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Delaware

$62+ 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 4/21. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from San Diego to Delaware

Cheapest flights from San Diego to Delaware
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 February 28, 2026.

This JetBlue deal was found by Cheapflights users on 2/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/188:59 pm
SAN
-
PHL
1 stop9h 05m
JetBlue
Tue 3/246:00 am
PHL
-
SAN
1 stop10h 08m
JetBlue
Deal found 2/26$350
This American Airlines deal was found by Cheapflights users on 2/25. 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 4/1510:30 pm
SAN
-
PHL
Nonstop5h 14m
American Airlines
Wed 5/63:55 pm
PHL
-
SAN
Nonstop5h 51m
American Airlines
Deal found 2/25$351
This Southwest deal was found by Cheapflights users on 2/27. 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 3/1310:40 pm
SAN
-
PHL
1 stop8h 55m
Southwest
Mon 3/1611:40 am
PHL
-
SAN
1 stop14h 30m
Southwest
Deal found 2/27$352
This Kiwi.com deal was found by Cheapflights users on 2/26. 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 3/96:25 am
SAN
-
PHL
1 stop20h 06m
Frontier
Sun 3/1510:28 pm
PHL
-
SAN
2 stops41h 45m
Frontier
Deal found 2/26$353
This Kiwi.com deal was found by Cheapflights users on 2/27. 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 6/106:54 pm
SAN
-
PHL
2 stops15h 43m
Frontier
Tue 6/168:36 pm
PHL
-
SAN
1 stop16h 45m
Frontier
Deal found 2/27$354
This American Airlines deal was found by Cheapflights users on 2/28. 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
Mon 4/66:50 pm
PHL
-
SAN
Nonstop6h 09m
American Airlines
Deal found 2/28$355
This Kiwi.com deal was found by Cheapflights users on 2/24. 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 3/146:25 am
SAN
-
PHL
2 stops22h 42m
Frontier
Mon 3/168:25 pm
PHL
-
SAN
1 stop27h 49m
Frontier
Deal found 2/24$356
This CheapOair deal was found by Cheapflights users on 2/25. 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 2/2611:59 am
SAN
-
PHL
1 stop26h 56m
Frontier
Sat 3/76:25 pm
PHL
-
SAN
1 stop8h 51m
Frontier
Deal found 2/25$357
This Priceline deal was found by Cheapflights users on 2/24. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:59 pm
SAN
-
PHL
1 stop9h 05m
Multiple Airlines
Mon 3/303:16 pm
PHL
-
SAN
1 stop11h 11m
Multiple Airlines
Deal found 2/24$358
This CheapOair deal was found by Cheapflights users on 2/25. 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 3/236:25 am
SAN
-
PHL
1 stop20h 06m
Multiple Airlines
Wed 3/256:00 am
PHL
-
SAN
2 stops16h 52m
Multiple Airlines
Deal found 2/25$359
This Southwest deal was found by Cheapflights users on 2/27. 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 3/36:20 am
SAN
-
PHL
1 stop7h 00m
Southwest
Wed 3/1112:25 pm
PHL
-
SAN
1 stop10h 15m
Southwest
Deal found 2/27$360
This CheapOair deal was found by Cheapflights users on 2/24. 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 3/278:59 pm
SAN
-
PHL
1 stop22h 32m
JetBlue
Tue 3/316:00 am
PHL
-
SAN
1 stop10h 57m
JetBlue
Deal found 2/24$361

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 February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$350
(JetBlue)

One-way from

$62
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$455
Provider with most accurate pricing for San Diego-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Diego-Philadelphia flights.
Search Deals
From San Diego to Delaware
Search Deals
One-way flight from San Diego to Delaware
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 28, 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

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 4/21

12:30 pm-11:55 pm

2 stops8h 25m

Philadelphia

Thu 5/7

12:20 pm-6:00 pm

2 stops8h 40m

$366

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 3/4

10:05 am-8:20 pm

1 stop7h 15m

Philadelphia

Sat 3/7

12:10 pm-11:25 pm

2 stops14h 15m

$381

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 4/21

6:20 am-6:05 pm

2 stops8h 45m

Philadelphia

Fri 4/24

4:30 pm-11:05 pm

2 stops9h 35m

$395

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 3/24

5:01 pm-5:41 am

1 stop9h 40m

Philadelphia

Tue 3/31

6:49 pm-11:48 pm

1 stop7h 59m

$406

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 3/3

10:59 am-9:09 pm

1 stop7h 10m

Philadelphia

Tue 3/17

3:30 pm-9:03 pm

1 stop8h 33m

$441

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 5/20

12:30 pm-11:55 pm

2 stops8h 25m

Philadelphia

Sun 5/31

5:20 am-11:45 am

2 stops9h 25m

$447

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 4/15

8:45 am-12:45 am

2 stops13h 00m

Philadelphia

Wed 5/6

9:55 am-8:38 pm

2 stops13h 43m

$466

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 4/3

6:30 am-6:25 pm

2 stops8h 55m

Philadelphia

Fri 5/1

1:35 pm-7:55 pm

2 stops9h 20m

$469

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 4/6

10:15 am-10:45 pm

2 stops9h 30m

Philadelphia

Fri 4/10

1:35 pm-7:55 pm

2 stops9h 20m

$469

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 4/22

8:45 am-12:59 am

2 stops13h 14m

Philadelphia

Thu 4/30

10:00 am-8:02 pm

2 stops13h 02m

$485

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/26

Showing 1-10 of 27 resultsSorted by cheapest first
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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.
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
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.

  • What airport do you fly from for flights from San Diego to Delaware?

    For a flight from San Diego to Delaware, you will be flying from San Diego. San Diego (SAN) is just 2.6 mi from the center of the city.

  • How long is the flight from San Diego to Delaware?

    A quick flight from San Diego to Delaware can take about 7h 10m. Southwest provides one of the quickest options available for as low as $441. San Diego and Delaware are separated by a distance of 2364 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from San Diego to Delaware that include hotel bookings?

    Yes. In addition to deals on San Diego to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Diego to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Diego to Delaware.

  • Can I find deals for business class flights from San Diego to Delaware?

    Yes. Cheapflights offers flight deals from San Diego to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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