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Delaware

$77+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap 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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$357
(Southwest)

One-way from

$77
(Trip.com)

Popular in

December

Cheapest in

October

Average price

$455
Provider with most accurate pricing for San Diego-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for San Diego-Philadelphia flights.
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From San Diego to Delaware
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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).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 15, 2026.

This Southwest deal was found by Cheapflights users on 1/15. 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 2/77:05 am
SAN
-
PHL
1 stop9h 50m
Southwest
Tue 2/106:10 am
PHL
-
SAN
1 stop7h 55m
Southwest
Deal found 1/15$357
This Expedia deal was found by Cheapflights users on 1/15. 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.
Thu 2/59:40 pm
SAN
-
PHL
1 stop11h 55m
JetBlue
Sun 2/88:40 am
PHL
-
SAN
1 stop14h 50m
JetBlue
Deal found 1/15$360
This Delta deal was found by Cheapflights users on 1/15. 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 2/1410:20 pm
SAN
-
PHL
1 stop9h 03m
Delta
Tue 2/175:25 pm
PHL
-
SAN
1 stop8h 37m
Delta
Deal found 1/15$361
This Expedia deal was found by Cheapflights users on 1/14. 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.
Sat 3/219:35 pm
SAN
-
PHL
1 stop8h 29m
Multiple Airlines
Wed 4/227:22 am
PHL
-
SAN
2 stops12h 31m
Multiple Airlines
Deal found 1/14$365
This CheapOair deal was found by Cheapflights users on 1/15. 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 3/238:36 pm
SAN
-
PHL
1 stop19h 49m
JetBlue
Wed 3/256:00 am
PHL
-
SAN
1 stop10h 06m
JetBlue
Deal found 1/15$366
This Expedia deal was found by Cheapflights users on 1/13. 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.
Sat 3/216:15 am
SAN
-
PHL
1 stop20h 50m
Alaska Airlines
Wed 4/227:22 am
PHL
-
SAN
2 stops14h 58m
Alaska Airlines
Deal found 1/13$367
This Southwest deal was found by Cheapflights users on 1/14. 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 2/1410:00 am
SAN
-
PHL
2 stops9h 50m
Southwest
Sat 2/212:00 pm
PHL
-
SAN
2 stops10h 40m
Southwest
Deal found 1/14$368
This CheapOair deal was found by Cheapflights users on 1/15. 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 2/119:15 pm
SAN
-
PHL
1 stop13h 42m
JetBlue
Wed 2/186:00 am
PHL
-
SAN
1 stop16h 24m
JetBlue
Deal found 1/15$369
This Trip.com deal was found by Cheapflights users on 1/14. 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 1/289:30 pm
SAN
-
PHL
1 stop12h 05m
Multiple Airlines
Sat 1/318:00 am
PHL
-
SAN
2 stops18h 31m
Multiple Airlines
Deal found 1/14$371
This Southwest deal was found by Cheapflights users on 1/14. 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 4/206:40 am
SAN
-
PHL
1 stop8h 45m
Southwest
Thu 4/236:00 pm
PHL
-
SAN
1 stop8h 10m
Southwest
Deal found 1/14$373
This eDestinos deal was found by Cheapflights users on 1/14. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/217:00 am
SAN
-
PHL
2 stops32h 11m
Frontier
Sun 1/258:25 pm
PHL
-
SAN
2 stops30h 43m
Frontier
Deal found 1/14$375
This American Airlines deal was found by Cheapflights users on 1/14. 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 8/2210:30 pm
SAN
-
SBY
1 stop9h 12m
American Airlines
Sat 8/296:41 am
SBY
-
SAN
1 stop9h 44m
American Airlines
Deal found 1/14$630

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 January 15, 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

Sat 2/7

7:05 am-7:55 pm

1 stop9h 50m

Philadelphia

Tue 2/10

6:10 am-11:05 am

1 stop7h 55m

$357

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 2/21

6:30 am-4:50 pm

1 stop7h 20m

Philadelphia

Wed 2/25

5:25 pm-11:02 pm

1 stop8h 37m

$361

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 2/9

10:30 am-10:15 pm

2 stops8h 45m

Philadelphia

Tue 2/10

6:10 am-11:05 am

1 stop7h 55m

$362

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 2/23

6:45 am-4:30 pm

1 stop6h 45m

Philadelphia

Wed 2/25

1:50 pm-9:10 pm

2 stops10h 20m

$362

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 5/25

9:19 pm-9:13 am

1 stop8h 54m

Philadelphia

Wed 6/3

10:00 am-8:08 pm

1 stop13h 08m

$365

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 2/18

6:45 pm-8:50 am

2 stops11h 05m

Philadelphia

Wed 2/25

9:41 am-5:50 pm

2 stops11h 09m

$376

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 2/7

7:05 am-7:55 pm

1 stop9h 50m

Philadelphia

Thu 2/12

12:00 pm-11:05 pm

1 stop14h 05m

$378

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Thu 6/11

10:26 pm-11:01 am

1 stop9h 35m

Salisbury-Ocean City

Mon 6/15

4:32 pm-9:46 pm

1 stop8h 14m

$786

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Fri 5/1

12:04 pm-10:08 pm

1 stop7h 04m

Salisbury-Ocean City

Sun 5/17

1:47 pm-8:52 pm

1 stop10h 05m

$806

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Thu 6/11

12:09 pm-7:29 pm

3 stops28h 20m

Salisbury-Ocean City

Mon 6/15

8:09 pm-12:33 pm

3 stops43h 24m

$1,189

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

Showing 1-10 of 20 results
1
2

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 20m. Southwest provides one of the quickest options available for as low as $361. 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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