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Delaware

$90+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
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 enero 29, 2026.

This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/236:25 am
SAN
-
PHL
1 stop7h 12m
Multiple Airlines
mié. 3/46:00 am
PHL
-
SAN
1 stop11h 23m
Multiple Airlines
Deal found 1/28$355
This Frontier deal was found by Cheapflights users on 1/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 2/126:25 am
SAN
-
PHL
1 stop7h 12m
Frontier
dom. 2/155:42 pm
PHL
-
SAN
1 stop9h 26m
Frontier
Deal found 1/28$356
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
jue. 3/126:25 am
SAN
-
PHL
1 stop20h 06m
Frontier
vie. 3/205:05 am
PHL
-
SAN
2 stops18h 58m
Frontier
Deal found 1/27$358
This United Airlines deal was found by Cheapflights users on 1/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 1/287:00 am
SAN
-
PHL
1 stop7h 33m
United Airlines
mié. 2/2510:06 am
PHL
-
SAN
2 stops10h 23m
United Airlines
Deal found 1/27$359
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
lun. 2/22:52 pm
SAN
-
PHL
2 stops17h 22m
Frontier
lun. 3/98:33 pm
PHL
-
SAN
1 stop27h 41m
Frontier
Deal found 1/29$360
This Delta deal was found by Cheapflights users on 1/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/1012:18 pm
SAN
-
PHL
1 stop7h 42m
Delta
mar. 3/177:00 am
PHL
-
SAN
1 stop8h 23m
Delta
Deal found 1/27$361
This CheapOair deal was found by Cheapflights users on 1/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/169:00 am
SAN
-
PHL
1 stop17h 31m
Multiple Airlines
dom. 3/226:00 am
PHL
-
SAN
1 stop16h 19m
Multiple Airlines
Deal found 1/27$362
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
dom. 3/156:55 am
SAN
-
PHL
2 stops22h 12m
Multiple Airlines
jue. 3/198:25 pm
PHL
-
SAN
1 stop14h 40m
Multiple Airlines
Deal found 1/27$363
This CheapOair deal was found by Cheapflights users on 1/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/188:59 pm
SAN
-
PHL
1 stop9h 05m
JetBlue
vie. 3/208:20 pm
PHL
-
SAN
1 stop26h 57m
JetBlue
Deal found 1/27$365
This Kiwi.com deal was found by Cheapflights users on 1/29. 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.
lun. 2/22:52 pm
SAN
-
PHL
2 stops17h 22m
Frontier
vie. 3/68:25 pm
PHL
-
SAN
1 stop27h 08m
Frontier
Deal found 1/29$366
This United Airlines deal was found by Cheapflights users on 1/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 2/2411:30 am
SAN
-
PHL
1 stop9h 02m
United Airlines
mié. 3/48:00 am
PHL
-
SAN
1 stop8h 47m
United Airlines
Deal found 1/28$367
This CheapOair deal was found by Cheapflights users on 1/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 4/98:47 am
SAN
-
PHL
1 stop17h 44m
Multiple Airlines
dom. 4/126:00 am
PHL
-
SAN
1 stop31h 08m
Multiple Airlines
Deal found 1/27$368

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 enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$355
(Expedia)

One-way from

$90
(Expedia)

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. 7% potential increase in price ($35 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 enero 29, 2026.
Use the filters below to find and compare flights from San Diego to Delaware that are best for you.

Fly from

San Diego

Fly to

Delaware

Route

Depart

Return

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 5/27

10:10 pm-11:40 am

1 stop10h 30m

Philadelphia

mar. 6/9

4:35 pm-10:50 pm

2 stops9h 15m

$366

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 2/25

8:35 am-8:20 pm

2 stops8h 45m

Philadelphia

mié. 3/4

12:15 pm-7:40 pm

2 stops10h 25m

$367

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 4/1

11:40 am-11:50 pm

2 stops9h 10m

Philadelphia

sáb. 4/4

5:30 am-12:30 pm

2 stops10h 00m

$369

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 4/29

6:25 am-5:50 pm

2 stops8h 25m

Philadelphia

sáb. 5/2

6:15 am-2:05 pm

2 stops10h 50m

$369

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

lun. 2/23

10:30 am-10:15 pm

2 stops8h 45m

Philadelphia

mié. 3/4

5:45 pm-10:20 pm

1 stop7h 35m

$375

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

sáb. 2/28

10:30 am-10:50 pm

2 stops9h 20m

Philadelphia

sáb. 3/7

6:10 pm-11:25 pm

1 stop8h 15m

$377

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

jue. 3/5

6:30 am-6:25 pm

2 stops8h 55m

Philadelphia

mar. 3/10

12:25 pm-7:55 pm

2 stops10h 30m

$380

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 4/29

12:30 pm-11:55 pm

2 stops8h 25m

Philadelphia

lun. 5/4

4:30 pm-11:05 pm

2 stops9h 35m

$380

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

lun. 3/2

10:30 am-10:15 pm

2 stops8h 45m

Philadelphia

mié. 3/4

12:15 pm-7:40 pm

2 stops10h 25m

$380

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

sáb. 2/28

6:25 am-4:37 pm

1 stop7h 12m

Philadelphia

mar. 3/3

2:31 pm-8:37 pm

1 stop9h 06m

$381

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 29 results
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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 04m. Southwest provides one of the quickest options available for as low as $751. San Diego and Delaware are separated by a distance of 2354 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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Alternative routes for San Diego to Delaware

See prices for flight routes from nearby airports that may be better suited for you.
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