$59+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
May 10 — May 171
Round-trip
1 adult, Economy
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Find cheap flights from San Diego to Delaware with Cheapflights
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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 April 10, 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 April 10, 2026.
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair 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
Multiple Airlines
Wed 5/68:24 am
PHL
- SAN
2 stops14h 36m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$379
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/159:37 am
SAN
- PHL
1 stop23h 10m
Frontier
Wed 7/112:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 4/5![Frontier logo]()
$380
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:40 pm
SAN
- PHL
1 stop7h 58m
Multiple Airlines
Sat 8/812:42 pm
PHL
- SAN
1 stop23h 00m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Mon 6/154:17 pm
SAN
- PHL
2 stops10h 21m
Frontier
Wed 6/2412:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 4/6![Frontier logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Sat 5/309:37 am
SAN
- PHL
1 stop17h 00m
Frontier
Thu 6/48:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 4/8![Frontier logo]()
$383
This CheapOair deal was found by Cheapflights users on 4/7. 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 4/1510:30 am
SAN
- PHL
1 stop16h 04m
Multiple Airlines
Fri 5/86:00 am
PHL
- SAN
2 stops17h 00m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$384
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:25 am
SAN
- PHL
1 stop20h 09m
Multiple Airlines
Thu 4/308:25 am
PHL
- SAN
2 stops14h 39m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$385
This Expedia deal was found by Cheapflights users on 4/6. 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.
Tue 6/1612:30 pm
SAN
- PHL
2 stops14h 43m
Multiple Airlines
Tue 6/2312:42 pm
PHL
- SAN
1 stop14h 11m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$386
This Travelocity deal was found by Cheapflights users on 4/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:07 pm
SAN
- PHL
1 stop14h 01m
Multiple Airlines
Sat 8/1512:42 pm
PHL
- SAN
1 stop14h 11m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$387
This CheapOair deal was found by Cheapflights users on 4/7. 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.
Tue 6/96:25 am
SAN
- PHL
1 stop26h 22m
Multiple Airlines
Wed 6/107:45 pm
PHL
- SAN
1 stop26h 43m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$388
This Frontier deal was found by Cheapflights users on 4/8. 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.
Sat 6/66:25 am
SAN
- PHL
1 stop12h 49m
Frontier
Wed 6/1711:35 am
PHL
- SAN
1 stop10h 11m
Frontier
Deal found 4/8![Frontier logo]()
$390
This American Airlines deal was found by Cheapflights users on 4/8. 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.
Sat 8/227:15 am
SAN
- SBY
1 stop10h 16m
American Airlines
Sat 8/296:40 am
SBY
- SAN
1 stop9h 55m
American Airlines
Deal found 4/8![American Airlines logo]()
$670
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 April 10, 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 April 10, 2026.
This Southwest deal was found by Cheapflights users on 4/5. 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.
Sat 5/98:40 am
SAN
- PHL
2 stops9h 55m
Southwest
Tue 5/125:50 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 4/5![Southwest logo]()
$411
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/63:45 pm
SAN
- PHL
1 stop10h 50m
Delta
Sat 6/135:40 am
PHL
- SAN
1 stop8h 03m
Delta
Deal found 4/8![Delta logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 4/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/54:49 pm
SAN
- PHL
1 stop10h 13m
Alaska Airlines
Wed 5/68:55 am
PHL
- SAN
2 stops12h 36m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$478
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Wed 6/1010:28 pm
SAN
- SBY
1 stop9h 34m
American Airlines
Wed 6/174:34 pm
SBY
- SAN
1 stop8h 14m
American Airlines
Deal found 4/5![American Airlines logo]()
$670
This Delta deal was found by Cheapflights users on 4/9. 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.
Sat 6/1310:17 pm
SAN
- PHL
1 stop7h 27m
Delta
Mon 6/296:57 pm
PHL
- SAN
1 stop7h 38m
Delta
Deal found 4/9![Delta logo]()
$453
This Southwest deal was found by Cheapflights users on 4/5. 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 5/2012:30 pm
SAN
- PHL
2 stops8h 25m
Southwest
Sun 5/241:50 pm
PHL
- SAN
2 stops9h 35m
Southwest
Deal found 4/5![Southwest logo]()
$461
This Southwest deal was found by Cheapflights users on 4/5. 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 5/2012:30 pm
SAN
- PHL
2 stops8h 25m
Southwest
Mon 5/255:40 am
PHL
- SAN
2 stops9h 30m
Southwest
Deal found 4/5![Southwest logo]()
$461
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/234:18 pm
SAN
- PHL
1 stop10h 27m
Delta
Fri 7/105:28 pm
PHL
- SAN
1 stop7h 33m
Delta
Deal found 4/8![Delta logo]()
$473
This Southwest deal was found by Cheapflights users on 4/5. 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.
