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Delaware

$161+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
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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 November 13, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/11. 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 12/224:47 pmSAN - PHL
1 stop9h 44mMultiple Airlines
Wed 12/315:25 amPHL - SAN
2 stops31h 32mMultiple Airlines
Deal found 11/11$319
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/154:57 pmSAN - PHL
1 stop9h 34mFrontier
Mon 12/298:41 pmPHL - SAN
2 stops30h 06mFrontier
Deal found 11/13$320
This Kiwi.com deal was found by Cheapflights users on 11/12. 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 12/26:25 amSAN - PHL
2 stops15h 15mMultiple Airlines
Wed 12/38:00 amPHL - SAN
1 stop31h 36mMultiple Airlines
Deal found 11/12$321
This Priceline deal was found by Cheapflights users on 11/11. 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.
Thu 11/136:00 pmSAN - PHL
1 stop7h 49mFrontier
Mon 11/176:19 amPHL - SAN
1 stop7h 58mFrontier
Deal found 11/11$322
This American Airlines deal was found by Cheapflights users on 11/11. 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 12/39:23 amSAN - PHL
Nonstop5h 16mAmerican Airlines
Wed 12/176:45 pmPHL - SAN
Nonstop6h 04mAmerican Airlines
Deal found 11/11$323
This eDestinos deal was found by Cheapflights users on 11/12. 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.
Mon 12/227:21 pmSAN - PHL
1 stop7h 19mMultiple Airlines
Wed 12/242:25 pmPHL - SAN
1 stop30h 38mMultiple Airlines
Deal found 11/12$324
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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.
Thu 12/181:06 pmSAN - PHL
1 stop13h 34mFrontier
Wed 12/317:10 amPHL - SAN
1 stop8h 01mFrontier
Deal found 11/12$325
This United Airlines deal was found by Cheapflights users on 11/12. 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 12/147:45 amSAN - PHL
1 stop8h 56mUnited Airlines
Wed 12/173:35 pmPHL - SAN
1 stop8h 10mUnited Airlines
Deal found 11/12$327
This Frontier deal was found by Cheapflights users on 11/11. 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.
Sun 12/211:06 pmSAN - PHL
1 stop13h 34mFrontier
Wed 12/317:10 amPHL - SAN
1 stop8h 01mFrontier
Deal found 11/11$328
This Cheapflightsfares deal was found by Cheapflights users on 11/12. 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.
Thu 11/206:25 amSAN - PHL
1 stop7h 23mFrontier
Sun 11/236:00 amPHL - SAN
1 stop29h 01mFrontier
Deal found 11/12$329
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 11/268:29 amSAN - PHL
2 stops41h 16mMultiple Airlines
Wed 12/38:00 amPHL - SAN
1 stop31h 36mMultiple Airlines
Deal found 11/10$330
This American Airlines deal was found by Cheapflights users on 11/10. 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.
Thu 12/189:23 amSAN - SBY
1 stop8h 11mAmerican Airlines
Sun 12/216:00 amSBY - SAN
1 stop10h 33mAmerican Airlines
Deal found 11/10$644

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 November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$319
(Kiwi.com)

One-way from

$161
(Cheapflightsfares)

Popular in

December

Cheapest in

October

Average price

$502
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. 11% potential increase in price ($59 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 13, 2025.
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

Tue 12/2

10:23 am-10:45 pm

1 stop9h 22m

Philadelphia

Wed 12/3

5:07 pm-10:30 pm

1 stop8h 23m

$347

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 12/9

6:40 am-9:40 pm

2 stops12h 00m

Philadelphia

Wed 12/10

4:00 pm-10:25 pm

2 stops9h 25m

$353

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 2/2

8:35 am-8:20 pm

2 stops8h 45m

Philadelphia

Sat 2/7

12:40 pm-8:20 pm

2 stops10h 40m

$368

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 12/31

10:30 pm-9:25 am

1 stop7h 55m

Philadelphia

Wed 1/7

12:11 pm-5:41 pm

1 stop8h 30m

$380

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 12/9

7:15 am-5:46 am

2 stops19h 31m

Philadelphia

Mon 12/15

6:54 pm-10:13 am

1 stop18h 19m

$381

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 12/17

2:19 pm-12:51 am

1 stop7h 32m

Philadelphia

Thu 12/25

6:05 am-1:05 pm

1 stop10h 00m

$383

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 12/2

12:08 pm-10:45 pm

1 stop7h 37m

Philadelphia

Thu 12/4

6:15 am-12:50 pm

1 stop9h 35m

$388

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 12/11

11:05 am-10:47 pm

1 stop8h 42m

Philadelphia

Sun 12/14

6:00 am-2:16 pm

2 stops11h 16m

$390

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 12/24

10:30 am-10:50 pm

2 stops9h 20m

Philadelphia

Wed 12/31

6:00 am-1:35 pm

2 stops10h 35m

$399

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 12/8

8:29 pm-5:53 pm

2 stops18h 24m

Philadelphia

Mon 12/15

6:54 pm-10:13 am

1 stop18h 19m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 25 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 55m. United Airlines provides one of the quickest options available for as low as $380. 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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