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Delaware

$72+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
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 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$348
(Kiwi.com)

One-way from

$72
(Cheapflightsfares)

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
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Highest demand for flights based on searches. 7% potential increase in price ($34 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 8, 2026.

This CheapOair deal was found by Cheapflights users on 1/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/318:25 pmSAN - PHL
1 stop8h 35mJetBlue
Sun 4/56:00 amPHL - SAN
1 stop31h 08mJetBlue
Deal found 1/6$345
This CheapOair deal was found by Cheapflights users on 1/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:34 pmSAN - PHL
1 stop14h 33mJetBlue
Sat 2/286:00 amPHL - SAN
1 stop16h 28mJetBlue
Deal found 1/6$346
This Southwest deal was found by Cheapflights users on 1/6. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:45 amSAN - PHL
1 stop11h 05mSouthwest
Sat 2/215:30 amPHL - SAN
1 stop8h 10mSouthwest
Deal found 1/6$347
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 3/196:55 amSAN - PHL
2 stops14h 57mFrontier
Fri 3/272:41 pmPHL - SAN
1 stop12h 35mFrontier
Deal found 1/7$348
This Expedia deal was found by Cheapflights users on 1/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/206:55 amSAN - PHL
1 stop13h 13mMultiple Airlines
Sun 3/226:00 amPHL - SAN
1 stop10h 06mMultiple Airlines
Deal found 1/6$349
This Frontier deal was found by Cheapflights users on 1/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/96:25 amSAN - PHL
1 stop8h 02mFrontier
Sun 1/114:19 pmPHL - SAN
1 stop10h 30mFrontier
Deal found 1/6$350
This Kiwi.com deal was found by Cheapflights users on 1/6. 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.
Wed 2/187:11 amSAN - PHL
1 stop30h 26mFrontier
Sun 2/225:42 pmPHL - SAN
1 stop9h 26mFrontier
Deal found 1/6$351
This CheapOair deal was found by Cheapflights users on 1/7. 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 1/239:30 pmSAN - PHL
1 stop18h 08mJetBlue
Wed 1/288:40 amPHL - SAN
1 stop14h 40mJetBlue
Deal found 1/7$355
This CheapOair deal was found by Cheapflights users on 1/7. 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.
Sun 1/259:30 pmSAN - PHL
1 stop12h 05mJetBlue
Fri 1/301:30 pmPHL - SAN
1 stop9h 50mJetBlue
Deal found 1/7$356
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Fri 2/279:56 pmSAN - PHL
Nonstop5h 04mAmerican Airlines
Sat 2/288:30 amPHL - SAN
Nonstop6h 07mAmerican Airlines
Deal found 1/6$358
This Alaska Airlines deal was found by Cheapflights users on 1/6. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/307:03 pmSAN - PHL
1 stop20h 00mAlaska Airlines
Tue 2/37:06 pmPHL - SAN
2 stops22h 05mAlaska Airlines
Deal found 1/6$359
This American Airlines deal was found by Cheapflights users on 1/7. 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 2/77:00 amSAN - SBY
1 stop9h 55mAmerican Airlines
Sat 2/146:00 amSBY - SAN
1 stop10h 38mAmerican Airlines
Deal found 1/7$721

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 8, 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

Mon 3/16

12:35 pm-12:55 am

2 stops9h 20m

Philadelphia

Tue 3/24

2:10 pm-9:15 pm

2 stops10h 05m

$350

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 2/17

6:45 am-8:50 pm

1 stop11h 05m

Philadelphia

Sat 2/21

12:10 pm-7:40 pm

2 stops10h 30m

$352

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 2/23

6:45 pm-8:50 am

2 stops11h 05m

Philadelphia

Sat 2/28

7:00 am-4:24 pm

2 stops12h 24m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 2/13

11:20 am-11:25 pm

2 stops9h 05m

Philadelphia

Wed 2/18

12:15 pm-7:40 pm

2 stops10h 25m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 2/19

6:45 pm-8:50 am

2 stops11h 05m

Philadelphia

Mon 2/23

2:31 pm-8:37 pm

1 stop9h 06m

$379

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 6/9

6:35 am-5:00 pm

1 stop7h 25m

Philadelphia

Tue 6/23

12:55 pm-7:00 pm

2 stops9h 05m

$381

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 2/13

10:10 pm-8:50 am

1 stop7h 40m

Philadelphia

Tue 2/17

4:59 pm-10:48 pm

1 stop8h 49m

$383

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 2/13

2:15 pm-12:24 am

1 stop7h 09m

Philadelphia

Wed 2/18

4:59 pm-10:48 pm

1 stop8h 49m

$383

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 3/17

7:05 pm-5:41 am

1 stop7h 36m

Philadelphia

Sun 3/22

6:00 am-11:08 am

1 stop8h 08m

$383

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Mon 3/16

6:21 am-4:33 pm

1 stop7h 12m

Philadelphia

Sat 3/21

6:00 pm-11:09 pm

1 stop8h 09m

$383

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 28 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 9h 20m. Southwest provides one of the quickest options available for as low as $350. 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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