$67+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Apr 6 — Apr 131
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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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
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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 7, 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 7, 2026.
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:20 am
SAN
- PHL
Nonstop5h 28m
American Airlines
Wed 9/305:45 pm
PHL
- SAN
Nonstop5h 49m
American Airlines
Deal found 3/2![American Airlines logo]()
$351
This Trip.com deal was found by Cheapflights users on 3/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:18 pm
SAN
- PHL
2 stops34h 41m
Frontier
Sun 3/153:41 pm
PHL
- SAN
1 stop11h 35m
Frontier
Deal found 3/3![Frontier logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Tue 3/242:08 pm
SAN
- PHL
2 stops21h 29m
Frontier
Sun 3/298:25 pm
PHL
- SAN
1 stop14h 40m
Frontier
Deal found 3/3![Frontier logo]()
$353
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:22 pm
SAN
- PHL
1 stop10h 53m
United Airlines
Tue 4/2111:36 am
PHL
- SAN
2 stops12h 03m
United Airlines
Deal found 3/6![United Airlines logo]()
$354
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:41 pm
SAN
- PHL
Nonstop5h 04m
American Airlines
Thu 4/97:49 pm
PHL
- SAN
Nonstop6h 00m
American Airlines
Deal found 3/2![American Airlines logo]()
$355
This CheapOair deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Fri 5/88:25 am
PHL
- SAN
2 stops32h 37m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$356
This Alaska Airlines deal was found by Cheapflights users on 3/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:15 am
SAN
- PHL
1 stop21h 00m
Alaska Airlines
Tue 6/165:43 pm
PHL
- SAN
1 stop9h 01m
Alaska Airlines
Deal found 3/2![Alaska Airlines logo]()
$357
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 3/182:08 pm
SAN
- PHL
2 stops15h 31m
Multiple Airlines
Mon 3/238:25 pm
PHL
- SAN
1 stop30h 43m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$358
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/319:41 pm
SAN
- PHL
Nonstop5h 04m
American Airlines
Thu 4/97:49 pm
PHL
- SAN
Nonstop6h 00m
American Airlines
Deal found 3/2![American Airlines logo]()
$359
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:55 am
SAN
- PHL
1 stop13h 13m
Frontier
Sun 3/153:41 pm
PHL
- SAN
1 stop11h 35m
Frontier
Deal found 3/3![Frontier logo]()
$360
This CheapOair deal was found by Cheapflights users on 3/4. 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 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
Wed 5/68:25 am
PHL
- SAN
2 stops52h 28m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/266:25 am
SAN
- PHL
1 stop20h 06m
Frontier
Tue 3/318:30 am
PHL
- SAN
2 stops18h 38m
Frontier
Deal found 3/3![Frontier logo]()
$363
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 7, 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 7, 2026.
This CheapOair deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Thu 4/308:25 am
PHL
- SAN
2 stops28h 28m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:37 pm
SAN
- PHL
2 stops10h 51m
United Airlines
Thu 4/236:21 pm
PHL
- SAN
1 stop9h 08m
United Airlines
Deal found 3/5![United Airlines logo]()
$364
This Southwest deal was found by Cheapflights users on 3/1. 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.
Fri 5/297:10 am
SAN
- PHL
1 stop8h 15m
Southwest
Sat 6/64:50 pm
PHL
- SAN
2 stops9h 00m
Southwest
Deal found 3/1![Southwest logo]()
$377
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/145:01 pm
SAN
- PHL
1 stop10h 09m
Delta
Mon 5/185:17 pm
PHL
- SAN
1 stop9h 10m
Delta
Deal found 3/1![Delta logo]()
$429
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:05 am
SAN
- PHL
Nonstop5h 21m
American Airlines
Thu 4/303:55 pm
PHL
- SAN
Nonstop5h 51m
American Airlines
Deal found 3/6![American Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 3/2. 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
Wed 6/1012:55 pm
PHL
- SAN
2 stops8h 50m
Southwest
Deal found 3/2![Southwest logo]()
$381
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:09 pm
SAN
- PHL
1 stop18h 20m
Multiple Airlines
Sun 5/176:16 pm
PHL
- SAN
2 stops17h 18m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$386
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:30 am
SAN
- PHL
2 stops8h 55m
Southwest
Mon 4/272:15 pm
PHL
- SAN
2 stops8h 40m
Southwest
Deal found 3/6![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:40 pm
SAN
- PHL
1 stop8h 55m
Southwest
Sun 5/171:30 pm
PHL
- SAN
1 stop10h 05m
Southwest
Deal found 3/6![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 3/3. 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.
