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Delaware

$112+ 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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ILG
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$276
(CheapOair)

One-way from

$112
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$487
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. 6% potential increase in price ($29 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 July 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 julio 3, 2025.

This Orbitz deal was found by Cheapflights users on 7/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/216:15 amSAN - PHL
1 stop8h 12mMultiple Airlines
jue. 7/246:00 amPHL - SAN
2 stops11h 13mMultiple Airlines
Deal found 7/3$275
This CheapOair deal was found by Cheapflights users on 7/2. 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.
jue. 9/257:16 pmSAN - PHL
1 stop7h 10mSpirit Airlines
dom. 9/285:15 pmPHL - SAN
2 stops22h 17mSpirit Airlines
Deal found 7/2$276
This FlightHub deal was found by Cheapflights users on 7/3. 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.
vie. 7/117:05 pmSAN - PHL
1 stop7h 44mFrontier
lun. 7/145:48 pmPHL - SAN
1 stop25h 11mFrontier
Deal found 7/3$284
This JetBlue deal was found by Cheapflights users on 7/3. 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.
mar. 12/98:35 pmSAN - PHL
1 stop9h 01mJetBlue
lun. 12/156:00 amPHL - SAN
1 stop10h 32mJetBlue
Deal found 7/3$305
This American Airlines deal was found by Cheapflights users on 7/3. 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.
mié. 8/276:20 amSAN - PHL
Nonstop5h 35mAmerican Airlines
mié. 9/38:57 amPHL - SAN
Nonstop5h 39mAmerican Airlines
Deal found 7/3$323
This American Airlines deal was found by Cheapflights users on 7/1. 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.
mié. 8/136:20 amSAN - SBY
1 stop7h 34mAmerican Airlines
lun. 8/186:30 amSBY - SAN
1 stop7h 50mAmerican Airlines
Deal found 7/1$627

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 julio 3, 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

lun. 7/21

6:15 am-5:27 pm

1 stop8h 12m

Philadelphia

jue. 7/24

6:00 am-2:13 pm

2 stops11h 13m

$275

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

jue. 9/25

7:16 pm-5:26 am

1 stop7h 10m

Philadelphia

dom. 9/28

5:15 pm-12:32 pm

2 stops22h 17m

$276

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

dom. 7/13

8:31 am-12:02 am

1 stop12h 31m

Philadelphia

lun. 7/14

6:15 am-11:52 pm

1 stop20h 37m

$284

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mar. 12/9

8:35 pm-8:36 am

1 stop9h 01m

Philadelphia

lun. 12/15

6:00 am-1:32 pm

1 stop10h 32m

$305

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mié. 8/27

10:54 pm-7:15 am

Nonstop5h 21m

Philadelphia

mié. 9/3

6:50 pm-9:43 pm

Nonstop5h 53m

$323

San DiegoSalisbury

SAN - SBY

SANSBY

San Diego

mié. 8/13

6:20 am-4:54 pm

1 stop7h 34m

Salisbury-Ocean City

lun. 8/18

6:30 am-11:20 am

1 stop7h 50m

$627

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

dom. 10/5

7:16 pm-5:26 am

1 stop7h 10m

$112

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

vie. 7/11

11:21 am-10:09 pm

1 stop7h 48m

$120

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mar. 10/7

10:30 pm-8:39 am

1 stop7h 09m

$139

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

mar. 9/2

10:54 am-12:20 am

2 stops10h 26m

$144

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 11 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
No data available for this route at this time. Please check back soon.

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 julio 3, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and JetBlue from San Diego to Delaware to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
JetBlue
7.3
Good
2,916 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Spirit Airlines
6.3
Okay
8,086 reviews
Delta
8.0
Very good
7,982 reviews

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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 Spirit Airlines, with whom users have recently found tickets for as low as $112. However, be on the lookout for offers from Frontier 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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