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Delaware

$129+ 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 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$221
(CheapOair)

One-way from

$129
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$423
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 April 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 April 30, 2025.

This CheapOair deal was found by Cheapflights users on 4/28. 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.
Sat 5/38:00 amSAN - PHL
1 stop19h 52mFrontier
Sat 5/1712:20 pmPHL - SAN
1 stop7h 50mFrontier
Deal found 4/28$221
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/68:00 amSAN - PHL
1 stop19h 52mMultiple Airlines
Tue 5/136:00 pmPHL - SAN
1 stop16h 13mMultiple Airlines
Deal found 4/29$223
This Mytrip deal was found by Cheapflights users on 4/27. 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.
Sat 5/36:15 amSAN - PHL
1 stop20h 37mSpirit Airlines
Tue 5/67:03 pmPHL - SAN
2 stops31h 53mSpirit Airlines
Deal found 4/27$224
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 5/276:27 amSAN - PHL
Nonstop5h 27mAmerican Airlines
Wed 6/118:39 amPHL - SAN
Nonstop5h 32mAmerican Airlines
Deal found 4/29$257
This Delta deal was found by Cheapflights users on 4/28. 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 6/2812:18 pmSAN - PHL
1 stop9h 41mDelta
Sat 7/54:02 pmPHL - SAN
1 stop8h 17mDelta
Deal found 4/28$287
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 8/262:11 pmSAN - PHL
1 stop7h 03mUnited Airlines
Sun 8/3110:30 amPHL - SAN
1 stop7h 33mUnited Airlines
Deal found 4/29$302
This Southwest deal was found by Cheapflights users on 4/29. 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 8/269:55 amSAN - PHL
2 stops8h 55mSouthwest
Sun 8/316:55 amPHL - SAN
2 stops9h 30mSouthwest
Deal found 4/29$354
This Hawaiian Airlines deal was found by Cheapflights users on 4/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/284:00 pmSAN - PHL
1 stop11h 01mHawaiian Airlines
Mon 11/37:25 amPHL - SAN
1 stop9h 52mHawaiian Airlines
Deal found 4/28$379
This American Airlines deal was found by Cheapflights users on 4/29. 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 7/269:20 amSAN - SBY
1 stop9h 47mAmerican Airlines
Wed 7/305:00 amSBY - SAN
1 stop7h 04mAmerican Airlines
Deal found 4/29$610

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 April 30, 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

Sun 5/18

6:25 am-6:52 am

1 stop21h 27m

Philadelphia

Thu 5/22

7:10 am-11:56 am

1 stop7h 46m

$221

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 5/27

11:53 am-5:07 am

1 stop14h 14m

Philadelphia

Tue 6/3

6:00 pm-11:56 pm

1 stop8h 56m

$222

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 5/10

5:43 pm-6:01 am

1 stop9h 18m

Philadelphia

Tue 5/13

6:00 pm-7:13 am

1 stop16h 13m

$224

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 5/27

6:27 am-2:54 pm

Nonstop5h 27m

Philadelphia

Wed 6/11

8:39 am-11:11 am

Nonstop5h 32m

$257

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 6/28

12:18 pm-12:59 am

1 stop9h 41m

Philadelphia

Sat 7/5

4:02 pm-9:19 pm

1 stop8h 17m

$287

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 8/26

2:11 pm-12:14 am

1 stop7h 03m

Philadelphia

Sun 8/31

10:30 am-3:03 pm

1 stop7h 33m

$302

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 8/26

9:55 am-9:50 pm

2 stops8h 55m

Philadelphia

Sun 8/31

6:55 am-1:25 pm

2 stops9h 30m

$354

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

Sat 7/26

9:20 am-10:07 pm

1 stop9h 47m

Salisbury-Ocean City

Wed 7/30

5:00 am-9:04 am

1 stop7h 04m

$610

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Tue 5/20

10:45 pm-6:57 am

Nonstop5h 12m

$129

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Thu 6/19

5:50 pm-5:44 am

1 stop8h 54m

$130

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 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

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 April 30, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest 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.
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,961 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,295 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,936 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,402 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,961 reviews

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 American Airlines, with whom users have recently found tickets for as low as $129. However, be on the lookout for offers from Spirit Airlines and Delta, 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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