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Delaware

$160+ 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 12/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
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 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 12/181:06 pmSAN - PHL
1 stop13h 34mFrontier
Tue 12/235:10 amPHL - SAN
2 stops21h 37mFrontier
Deal found 11/5$323
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Thu 11/276:35 amSAN - PHL
Nonstop5h 14mAmerican Airlines
Sat 12/66:40 pmPHL - SAN
Nonstop6h 04mAmerican Airlines
Deal found 11/6$324
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Wed 12/36:25 amSAN - PHL
2 stops25h 53mFrontier
Sun 12/74:12 pmPHL - SAN
1 stop10h 39mFrontier
Deal found 11/5$325
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 12/306:25 amSAN - PHL
1 stop15h 59mFrontier
Sat 1/105:57 pmPHL - SAN
2 stops22h 58mFrontier
Deal found 11/6$329
This American Airlines deal was found by Cheapflights users on 11/6. 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.
Wed 12/39:23 amSAN - PHL
Nonstop5h 16mAmerican Airlines
Thu 12/46:40 pmPHL - SAN
Nonstop6h 04mAmerican Airlines
Deal found 11/6$330
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/210:30 pmSAN - PHL
1 stop7h 57mDelta
Sat 12/66:18 amPHL - SAN
2 stops13h 02mDelta
Deal found 11/5$331
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 12/207:21 pmSAN - PHL
2 stops27h 03mFrontier
Fri 1/27:10 amPHL - SAN
1 stop8h 28mFrontier
Deal found 11/4$332
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Thu 11/131:21 pmSAN - PHL
1 stop17h 47mMultiple Airlines
Mon 11/173:59 pmPHL - SAN
2 stops31h 25mMultiple Airlines
Deal found 11/5$333
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Sun 12/211:06 pmSAN - PHL
1 stop13h 34mFrontier
Sat 12/278:41 pmPHL - SAN
2 stops42h 57mFrontier
Deal found 11/5$334
This JetBlue deal was found by Cheapflights users on 11/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/98:31 pmSAN - PHL
1 stop10h 08mJetBlue
Tue 12/1610:24 amPHL - SAN
1 stop11h 57mJetBlue
Deal found 11/6$335
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 12/214:47 pmSAN - PHL
1 stop9h 44mFrontier
Tue 12/238:00 amPHL - SAN
2 stops18h 59mFrontier
Deal found 11/6$336
This JetBlue deal was found by Cheapflights users on 11/6. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:31 pmSAN - PHL
1 stop10h 08mJetBlue
Tue 12/1610:24 amPHL - SAN
1 stop11h 57mJetBlue
Deal found 11/6$337

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 6, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$323
(American Airlines)

One-way from

$160
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$472
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. 9% potential increase in price ($43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 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 6, 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 3/24

2:40 pm-5:23 am

1 stop11h 43m

Philadelphia

Tue 3/31

7:00 am-4:32 pm

1 stop12h 32m

$342

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 11/27

6:15 am-5:37 pm

1 stop8h 22m

Philadelphia

Sat 12/6

6:18 am-11:14 am

1 stop7h 56m

$343

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 1/21

11:43 am-11:15 pm

1 stop8h 32m

Philadelphia

Sun 2/15

6:00 am-10:33 am

1 stop7h 33m

$343

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 12/9

6:15 am-5:02 pm

1 stop7h 47m

Philadelphia

Wed 12/17

10:32 am-3:21 pm

1 stop7h 49m

$343

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 11/27

6:35 am-2:49 pm

Nonstop5h 14m

Philadelphia

Sat 12/6

6:40 pm-9:44 pm

Nonstop6h 04m

$344

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 1/17

6:50 am-11:27 pm

2 stops13h 37m

Philadelphia

Sun 1/25

6:00 am-2:29 pm

2 stops11h 29m

$366

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 12/27

10:48 pm-6:58 am

Nonstop5h 10m

Philadelphia

Sat 1/3

7:15 am-11:29 am

1 stop7h 14m

$380

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 1/19

10:00 pm-8:52 am

1 stop7h 52m

Philadelphia

Sat 2/14

5:23 pm-11:04 pm

1 stop8h 41m

$390

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 12/31

12:40 pm-11:17 pm

1 stop7h 37m

Philadelphia

Wed 1/7

12:41 pm-7:00 pm

1 stop9h 19m

$390

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 11/25

6:25 am-2:23 pm

2 stops28h 58m

Philadelphia

Mon 12/1

8:00 am-5:55 pm

1 stop12h 55m

$393

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 22 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 5h 14m. Alaska Airlines provides one of the quickest options available for as low as $344. 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.

  • What are the cheapest airlines to fly from San Diego to Delaware one-way?

    The cheapest airline one-way is Alaska Airlines, with whom users have recently found tickets for as low as $164. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from San Diego to Delaware for a low price.

  • 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

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