$69+ 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Jun 5 — Jun 121
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
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.Cheap flight deals from San Diego to Delaware
Cheapest
Best
Last-minute
One-way
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 May 6, 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 May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/159:43 am
SAN
- PHL
2 stops23h 04m
Frontier
Mon 6/298:37 pm
PHL
- SAN
1 stop15h 32m
Frontier
Deal found 5/3![Frontier logo]()
$386
This CheapOair deal was found by Cheapflights users on 5/2. 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 5/136:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Tue 5/198:35 pm
PHL
- SAN
1 stop30h 15m
Frontier
Deal found 5/2![Frontier logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/96:54 pm
SAN
- PHL
2 stops31h 43m
Frontier
Sat 5/168:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 5/1![Frontier logo]()
$388
This CheapOair deal was found by Cheapflights users on 5/3. 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 5/229:37 am
SAN
- PHL
1 stop17h 00m
Multiple Airlines
Sun 5/249:21 am
PHL
- SAN
2 stops12h 46m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$389
This Expedia deal was found by Cheapflights users on 5/2. 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.
Wed 5/66:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Wed 5/138:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 5/2![Frontier logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/412:09 pm
SAN
- PHL
1 stop22h 11m
Multiple Airlines
Wed 6/177:00 am
PHL
- SAN
2 stops11h 52m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/129:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Wed 6/177:00 am
PHL
- SAN
2 stops11h 52m
Frontier
Deal found 5/3![Frontier logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Thu 7/238:29 pm
SAN
- PHL
2 stops12h 20m
Frontier
Tue 7/2811:06 am
PHL
- SAN
1 stop12h 52m
Frontier
Deal found 5/5![Frontier logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/1212:54 pm
SAN
- PHL
1 stop19h 22m
Multiple Airlines
Fri 5/158:35 pm
PHL
- SAN
2 stops24h 24m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Sun 7/198:29 pm
SAN
- PHL
2 stops12h 20m
Frontier
Tue 7/2811:06 am
PHL
- SAN
1 stop12h 52m
Frontier
Deal found 5/5![Frontier logo]()
$395
This Trip.com deal was found by Cheapflights users on 5/1. 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 6/249:43 am
SAN
- PHL
2 stops20h 08m
Frontier
Sun 7/58:37 pm
PHL
- SAN
1 stop30h 14m
Frontier
Deal found 5/1![Frontier logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/159:43 am
SAN
- PHL
2 stops23h 04m
Frontier
Sat 6/2712:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 5/3![Frontier logo]()
$397
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 May 6, 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 May 6, 2026.
This Southwest deal was found by Cheapflights users on 5/1. 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 5/247:00 am
SAN
- PHL
1 stop7h 55m
Southwest
Tue 6/24:00 pm
PHL
- SAN
2 stops9h 40m
Southwest
Deal found 5/1![Southwest logo]()
$406
This Delta deal was found by Cheapflights users on 5/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:48 am
SAN
- PHL
1 stop9h 08m
Delta
Wed 8/1212:33 pm
PHL
- SAN
1 stop8h 41m
Delta
Deal found 5/5![Delta logo]()
$431
This American Airlines deal was found by Cheapflights users on 5/4. 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 8/2210:26 pm
SAN
- SBY
1 stop9h 39m
American Airlines
Sat 8/296:41 am
SBY
- SAN
1 stop7h 23m
American Airlines
Deal found 5/4![American Airlines logo]()
$670
This Southwest deal was found by Cheapflights users on 5/5. 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.
Tue 9/112:20 pm
SAN
- PHL
2 stops8h 30m
Southwest
Tue 9/810:45 am
PHL
- SAN
2 stops10h 35m
Southwest
Deal found 5/5![Southwest logo]()
$421
This Southwest deal was found by Cheapflights users on 5/4. 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 6/26:20 am
SAN
- PHL
2 stops8h 45m
Southwest
Thu 6/45:00 am
PHL
- SAN
2 stops9h 15m
Southwest
Deal found 5/4![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 5/3. 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 6/1612:10 pm
SAN
- PHL
2 stops9h 50m
Southwest
Sat 6/272:50 pm
PHL
- SAN
2 stops8h 35m
Southwest
Deal found 5/3![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 5/5. 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.
