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 $351. 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.

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.

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).

What are the most popular airlines that fly from San Diego to Delaware?

Consider British Airways, Royal Jordanian or Lufthansa when booking your flight. These represent the most popular airlines when flying from San Diego to Delaware.

What is the cheapest time of day to fly from SAN to DE?

When flying from San Diego to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

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.

$91+ Flights from San Diego to Delaware

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Cheap 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 December 26, 2025.

Wed 12/3110:48 pmSAN - PHL

Nonstop5h 07mAmerican Airlines

Wed 1/77:50 pmPHL - SAN

Nonstop6h 08mAmerican Airlines

Deal found 12/24

$356

Wed 12/3112:40 pmSAN - PHL

1 stop7h 37mDelta

Wed 1/76:00 amPHL - SAN

1 stop7h 33mDelta

Deal found 12/25

$376

Mon 12/294:47 pmSAN - PHL

1 stop9h 44mFrontier

Mon 1/55:01 pmPHL - SAN

1 stop9h 06mFrontier

Deal found 12/25

$383

Sat 12/2711:55 amSAN - PHL

1 stop6h 56mAmerican Airlines

Wed 12/316:47 pmPHL - SAN

Nonstop6h 01mAmerican Airlines

Deal found 12/25

$401

Sun 12/284:47 pmSAN - PHL

1 stop9h 44mFrontier

Sun 1/48:36 pmPHL - SAN

1 stop25h 39mFrontier

Deal found 12/24

$407

Sat 12/2712:56 pmSAN - PHL

1 stop7h 34mUnited Airlines

Wed 12/318:00 amPHL - SAN

1 stop10h 01mUnited Airlines

Deal found 12/25

$411

Sat 12/277:21 pmSAN - PHL

1 stop7h 19mFrontier

Fri 1/25:01 pmPHL - SAN

1 stop8h 59mFrontier

Deal found 12/24

$422

Sun 12/284:47 pmSAN - PHL

1 stop9h 44mFrontier

Wed 12/317:10 amPHL - SAN

1 stop8h 01mFrontier

Deal found 12/24

$432

Sat 12/277:30 pmSAN - PHL

1 stop6h 56mAmerican Airlines

Sat 1/36:00 amPHL - SAN

1 stop8h 05mAmerican Airlines

Deal found 12/25

$449

Best flights from San Diego to Delaware
Discover carefully curated flight deals from San Diego to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