Wed 3/1111:50 am
SAN
- PHL
1 stop9h 00m
Southwest
Wed 3/1812:35 pm
PHL
- SAN
1 stop10h 00m
Southwest
Deal found 3/3![Southwest logo]()
$461
This American Airlines deal was found by Cheapflights users on 3/3. 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.
Sat 8/2211:29 am
SAN
- SBY
1 stop7h 30m
American Airlines
Sat 8/295:25 pm
SBY
- SAN
2 stops9h 27m
American Airlines
Deal found 3/3![American Airlines logo]()
$656
This Southwest deal was found by Cheapflights users on 3/2. 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.
Thu 3/263:25 pm
SAN
- PHL
2 stops16h 20m
Southwest
Sun 4/55:00 am
PHL
- SAN
2 stops10h 10m
Southwest
Deal found 3/2![Southwest logo]()
$474
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stop7h 13m
American Airlines
Deal found 3/6![American Airlines logo]()
$667
This American Airlines deal was found by Cheapflights users on 3/4. 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.
Wed 6/246:15 am
SAN
- SBY
2 stops11h 15m
American Airlines
Tue 6/306:40 am
SBY
- SAN
1 stop7h 28m
American Airlines
Deal found 3/4![American Airlines logo]()
$676
Last-minute flights from San Diego to DelawareDiscover last-minute flight deals from San Diego to Delaware. Data last updated March 7, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Delaware. Data last updated March 7, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/66:55 am
SAN
- PHL
1 stop13h 13m
Frontier
Sun 3/153:41 pm
PHL
- SAN
1 stop11h 35m
Frontier
Deal found 3/3![Frontier logo]()
$360
This Trip.com deal was found by Cheapflights users on 3/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/99:18 pm
SAN
- PHL
2 stops34h 41m
Frontier
Sun 3/153:41 pm
PHL
- SAN
1 stop11h 35m
Frontier
Deal found 3/3![Frontier logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/4. 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 3/182:08 pm
SAN
- PHL
2 stops15h 31m
Multiple Airlines
Mon 3/238:25 pm
PHL
- SAN
1 stop30h 43m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Tue 3/242:08 pm
SAN
- PHL
2 stops21h 29m
Frontier
Sun 3/298:25 pm
PHL
- SAN
1 stop14h 40m
Frontier
Deal found 3/3![Frontier logo]()
$353
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 3/266:25 am
SAN
- PHL
1 stop20h 06m
Frontier
Tue 3/318:30 am
PHL
- SAN
2 stops18h 38m
Frontier
Deal found 3/3![Frontier logo]()
$363
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/319:41 pm
SAN
- PHL
Nonstop5h 04m
American Airlines
Thu 4/97:49 pm
PHL
- SAN
Nonstop6h 00m
American Airlines
Deal found 3/2![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/19:41 pm
SAN
- PHL
Nonstop5h 04m
American Airlines
Thu 4/97:49 pm
PHL
- SAN
Nonstop6h 00m
American Airlines
Deal found 3/2![American Airlines logo]()
$355
This American Airlines deal was found by Cheapflights users on 3/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:24 am
SAN
- PHL
1 stop8h 30m
American Airlines
Sat 4/46:50 pm
PHL
- SAN
Nonstop6h 09m
American Airlines
Deal found 3/2![American Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/811:01 am
SAN
- PHL
2 stops10h 58m
United Airlines
Fri 4/176:21 pm
PHL
- SAN
1 stop9h 08m
United Airlines
Deal found 3/5![United Airlines logo]()
$364
This CheapOair deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Fri 5/88:25 am
PHL
- SAN
2 stops32h 37m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$356
This CheapOair deal was found by Cheapflights users on 3/4. 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 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