Thu 5/2810:45 am
SAN
- PHL
2 stops9h 00m
Southwest
Sun 5/315:20 am
PHL
- SAN
2 stops9h 25m
Southwest
Deal found 4/5![Southwest logo]()
$476
This Delta deal was found by Cheapflights users on 4/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/227:13 pm
SAN
- PHL
1 stop7h 55m
Delta
Thu 7/92:32 pm
PHL
- SAN
1 stop8h 03m
Delta
Deal found 4/8![Delta logo]()
$515
This American Airlines deal was found by Cheapflights users on 4/5. 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.
Tue 6/910:28 pm
SAN
- SBY
1 stop9h 34m
American Airlines
Tue 6/164:34 pm
SBY
- SAN
1 stop8h 14m
American Airlines
Deal found 4/5![American Airlines logo]()
$670
This Southwest deal was found by Cheapflights users on 4/6. 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.
Thu 6/1812:55 pm
SAN
- PHL
2 stops8h 45m
Southwest
Sun 6/215:00 am
PHL
- SAN
2 stops8h 40m
Southwest
Deal found 4/6![Southwest logo]()
$504
This Southwest deal was found by Cheapflights users on 4/9. 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 6/2711:30 am
SAN
- PHL
2 stops9h 35m
Southwest
Thu 7/95:00 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 4/9![Southwest logo]()
$504
This American Airlines deal was found by Cheapflights users on 4/9. 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.
Sat 8/226:15 am
SAN
- SBY
2 stops11h 16m
American Airlines
Sat 8/295:01 am
SBY
- SAN
1 stop7h 13m
American Airlines
Deal found 4/9![American Airlines logo]()
$676
This Southwest deal was found by Cheapflights users on 4/6. 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.
Thu 5/1410:45 am
SAN
- PHL
2 stops9h 00m
Southwest
Tue 5/1911:35 am
PHL
- SAN
2 stops9h 40m
Southwest
Deal found 4/6![Southwest logo]()
$504
This American Airlines deal was found by Cheapflights users on 4/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2110:30 pm
SAN
- SBY
1 stop9h 12m
American Airlines
Sat 8/296:40 am
SBY
- SAN
1 stop9h 55m
American Airlines
Deal found 4/6![American Airlines logo]()
$687
Last-minute flights from San Diego to DelawareDiscover last-minute flight deals from San Diego to Delaware. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Delaware. Data last updated April 10, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:00 am
SAN
- PHL
1 stop18h 34m
Multiple Airlines
Tue 5/58:25 am
PHL
- SAN
2 stops14h 39m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$379
This CheapOair deal was found by Cheapflights users on 4/7. 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 4/1510:30 am
SAN
- PHL
1 stop16h 04m
Multiple Airlines
Fri 5/86:00 am
PHL
- SAN
2 stops17h 00m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$384
This CheapOair deal was found by Cheapflights users on 4/8. 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 CheapOair 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
Multiple Airlines
Wed 5/68:24 am
PHL
- SAN
2 stops14h 36m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Sat 4/187:15 am
SAN
- PHL
2 stops21h 55m
Frontier
Sat 4/258:41 pm
PHL
- SAN
1 stop14h 53m
Frontier
Deal found 4/6![Frontier logo]()
$393
This CheapOair deal was found by Cheapflights users on 4/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 am
SAN
- PHL
1 stop13h 54m
Multiple Airlines
Tue 4/288:25 am
PHL
- SAN
2 stops14h 40m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 4/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/112:03 pm
SAN
- SBY
1 stop7h 05m
American Airlines
Sun 5/176:38 am
SBY
- SAN
1 stop7h 39m
American Airlines
Deal found 4/6![American Airlines logo]()
$765
This CheapOair deal was found by Cheapflights users on 4/9. 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.
