun 6/78:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 3/15![Frontier logo]()
$361
This Travelocity deal was found by Cheapflights users on 3/15. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/2511:16 am
SAN
- PHL
1 stop15h 21m
Frontier
Tue 7/142:21 pm
PHL
- SAN
1 stop12h 05m
Frontier
Deal found 3/15![Frontier logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/812:00 pm
SAN
- PHL
1 stop14h 31m
Frontier
Sat 4/119:56 pm
PHL
- SAN
1 stop28h 30m
Frontier
Deal found 3/12![Frontier logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/26:25 am
SAN
- PHL
2 stops14h 53m
Frontier
Mon 4/68:36 pm
PHL
- SAN
1 stop30h 26m
Frontier
Deal found 3/15![Frontier logo]()
$364
Best flights from San Diego to DelawareDiscover carefully curated flight deals from San Diego to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
Discover carefully curated flight deals from San Diego to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 16, 2026.
This Delta deal was found by Cheapflights users on 3/14. 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 7/812:50 pm
SAN
- PHL
1 stop8h 35m
Delta
Wed 7/157:05 am
PHL
- SAN
1 stop10h 34m
Delta
Deal found 3/14![Delta logo]()
$431
This Southwest deal was found by Cheapflights users on 3/12. 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 7/146:35 am
SAN
- PHL
1 stop7h 25m
Southwest
Mon 7/205:00 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 3/12![Southwest logo]()
$449
This American Airlines deal was found by Cheapflights users on 3/15. 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.
Sun 6/219:55 pm
SAN
- PHL
Nonstop5h 18m
American Airlines
Sat 6/273:55 pm
PHL
- SAN
Nonstop5h 40m
American Airlines
Deal found 3/15![American Airlines logo]()
$486
This Alaska Airlines deal was found by Cheapflights users on 3/15. 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.
Fri 4/178:59 pm
SAN
- PHL
2 stops17h 48m
Alaska Airlines
Wed 4/227:25 am
PHL
- SAN
2 stops11h 51m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$493
This Southwest deal was found by Cheapflights users on 3/12. 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 4/86:20 am
SAN
- PHL
2 stops8h 30m
Southwest
Sat 4/116:15 am
PHL
- SAN
2 stops10h 50m
Southwest
Deal found 3/12![Southwest logo]()
$459
This Delta deal was found by Cheapflights users on 3/14. 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 6/133:20 pm
SAN
- PHL
1 stop11h 45m
Delta
Mon 6/226:40 pm
PHL
- SAN
1 stop8h 02m
Delta
Deal found 3/14![Delta logo]()
$473
This Southwest deal was found by Cheapflights users on 3/12. 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 7/2610:40 pm
SAN
- PHL
1 stop11h 40m
Southwest
Fri 7/314:45 pm
PHL
- SAN
1 stop9h 15m
Southwest
Deal found 3/12![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 3/12. 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 7/276:40 am
SAN
- PHL
2 stops10h 05m
Southwest
Fri 7/314:45 pm
PHL
- SAN
1 stop9h 15m
Southwest
Deal found 3/12![Southwest logo]()
$482
This Southwest deal was found by Cheapflights users on 3/11. 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 4/246:30 am
SAN
- PHL
2 stops8h 55m
Southwest
Fri 5/12:15 pm
PHL
- SAN
2 stops8h 40m
Southwest
Deal found 3/11![Southwest logo]()
$487
This American Airlines deal was found by Cheapflights users on 3/14. 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 8/2210:30 pm
SAN
- SBY
1 stop9h 12m
American Airlines
Sat 8/296:40 am
SBY
- SAN
1 stop9h 55m
American Airlines
Deal found 3/14![American Airlines logo]()
$670
This Southwest deal was found by Cheapflights users on 3/12. 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 4/1010:45 am
SAN
- PHL
2 stops9h 00m
Southwest
Mon 4/134:30 pm
PHL
- SAN
2 stops9h 35m
Southwest
Deal found 3/12![Southwest logo]()
$489
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:29 am
SAN
- SBY
1 stop7h 30m
American Airlines
Sat 8/295:01 am
SBY
- SAN
1 stop8h 38m
American Airlines
Deal found 3/11![American Airlines logo]()
$687
This Southwest deal was found by Cheapflights users on 3/15. 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 4/131:05 pm
SAN
- PHL
2 stops8h 30m
Southwest
Mon 4/205:40 am
PHL
- SAN
2 stops9h 30m
Southwest
Deal found 3/15![Southwest logo]()
$489
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:55 pm
SAN
- PHL
2 stops8h 45m
Southwest
Sun 6/145:00 am
PHL
- SAN
2 stops8h 40m
Southwest
Deal found 3/10![Southwest logo]()
$497
Last-minute flights from San Diego to DelawareDiscover last-minute flight deals from San Diego to Delaware. Data last updated March 16, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Delaware. Data last updated March 16, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 3/14. 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.
Mon 3/236:25 am
SAN
- PHL
1 stop20h 06m
Multiple Airlines
Wed 3/257:25 am
PHL
- SAN
1 stop11h 21m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$367
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 3/286:55 am
SAN
- PHL
1 stop7h 47m
Frontier
Sat 4/48:36 pm
PHL
- SAN
1 stop30h 26m
Frontier
Deal found 3/13![Frontier logo]()
$359
This Frontier deal was found by Cheapflights users on 3/15. 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.