Wed 2/188:35 amSAN - PHL

2 stops8h 45mSouthwest

Wed 2/255:40 amPHL - SAN

2 stops9h 45mSouthwest

Deal found 12/24

$351

Fri 1/238:42 pmSAN - PHL

1 stop18h 21mAlaska Airlines

Fri 1/307:06 pmPHL - SAN

1 stop21h 13mAlaska Airlines

Deal found 12/24

$354

Fri 1/306:55 pmSAN - PHL

2 stops10h 55mDelta

Sat 2/76:00 amPHL - SAN

2 stops13h 30mDelta

Deal found 12/25

$356

Fri 5/111:29 pmSAN - SBY

1 stop9h 03mAmerican Airlines

Sun 5/1712:01 pmSBY - SAN

1 stop9h 21mAmerican Airlines

Deal found 12/23

$664

Sat 2/2110:30 amSAN - PHL

2 stops9h 20mSouthwest

Sat 2/282:00 pmPHL - SAN

2 stops10h 40mSouthwest

Deal found 12/25

$351

Fri 1/238:42 pmSAN - PHL

1 stop18h 21mAlaska Airlines

Wed 1/287:06 pmPHL - SAN

1 stop28h 52mAlaska Airlines

Deal found 12/24

$354

Fri 1/236:55 pmSAN - PHL

2 stops10h 55mDelta

Fri 1/306:15 amPHL - SAN

2 stops11h 14mDelta

Deal found 12/24

$356

Fri 1/306:55 pmSAN - PHL

2 stops10h 55mDelta

Tue 2/36:00 amPHL - SAN

2 stops11h 29mDelta

Deal found 12/24

$356

Fri 1/308:59 pmSAN - PHL

2 stops18h 04mAlaska Airlines

Tue 2/37:06 pmPHL - SAN

1 stop18h 01mAlaska Airlines

Deal found 12/24

$359

Sat 2/77:50 amSAN - PHL

2 stops9h 30mSouthwest

Sat 2/142:00 pmPHL - SAN

2 stops10h 40mSouthwest

Deal found 12/25

$367

Fri 1/236:55 pmSAN - PHL

2 stops10h 55mDelta

Wed 1/286:00 amPHL - SAN

2 stops11h 29mDelta

Deal found 12/25

$356

Fri 1/235:06 pmSAN - PHL

2 stops21h 57mAlaska Airlines

Sat 5/237:00 amPHL - SAN

1 stop12h 08mAlaska Airlines

Deal found 12/25

$359

Thu 5/141:35 pmSAN - PHL

1 stop13h 30mDelta

Tue 5/196:15 amPHL - SAN

1 stop7h 31mDelta

Deal found 12/25

$372

Last-minute flights from San Diego to Delaware
Discover last-minute flight deals from San Diego to Delaware. Data last updated December 26, 2025 and is based on user searches.

Wed 12/3110:48 pmSAN - PHL

Nonstop5h 07mAmerican Airlines

Wed 1/77:17 amPHL - SAN

1 stop8h 51mAmerican Airlines

Deal found 12/25

$366

Thu 1/16:25 amSAN - PHL

1 stop20h 06mMultiple Airlines

Sat 1/108:10 amPHL - SAN

1 stop14h 23mMultiple Airlines

Deal found 12/25

$364

Mon 1/128:35 amSAN - PHL

2 stops8h 45mSouthwest

Wed 1/2112:15 pmPHL - SAN

2 stops8h 50mSouthwest

Deal found 12/23

$367

Mon 1/1910:00 pmSAN - PHL

1 stop7h 50mDelta

Sat 1/245:19 pmPHL - SAN

1 stop8h 13mDelta

Deal found 12/25

$357

Thu 1/229:30 pmSAN - PHL

1 stop12h 05mJetBlue

Mon 1/261:30 pmPHL - SAN

1 stop9h 50mJetBlue

Deal found 12/25

$350

Fri 1/238:42 pmSAN - PHL

1 stop18h 21mAlaska Airlines

Wed 1/287:06 pmPHL - SAN

1 stop31h 03mAlaska Airlines

Deal found 12/23

$354

Fri 1/236:55 pmSAN - PHL

2 stops10h 55mDelta

Wed 1/287:00 amPHL - SAN

1 stop8h 22mDelta

Deal found 12/24

$358

Sun 1/259:30 pmSAN - PHL

1 stop17h 53mJetBlue

Fri 1/301:30 pmPHL - SAN

1 stop9h 50mJetBlue

Deal found 12/25

$351

Thu 1/299:24 amSAN - PHL

Nonstop5h 07mAmerican Airlines

Mon 2/27:50 pmPHL - SAN

Nonstop6h 08mAmerican Airlines

Deal found 12/24

$353

Fri 1/306:55 pmSAN - PHL

2 stops10h 55mDelta

Sat 2/76:00 amPHL - SAN

2 stops13h 30mDelta

Deal found 12/25

$356

Fri 1/304:01 pmSAN - PHL

2 stops23h 02mAlaska Airlines

Tue 2/37:06 pmPHL - SAN

1 stop18h 01mAlaska Airlines

Deal found 12/25

$359

Fri 1/309:24 amSAN - PHL

Nonstop5h 07mAmerican Airlines

Sat 2/78:20 amPHL - SAN

Nonstop6h 12mAmerican Airlines

Deal found 12/25

$363

One-way flights from San Diego to Delaware
Search for one-way flight options from San Diego to Delaware. Find affordable one-way fares based on user searches. Data last updated December 26, 2025.

