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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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$257
(CheapOair)

One-way from

$90
(Frontier)

Popular in

March

Cheapest in

September

Average price

$478
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. 3% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 20, 2025.

This CheapOair deal was found by Cheapflights users on 2/19. 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.
Thu 3/209:46 pmSAN - PHL
1 stop29h 19mMultiple Airlines
Thu 3/2710:57 amPHL - SAN
2 stops23h 44mMultiple Airlines
Deal found 2/19$257
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/276:15 amSAN - PHL
2 stops14h 44mSpirit Airlines
Fri 4/410:08 pmPHL - SAN
3 stops19h 26mSpirit Airlines
Deal found 2/20$260
This Mytrip deal was found by Cheapflights users on 2/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2210:39 amSAN - PHL
1 stop15h 26mFrontier
Tue 5/2712:37 pmPHL - SAN
1 stop14h 32mFrontier
Deal found 2/20$263
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/1310:45 pmSAN - PHL
Nonstop5h 07mAmerican Airlines
Mon 3/175:30 pmPHL - SAN
Nonstop5h 54mAmerican Airlines
Deal found 2/20$323
This Delta deal was found by Cheapflights users on 2/20. 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.
Wed 8/206:15 amSAN - PHL
1 stop10h 07mDelta
Sat 8/235:15 pmPHL - SAN
1 stop8h 01mDelta
Deal found 2/20$343
This Alaska Airlines deal was found by Cheapflights users on 2/20. 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 9/267:00 amSAN - PHL
1 stop20h 01mAlaska Airlines
Tue 9/307:25 amPHL - SAN
1 stop9h 52mAlaska Airlines
Deal found 2/20$379
This Southwest deal was found by Cheapflights users on 2/20. 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.
Thu 5/153:35 pmSAN - PHL
2 stops14h 10mSouthwest
Mon 5/195:45 pmPHL - SAN
1 stop8h 25mSouthwest
Deal found 2/20$391
This Sun Country Air deal was found by Cheapflights users on 2/20. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/126:23 pmSAN - PHL
1 stop13h 47mSun Country Air
Mon 7/1412:05 pmPHL - SAN
1 stop8h 14mSun Country Air
Deal found 2/20$395
This United deal was found by Cheapflights users on 2/19. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/208:10 amSAN - PHL
2 stops13h 20mUnited Airlines
Thu 3/276:00 amPHL - SAN
2 stops10h 11mUnited Airlines
Deal found 2/19$454
This American Airlines deal was found by Cheapflights users on 2/19. 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 3/227:37 amSAN - SBY
1 stop9h 49mAmerican Airlines
Sat 3/296:37 amSBY - SAN
1 stop10h 09mAmerican Airlines
Deal found 2/19$610
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/202:00 pmSAN - SBY
3 stops18h 49mAlaska Airlines
Mon 3/2412:01 pmSBY - SAN
2 stops27h 46mAlaska Airlines
Deal found 2/19$1,548

Find flights from San Diego to Delaware within your budget

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 February 20, 2025.

Fly from

San Diego

Fly to

Delaware

Route

Depart

Return

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 3/20

9:46 pm-6:05 am

1 stop29h 19m

Philadelphia

Thu 3/27

10:57 am-7:41 am

2 stops23h 44m

$257

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 3/27

6:15 am-11:59 pm

2 stops14h 44m

Philadelphia

Fri 4/4

10:08 pm-2:34 pm

3 stops19h 26m

$260

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 5/15

11:56 am-12:38 am

1 stop9h 42m

Philadelphia

Mon 5/19

6:54 pm-11:58 pm

1 stop8h 04m

$320

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 3/13

10:45 pm-6:52 am

Nonstop5h 07m

Philadelphia

Mon 3/17

5:30 pm-8:24 pm

Nonstop5h 54m

$323

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 5/15

3:35 pm-8:45 am

2 stops14h 10m

Philadelphia

Mon 5/19

5:45 pm-11:10 pm

1 stop8h 25m

$391

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 3/20

8:10 am-12:30 am

2 stops13h 20m

Philadelphia

Thu 3/27

6:00 am-1:11 pm

2 stops10h 11m

$454

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Sat 3/22

7:37 am-8:26 pm

1 stop9h 49m

Salisbury-Ocean City

Sat 3/29

6:37 am-1:46 pm

1 stop10h 09m

$610

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sun 4/20

10:00 pm-8:51 am

1 stop7h 51m

Philadelphia

Thu 5/1

6:55 pm-11:23 pm

1 stop7h 28m

$1,149

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Thu 3/20

2:00 pm-11:49 am

3 stops18h 49m

Salisbury-Ocean City

Mon 3/24

12:01 pm-12:47 pm

2 stops27h 46m

$1,548

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 3/1

6:25 am-6:39 pm

1 stop9h 14m

$90

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 18 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.

Travel insights for flights from San Diego to Delaware

Get recent, data-driven insights about flights from San Diego to Delaware including ideal travel times, pricing trends, and more.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Delaware. Reviews last updated February 20, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from San Diego to Delaware by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,692 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,220 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

JetBlue
7.4
Good
3,070 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
8,766 reviews
Southwest
8.1
Very good
4,411 reviews

Entertainment

7.6

Boarding

8.2

Food

7.1

Comfort

8.1

Overall

8.1

Crew

8.7

Reviews

1 / 20

10.0
Excellent

Arlene,May 2024

SAN - OAK

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $90. However, be on the lookout for offers from Spirit Airlines and JetBlue, 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

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