Mon 3/306:25 am
SAN
- PHL
1 stop14h 15m
Frontier
Sun 4/53:32 pm
PHL
- SAN
1 stop10h 54m
Frontier
Deal found 3/15![Frontier logo]()
$365
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/26:25 am
SAN
- PHL
2 stops14h 53m
Frontier
Sun 4/58:25 pm
PHL
- SAN
1 stop30h 37m
Frontier
Deal found 3/15![Frontier logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/26:25 am
SAN
- PHL
2 stops14h 53m
Frontier
Mon 4/68:36 pm
PHL
- SAN
1 stop30h 26m
Frontier
Deal found 3/15![Frontier logo]()
$364
This CheapOair deal was found by Cheapflights users on 3/11. 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 4/36:45 am
SAN
- PHL
1 stop9h 53m
Multiple Airlines
Mon 4/68:30 am
PHL
- SAN
1 stop28h 45m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 4/46:25 am
SAN
- PHL
1 stop20h 09m
Frontier
Tue 4/72:09 pm
PHL
- SAN
2 stops36h 53m
Frontier
Deal found 3/14![Frontier logo]()
$366
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/46:35 am
SAN
- PHL
1 stop11h 16m
Frontier
Fri 4/108:33 pm
PHL
- SAN
2 stops30h 29m
Frontier
Deal found 3/15![Frontier logo]()
$371
This Kiwi.com deal was found by Cheapflights users on 3/15. 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 4/712:00 pm
SAN
- PHL
1 stop14h 31m
Frontier
Sat 4/118:25 pm
PHL
- SAN
1 stop30h 37m
Frontier
Deal found 3/15![Frontier logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 4/812:00 pm
SAN
- PHL
1 stop14h 31m
Frontier
Sat 4/119:56 pm
PHL
- SAN
1 stop28h 30m
Frontier
Deal found 3/12![Frontier logo]()
$363
This Southwest deal was found by Cheapflights users on 3/11. 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 4/156:20 am
SAN
- PHL
2 stops8h 30m
Southwest
Wed 5/65:50 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 3/11![Southwest logo]()
$369
This CheapOair deal was found by Cheapflights users on 3/11. 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.
Thu 4/306:25 am
SAN
- PHL
1 stop20h 09m
Multiple Airlines
Mon 5/46:00 am
PHL
- SAN
2 stops30h 53m
Multiple Airlines
Deal found 3/11![Multiple Airlines logo]()
$355
One-way flights from San Diego to DelawareSearch for one-way flight options from San Diego to Delaware. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
Search for one-way flight options from San Diego to Delaware. Find affordable one-way fares based on user searches. Data last updated March 16, 2026.
This Trip.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:15 am
SAN
- PHL
1 stop19h 19m
Frontier
Deal found 3/15![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 4/1510:30 am
SAN
- PHL
1 stop16h 04m
Frontier
Deal found 3/11![Frontier logo]()
$81
This Trip.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/56:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 3/14![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 5/126:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 3/13![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/13. 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 5/136:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 3/13![Frontier logo]()
$104
This Cheapflightsfares deal was found by Cheapflights users on 3/11. 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.
Mon 5/186:55 am
SAN
- PHL
1 stop14h 26m
Frontier
Deal found 3/11![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 3/14. 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 5/126:25 am
SAN
- PHL
2 stops14h 12m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$108
This Cheapflightsfares deal was found by Cheapflights users on 3/13. 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 4/307:45 am
SAN
- PHL
1 stop13h 36m
Frontier
Deal found 3/13![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 3/13. 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 5/106:25 am
SAN
- PHL
1 stop12h 49m
Frontier
Deal found 3/13![Frontier logo]()
$116
Find flight deals from San Diego to Delaware
Keep the following information in mind while searching for San Diego to Delaware flight deals. Data was last updated March 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $350 (Kiwi.com) |
One-way from | $76 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $474 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego to Delaware 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 16, 2026.
Use the filters below to find and compare flights from San Diego to Delaware that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Wed 7/8
12:50 pm-12:25 am
1 stop8h 35m
Philadelphia
Wed 7/15
7:05 am-2:39 pm
1 stop10h 34m
$431
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 7/14
6:35 am-5:00 pm
1 stop7h 25m
Philadelphia
Mon 7/20
5:00 am-11:20 am
2 stops9h 20m
$449
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Wed 4/8
6:20 am-5:50 pm
2 stops8h 30m
Philadelphia
Sat 4/11
6:15 am-2:05 pm
2 stops10h 50m
$459
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sat 6/13
3:20 pm-6:05 am
1 stop11h 45m
Philadelphia
Mon 6/22
6:40 pm-11:42 pm
1 stop8h 02m
$473
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sun 7/26
10:40 pm-1:20 pm
1 stop11h 40m
Philadelphia
Fri 7/31
4:45 pm-11:00 pm
1 stop9h 15m
$482
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Mon 7/27
6:40 am-7:45 pm
2 stops10h 05m
Philadelphia
Fri 7/31
4:45 pm-11:00 pm
1 stop9h 15m
$482
Quickest round-trip
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sun 6/21
9:55 pm-6:13 am
Nonstop5h 18m
Philadelphia
Sat 6/27
3:55 pm-6:35 pm
Nonstop5h 40m
$486
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Fri 4/24
6:30 am-6:25 pm
2 stops8h 55m
Philadelphia
Fri 5/1
2:15 pm-7:55 pm
2 stops8h 40m
$487
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Fri 4/10
10:45 am-10:45 pm
2 stops9h 00m
Philadelphia
Mon 4/13
4:30 pm-11:05 pm
2 stops9h 35m
$489
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Mon 4/13
1:05 pm-12:35 am
2 stops8h 30m
Philadelphia
Mon 4/20
5:40 am-12:10 pm
2 stops9h 30m
$489
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Best time to book a flight from San Diego to Delaware
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SAN-PHL
SAN-SBY
Estimated round-trip price
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SAN-USDE
SAN-PHL
SAN-SBY
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