Thu 2/266:25 amSAN - PHL

1 stop7h 12mFrontier

Deal found 12/25

$91

Wed 2/259:45 amSAN - PHL

2 stops19h 59mMultiple Airlines

Deal found 12/25

$93

Tue 1/207:00 amSAN - PHL

2 stops38h 52mFrontier

Deal found 12/22

$100

Mon 1/196:25 amSAN - PHL

2 stops49h 49mMultiple Airlines

Deal found 12/22

$104

Sun 1/256:30 amSAN - PHL

2 stops28h 15mFrontier

Deal found 12/24

$106

Wed 2/257:11 amSAN - PHL

1 stop30h 26mFrontier

Deal found 12/25

$107

Sun 2/224:12 pmSAN - PHL

2 stops37h 32mMultiple Airlines

Deal found 12/25

$108

Mon 2/236:25 amSAN - PHL

1 stop7h 12mFrontier

Deal found 12/24

$112

Tue 2/248:00 amSAN - PHL

2 stops25h 22mFrontier

Deal found 12/25

$113

Sat 2/2111:21 amSAN - PHL

2 stops48h 22mMultiple Airlines

Deal found 12/23

$114

Wed 1/1412:00 pmSAN - PHL

2 stops19h 56mFrontier

Deal found 12/23

$116

Find flight deals from San Diego to Delaware

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$350 (Priceline)
One-way from	$91 (Frontier)
Popular in	December
Cheapest in	October
Average price	$522

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

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 ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Wed 2/18

8:35 am-8:20 pm

2 stops8h 45m

Philadelphia

Wed 2/25

5:40 am-12:25 pm

2 stops9h 45m

$351

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Sat 2/21

10:30 am-10:50 pm

2 stops9h 20m

Philadelphia

Sat 2/28

2:00 pm-9:40 pm

2 stops10h 40m

$351

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/23

8:42 pm-6:03 pm

1 stop18h 21m

Philadelphia

Fri 1/30

7:06 pm-1:19 pm

1 stop21h 13m

$354

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/23

8:42 pm-6:03 pm

1 stop18h 21m

Philadelphia

Wed 1/28

7:06 pm-8:58 pm

1 stop28h 52m

$354

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/30

6:55 pm-8:50 am

2 stops10h 55m

Philadelphia

Sat 2/7

6:00 am-4:30 pm

2 stops13h 30m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/23

6:55 pm-8:50 am

2 stops10h 55m

Philadelphia

Fri 1/30

6:15 am-2:29 pm

2 stops11h 14m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/30

6:55 pm-8:50 am

2 stops10h 55m

Philadelphia

Tue 2/3

6:00 am-2:29 pm

2 stops11h 29m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/23

6:55 pm-8:50 am

2 stops10h 55m

Philadelphia

Wed 1/28

6:00 am-2:29 pm

2 stops11h 29m

$356

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/30

8:59 pm-6:03 pm

2 stops18h 04m

Philadelphia

Tue 2/3

7:06 pm-10:07 am

1 stop18h 01m

$359

San DiegoPhiladelphia

SAN - PHL

SANPHL

San Diego

Fri 1/23

5:06 pm-6:03 pm

2 stops21h 57m

Philadelphia

Sat 5/23

7:00 am-4:08 pm

1 stop12h 08m

$359

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 24 results

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

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 $351. 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

Browse thousands of different options on Cheapflights for your next trip

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$91+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from San Diego to Delaware

Cheapest flights from San Diego to DelawareExplore 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 December 26, 2025.

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 December 26, 2025.

Find 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 December 26, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Diego to Delaware that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from San Diego to Delaware

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?

How long is the flight from San Diego to Delaware?

Can I find deals for flights from San Diego to Delaware that include hotel bookings?

How can I find direct flights from San Diego to Delaware?

Can I find deals for business class flights from San Diego to Delaware?

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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 December 26, 2025.