Tue 6/96:35 am
SAN
- PHL
2 stops9h 05m
Southwest
Fri 6/195:00 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 5/5![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 5/3. 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 5/2412:30 pm
SAN
- PHL
2 stops8h 35m
Southwest
Tue 6/94:35 pm
PHL
- SAN
2 stops9h 15m
Southwest
Deal found 5/3![Southwest logo]()
$444
This American Airlines deal was found by Cheapflights users on 5/5. 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.
Fri 8/2110:20 pm
SAN
- SBY
1 stop9h 45m
American Airlines
Sat 8/296:41 am
SBY
- SAN
1 stop7h 23m
American Airlines
Deal found 5/5![American Airlines logo]()
$697
This Southwest deal was found by Cheapflights users on 5/1. 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
Wed 6/35:50 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 5/1![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 5/2. 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 6/212:30 pm
SAN
- PHL
2 stops8h 25m
Southwest
Sun 6/145:00 am
PHL
- SAN
2 stops8h 40m
Southwest
Deal found 5/2![Southwest logo]()
$444
This Southwest deal was found by Cheapflights users on 5/2. 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 6/11:05 pm
SAN
- PHL
2 stops8h 30m
Southwest
Thu 6/45:00 am
PHL
- SAN
2 stops9h 20m
Southwest
Deal found 5/2![Southwest logo]()
$459
This Southwest deal was found by Cheapflights users on 5/5. 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.
Fri 6/265:10 pm
SAN
- PHL
2 stops14h 50m
Southwest
Sat 7/41:00 pm
PHL
- SAN
2 stops9h 00m
Southwest
Deal found 5/5![Southwest logo]()
$460
This Southwest deal was found by Cheapflights users on 5/5. 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 7/2511:30 am
SAN
- PHL
2 stops9h 35m
Southwest
Sat 8/12:50 pm
PHL
- SAN
2 stops9h 10m
Southwest
Deal found 5/5![Southwest logo]()
$464
Last-minute flights from San Diego to DelawareDiscover last-minute flight deals from San Diego to Delaware. Data last updated May 6, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Delaware. Data last updated May 6, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 5/2. 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.
Wed 5/66:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Wed 5/138:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 5/2![Frontier logo]()
$390
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/96:54 pm
SAN
- PHL
2 stops31h 43m
Frontier
Sat 5/168:35 pm
PHL
- SAN
1 stop15h 07m
Frontier
Deal found 5/1![Frontier logo]()
$388
This Kiwi.com deal was found by Cheapflights users on 5/1. 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 5/1212:54 pm
SAN
- PHL
1 stop19h 22m
Multiple Airlines
Fri 5/158:35 pm
PHL
- SAN
2 stops24h 24m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$394
This CheapOair deal was found by Cheapflights users on 5/2. 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 5/136:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Tue 5/198:35 pm
PHL
- SAN
1 stop30h 15m
Frontier
Deal found 5/2![Frontier logo]()
$387
This CheapOair deal was found by Cheapflights users on 5/3. 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 5/229:37 am
SAN
- PHL
1 stop17h 00m
Multiple Airlines
Sun 5/249:21 am
PHL
- SAN
2 stops12h 46m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 5/5. 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.
Mon 5/2510:07 pm
SAN
- PHL
2 stops28h 30m
Frontier
Sun 5/318:35 pm
PHL
- SAN
1 stop30h 15m
Frontier
Deal found 5/5![Frontier logo]()
$398
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/279:37 am
SAN
- PHL
1 stop17h 00m
Frontier
Sun 5/3110:40 am
PHL
- SAN
1 stop13h 33m
Frontier
Deal found 5/4![Frontier logo]()
$393
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/412:09 pm
SAN
- PHL
1 stop22h 11m
Multiple Airlines
Wed 6/177:00 am
PHL
- SAN
2 stops11h 52m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$391
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/129:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Wed 6/177:00 am
PHL
- SAN
2 stops11h 52m
Frontier
Deal found 5/3![Frontier logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/159:43 am
SAN
- PHL
2 stops23h 04m
Frontier
Mon 6/298:37 pm
PHL
- SAN
1 stop15h 32m
Frontier
Deal found 5/3![Frontier logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/159:43 am
SAN
- PHL
2 stops23h 04m
Frontier
Sat 6/2712:42 pm
PHL
- SAN
1 stop14h 11m
Frontier
Deal found 5/3![Frontier logo]()
$397
This Trip.com deal was found by Cheapflights users on 5/1. 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 6/249:43 am
SAN
- PHL
2 stops20h 08m
Frontier
Sun 7/58:37 pm
PHL
- SAN
1 stop30h 14m
Frontier
Deal found 5/1![Frontier logo]()
$396
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 May 6, 2026.
