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Delaware

$157+ Cheap flights from San Francisco (SFO) 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ILG
Jul 8 — Jul 151
Wed 7/8
Wed 7/15
1 adult, Economy
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Cheap flight deals from San Francisco to Delaware

Cheapest flights from San Francisco to Delaware
Explore the most affordable flight options available from San Francisco to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.

This Alaska Airlines deal was found by Cheapflights users on 6/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/144:18 pm
SFO
-
PHL
1 stop10h 22m
Alaska Airlines
Tue 11/104:25 pm
PHL
-
SFO
1 stop9h 57m
Alaska Airlines
Deal found 6/3$349
This Frontier deal was found by Cheapflights users on 6/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:10 pm
SFO
-
PHL
1 stop11h 13m
Frontier
Fri 6/191:32 pm
PHL
-
SFO
1 stop9h 23m
Frontier
Deal found 6/7$350
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 7/157:08 pm
SFO
-
PHL
2 stops14h 14m
Frontier
Wed 7/2911:06 am
PHL
-
SFO
1 stop11h 46m
Frontier
Deal found 6/4$351
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/284:30 pm
SFO
-
PHL
1 stop10h 30m
Frontier
Tue 8/44:30 pm
PHL
-
SFO
2 stops34h 48m
Frontier
Deal found 6/3$352
This CheapOair deal was found by Cheapflights users on 6/7. 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.
Sat 7/48:35 pm
SFO
-
PHL
2 stops32h 13m
Multiple Airlines
Fri 7/101:32 pm
PHL
-
SFO
1 stop8h 46m
Multiple Airlines
Deal found 6/7$353
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:20 pm
SFO
-
PHL
Nonstop5h 30m
United Airlines
Sat 7/49:25 am
PHL
-
SFO
Nonstop6h 09m
United Airlines
Deal found 6/7$354
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 7/35:30 pm
SFO
-
PHL
1 stop9h 01m
United Airlines
Sun 9/206:00 am
PHL
-
SFO
Nonstop6h 03m
United Airlines
Deal found 6/4$355
This American Airlines deal was found by Cheapflights users on 6/7. 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.
Mon 6/299:10 pm
SFO
-
PHL
Nonstop5h 28m
American Airlines
Tue 7/79:50 pm
PHL
-
SFO
Nonstop6h 09m
American Airlines
Deal found 6/7$357
This Kiwi.com deal was found by Cheapflights users on 6/4. 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.
Tue 7/144:30 pm
SFO
-
PHL
1 stop10h 30m
Frontier
Wed 7/2911:06 am
PHL
-
SFO
1 stop11h 46m
Frontier
Deal found 6/4$358
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/164:42 pm
SFO
-
PHL
Nonstop5h 41m
United Airlines
Sun 7/196:00 am
PHL
-
SFO
Nonstop5h 58m
United Airlines
Deal found 6/7$359
This Frontier deal was found by Cheapflights users on 6/4. 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.
Sat 6/610:10 pm
SFO
-
PHL
1 stop11h 15m
Frontier
Fri 6/121:32 pm
PHL
-
SFO
1 stop9h 23m
Frontier
Deal found 6/4$360
This Frontier deal was found by Cheapflights users on 6/6. 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.
Wed 6/1710:10 pm
SFO
-
PHL
1 stop11h 13m
Frontier
Tue 6/238:30 am
PHL
-
SFO
1 stop14h 25m
Frontier
Deal found 6/6$362

Find flight deals from San Francisco to Delaware

Keep the following information in mind while searching for San Francisco to Delaware flight deals. Data was last updated June 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$349
(United Airlines)

One-way from

$157
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$455
Provider with most accurate pricing for San Francisco-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Philadelphia flights.
Search Deals
From San Francisco to Delaware
Search Deals
One-way flight from San Francisco to Delaware
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco 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 June 8, 2026.
Use the filters below to find and compare flights from San Francisco to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 7/10

4:42 pm-1:23 am

Nonstop5h 41m

Philadelphia

Sun 7/12

6:00 am-8:58 am

Nonstop5h 58m

$349

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Mon 7/6

5:30 pm-5:31 am

1 stop9h 01m

Philadelphia

Sat 7/11

6:00 am-8:58 am

Nonstop5h 58m

$355

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 8/13

11:30 pm-10:07 am

1 stop7h 37m

Philadelphia

Sun 8/16

6:00 am-9:03 am

Nonstop6h 03m

$369

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Tue 7/7

11:40 pm-12:10 pm

1 stop9h 30m

Philadelphia

Tue 7/14

1:50 pm-10:15 pm

2 stops11h 25m

$394

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 8/21

12:25 pm-8:55 pm

Nonstop5h 30m

Philadelphia

Mon 8/24

6:00 am-9:03 am

Nonstop6h 03m

$399

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 7/3

6:05 am-7:45 pm

2 stops10h 40m

Philadelphia

Tue 7/7

4:35 pm-11:30 pm

2 stops9h 55m

$453
Quickest round-trip

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 7/16

11:20 pm-7:50 am

Nonstop5h 30m

Philadelphia

Tue 7/21

6:00 am-8:58 am

Nonstop5h 58m

$459

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 6/24

6:00 am-6:40 pm

2 stops9h 40m

Philadelphia

Thu 7/2

12:35 pm-11:25 pm

1 stop13h 50m

$460

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 7/16

5:07 pm-6:15 am

1 stop10h 08m

Philadelphia

Wed 7/29

6:10 am-3:44 pm

2 stops12h 34m

$463

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 7/1

5:30 am-6:00 pm

1 stop9h 30m

Philadelphia

Thu 7/9

5:00 am-11:20 am

2 stops9h 20m

$467

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/3

Showing 1-10 of 33 resultsSorted by cheapest first
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Best time to book a flight from San Francisco to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from San Francisco 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 Francisco 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 Francisco 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 Francisco to Delaware?

    For a flight from San Francisco to Delaware, you will be flying from San Francisco. San Francisco (SFO) is just 11.0 mi from the center of the city.

  • How long is the flight from San Francisco to Delaware?

    United Airlines, Southwest, and American Airlines can get you from San Francisco to Delaware in just under 5h 41m. Your travel time can differ by up to 4h 32m. The distance from San Francisco to Delaware is about 2513 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airline one-way is Turkish Airlines, with whom users have recently found tickets for as low as $396. However, be on the lookout for offers from American Airlines and Royal Jordanian, as they are both options that can get you from San Francisco to Delaware for a low price.

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

    Yes. In addition to deals on San Francisco to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Delaware.

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

    Yes. Cheapflights offers flight deals from San Francisco 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 Francisco to Delaware

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