Wed 5/68:25 am
PHL
- SAN
2 stops52h 28m
Multiple Airlines
Deal found 3/4![Multiple Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:22 pm
SAN
- PHL
1 stop10h 53m
United Airlines
Tue 4/2111:36 am
PHL
- SAN
2 stops12h 03m
United Airlines
Deal found 3/6![United Airlines logo]()
$354
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 7, 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 7, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/298:00 am
SAN
- PHL
1 stop18h 34m
Frontier
Deal found 3/3![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:12 pm
SAN
- PHL
1 stop14h 22m
Frontier
Deal found 3/6![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:15 am
SAN
- PHL
1 stop19h 19m
Frontier
Deal found 3/6![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/2. 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 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 3/2![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Sat 5/211:42 am
SAN
- PHL
1 stop14h 53m
Frontier
Deal found 3/4![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/511:42 am
SAN
- PHL
1 stop14h 52m
Frontier
Deal found 3/6![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:00 pm
SAN
- PHL
1 stop14h 31m
Frontier
Deal found 3/5![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/196:56 pm
SAN
- PHL
2 stops55h 38m
Frontier
Deal found 3/3![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Mon 4/69:28 pm
SAN
- PHL
1 stop29h 03m
Frontier
Deal found 3/4![Frontier logo]()
$94
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 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $351 (American Airlines) |
One-way from | $67 (Kiwi.com) |
Popular in | December |
Cheapest in | October |
Average price | $464 |
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 7, 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
Fri 4/24
7:00 am-11:54 pm
1 stop13h 54m
Philadelphia
Thu 4/30
8:25 am-9:53 am
2 stops28h 28m
$353
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Sun 4/19
8:37 pm-10:28 am
2 stops10h 51m
Philadelphia
Thu 4/23
6:21 pm-12:29 am
1 stop9h 08m
$364
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Fri 5/29
7:10 am-6:25 pm
1 stop8h 15m
Philadelphia
Sat 6/6
4:50 pm-10:50 pm
2 stops9h 00m
$377
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Tue 6/2
12:30 pm-11:55 pm
2 stops8h 25m
Philadelphia
Wed 6/10
12:55 pm-6:45 pm
2 stops8h 50m
$381
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 5/14
12:09 pm-9:29 am
1 stop18h 20m
Philadelphia
Sun 5/17
6:16 pm-8:34 am
2 stops17h 18m
$386
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Mon 4/20
6:30 am-6:25 pm
2 stops8h 55m
Philadelphia
Mon 4/27
2:15 pm-7:55 pm
2 stops8h 40m
$389
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 5/14
12:40 pm-12:35 am
1 stop8h 55m
Philadelphia
Sun 5/17
1:30 pm-8:35 pm
1 stop10h 05m
$418
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Thu 5/14
5:01 pm-6:10 am
1 stop10h 09m
Philadelphia
Mon 5/18
5:17 pm-11:27 pm
1 stop9h 10m
$429
Quickest round-trip
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Fri 4/24
9:05 am-5:26 pm
Nonstop5h 21m
Philadelphia
Thu 4/30
3:55 pm-6:46 pm
Nonstop5h 51m
$455
San DiegoPhiladelphia
SAN - PHL
SANPHL
San Diego
Wed 3/11
11:50 am-11:50 pm
1 stop9h 00m
Philadelphia
Wed 3/18
12:35 pm-7:35 pm
1 stop10h 00m
$461
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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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