Thu 5/76:25 am
SAN
- PHL
1 stop20h 12m
Multiple Airlines
Mon 5/116:00 am
PHL
- SAN
2 stops30h 55m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$390
This CheapOair deal was found by Cheapflights users on 4/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/99:10 pm
SAN
- PHL
2 stops31h 24m
Multiple Airlines
Tue 5/128:35 pm
PHL
- SAN
1 stop30h 15m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$396
This American Airlines deal was found by Cheapflights users on 4/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/136:15 am
SAN
- PHL
Nonstop5h 24m
American Airlines
Tue 5/193:55 pm
PHL
- SAN
Nonstop5h 51m
American Airlines
Deal found 4/6![American Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Tue 5/2610:07 pm
SAN
- PHL
1 stop28h 03m
Frontier
Fri 5/2910:00 am
PHL
- SAN
2 stops16h 50m
Frontier
Deal found 4/6![Frontier logo]()
$397
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Thu 5/281:38 pm
SAN
- PHL
2 stops12h 59m
Frontier
Thu 6/48:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 4/8![Frontier logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Sat 5/309:37 am
SAN
- PHL
1 stop17h 00m
Frontier
Thu 6/48:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 4/8![Frontier logo]()
$383
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 April 10, 2026.
Search for one-way flight options from San Diego to Delaware. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Trip.com deal was found by Cheapflights users on 4/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/66:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 4/9![Frontier logo]()
$59
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:12 pm
SAN
- PHL
1 stop14h 22m
Frontier
Deal found 4/7![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 4/9. 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 4/2910:30 am
SAN
- PHL
1 stop16h 04m
Frontier
Deal found 4/9![Frontier logo]()
$64
This Trip.com deal was found by Cheapflights users on 4/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 4/9![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Sat 5/211:42 am
SAN
- PHL
1 stop14h 53m
Frontier
Deal found 4/6![Frontier logo]()
$72
This Cheapflightsfares deal was found by Cheapflights users on 4/6. 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 4/307:45 am
SAN
- PHL
1 stop13h 36m
Frontier
Deal found 4/6![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Tue 5/56:25 am
SAN
- PHL
1 stop25h 46m
Frontier
Deal found 4/6![Frontier logo]()
$93
This Trip.com deal was found by Cheapflights users on 4/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:25 am
SAN
- PHL
1 stop20h 09m
Frontier
Deal found 4/9![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 4/6. 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.
Sat 5/236:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 4/6![Frontier logo]()
$99
This American Airlines deal was found by Cheapflights users on 4/10. 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.
Wed 9/167:48 am
SAN
- SBY
1 stop7h 11m
American Airlines
Deal found 4/10![American Airlines logo]()
$615
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $380 (CheapOair) |
One-way from | $59 (Trip.com) |
Popular in | December |
Cheapest in | October |
Average price | $470 |
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 April 10, 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
Sat 5/9
8:40 am-9:35 pm
2 stops9h 55m
Philadelphia
Tue 5/12
5:50 am-12:10 pm
2 stops9h 20m
$411
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sat 6/6
3:45 pm-5:35 am
1 stop10h 50m
Philadelphia
Sat 6/13
5:40 am-10:43 am
1 stop8h 03m
$431
Quickest round-trip
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sat 6/13
10:17 pm-8:44 am
1 stop7h 27m
Philadelphia
Mon 6/29
6:57 pm-11:35 pm
1 stop7h 38m
$453
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Wed 5/20
12:30 pm-11:55 pm
2 stops8h 25m
Philadelphia
Sun 5/24
1:50 pm-8:25 pm
2 stops9h 35m
$461
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Wed 5/20
12:30 pm-11:55 pm
2 stops8h 25m
Philadelphia
Mon 5/25
5:40 am-12:10 pm
2 stops9h 30m
$461
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/23
4:18 pm-5:45 am
1 stop10h 27m
Philadelphia
Fri 7/10
5:28 pm-10:01 pm
1 stop7h 33m
$473
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 5/28
10:45 am-10:45 pm
2 stops9h 00m
Philadelphia
Sun 5/31
5:20 am-11:45 am
2 stops9h 25m
$476
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 5/5
4:49 pm-6:02 am
1 stop10h 13m
Philadelphia
Wed 5/6
8:55 am-6:31 pm
2 stops12h 36m
$478
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 6/18
12:55 pm-12:40 am
2 stops8h 45m
Philadelphia
Sun 6/21
5:00 am-10:40 am
2 stops8h 40m
$504
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sat 6/27
11:30 am-12:05 am
2 stops9h 35m
Philadelphia
Thu 7/9
5:00 am-11:20 am
2 stops9h 20m
$504
Showing 1-10 of 28 resultsSorted by cheapest first
Best time to book a flight from San Diego to Delaware
Have a flexible travel schedule? Discover the best time to fly to Delaware from San Diego with our price prediction graph.
SAN-PHL
SAN-SBY
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 San Diego to Delaware
SAN-USDE
SAN-PHL
SAN-SBY
No data available for this route at this time. Please check back soon.
Related info for your journey
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