Search for one-way flight options from San Diego to Delaware. Find affordable one-way fares based on user searches. Data last updated May 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/299:37 am
SAN
- PHL
1 stop17h 00m
Frontier
Deal found 5/4![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/279:37 am
SAN
- PHL
1 stop17h 00m
Frontier
Deal found 5/3![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 5/4. 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 5/286:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 5/4![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 5/1. 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.
Wed 5/206:25 am
SAN
- PHL
1 stop20h 12m
Frontier
Deal found 5/1![Frontier logo]()
$105
This Cheapflightsfares deal was found by Cheapflights users on 5/5. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/109:43 am
SAN
- PHL
1 stop17h 44m
Frontier
Deal found 5/5![Frontier logo]()
$110
This Expedia deal was found by Cheapflights users on 5/3. 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.
Wed 7/1510:04 am
SAN
- PHL
1 stop22h 45m
Frontier
Deal found 5/3![Frontier logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 5/4. 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
2 stops52h 30m
Frontier
Deal found 5/4![Frontier logo]()
$112
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 5/3010:07 pm
SAN
- PHL
1 stop29h 14m
Frontier
Deal found 5/1![Frontier logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 5/251:38 pm
SAN
- PHL
2 stops37h 43m
Frontier
Deal found 5/3![Frontier logo]()
$122
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/109:43 am
SAN
- SBY
3 stops54h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 5/3. 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 6/119:43 am
SAN
- SBY
3 stops30h 48m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 5/3. 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
Deal found 5/3![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 May 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $386 (Kiwi.com) |
One-way from | $69 (Kiwi.com) |
Popular in | April |
Cheapest in | October |
Average price | $455 |
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 May 6, 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
Sun 5/24
7:00 am-5:55 pm
1 stop7h 55m
Philadelphia
Tue 6/2
4:00 pm-10:40 pm
2 stops9h 40m
$406
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 9/1
12:20 pm-11:50 pm
2 stops8h 30m
Philadelphia
Tue 9/8
10:45 am-6:20 pm
2 stops10h 35m
$421
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 8/4
11:48 am-11:56 pm
1 stop9h 08m
Philadelphia
Wed 8/12
12:33 pm-6:14 pm
1 stop8h 41m
$431
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/2
6:20 am-6:05 pm
2 stops8h 45m
Philadelphia
Thu 6/4
5:00 am-11:15 am
2 stops9h 15m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/16
12:10 pm-1:00 am
2 stops9h 50m
Philadelphia
Sat 6/27
2:50 pm-8:25 pm
2 stops8h 35m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/9
6:35 am-6:40 pm
2 stops9h 05m
Philadelphia
Fri 6/19
5:00 am-11:20 am
2 stops9h 20m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sun 5/24
12:30 pm-12:05 am
2 stops8h 35m
Philadelphia
Tue 6/9
4:35 pm-10:50 pm
2 stops9h 15m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 5/28
10:45 am-10:45 pm
2 stops9h 00m
Philadelphia
Wed 6/3
5:50 am-12:10 pm
2 stops9h 20m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/2
12:30 pm-11:55 pm
2 stops8h 25m
Philadelphia
Sun 6/14
5:00 am-10:40 am
2 stops8h 40m
$444
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Mon 6/1
1:05 pm-12:35 am
2 stops8h 30m
Philadelphia
Thu 6/4
5:00 am-11:20 am
2 stops9h 20m
$459
Showing 1-10 of 30 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
Find useful and relevant information for your journey from San Diego to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations