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Delaware

$155+ 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 11/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ILG
Oct 14 — Oct 211
Tue 10/14
Tue 10/21
1 adult, Economy
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Cheap 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 September 14, 2025.

Round-trip from

$289
(American Airlines)

One-way from

$155
(Delta)

Popular in

December

Cheapest in

January

Average price

$403
From San Francisco to Delaware
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One-way flight from San Francisco to Delaware
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Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 14, 2025.

This American Airlines deal was found by Cheapflights users on 9/12. 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 10/236:00 amSFO - PHL
Nonstop5h 24mAmerican Airlines
Sun 10/268:09 amPHL - SFO
Nonstop6h 03mAmerican Airlines
Deal found 9/12$289
This CheapOair deal was found by Cheapflights users on 9/13. 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.
Tue 10/146:34 amSFO - PHL
2 stops33h 10mFrontier
Tue 10/211:02 pmPHL - SFO
2 stops36h 25mFrontier
Deal found 9/13$290
This CheapOair deal was found by Cheapflights users on 9/12. 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 10/166:34 amSFO - PHL
2 stops29h 39mFrontier
Mon 10/206:42 amPHL - SFO
1 stop20h 32mFrontier
Deal found 9/12$291
This CheapOair deal was found by Cheapflights users on 9/12. 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.
Wed 10/156:34 amSFO - PHL
1 stop19h 45mFrontier
Sun 10/1911:30 amPHL - SFO
1 stop31h 30mFrontier
Deal found 9/12$292
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Fri 9/2611:00 pmSFO - PHL
1 stop15h 27mFrontier
Sun 9/288:10 amPHL - SFO
2 stops16h 32mFrontier
Deal found 9/12$293
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 10/1110:23 pmSFO - PHL
1 stop9h 37mMultiple Airlines
Tue 10/147:00 amPHL - SFO
1 stop9h 44mMultiple Airlines
Deal found 9/11$294
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/149:04 pmSFO - PHL
Nonstop5h 22mUnited Airlines
Wed 11/128:15 amPHL - SFO
1 stop9h 36mUnited Airlines
Deal found 9/13$295
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Wed 10/2211:25 pmSFO - PHL
1 stop10h 25mAmerican Airlines
Sat 10/258:09 amPHL - SFO
Nonstop6h 03mAmerican Airlines
Deal found 9/12$296
This Delta deal was found by Cheapflights users on 9/14. 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.
Tue 10/1412:35 amSFO - PHL
1 stop7h 21mDelta
Tue 10/215:02 pmPHL - SFO
1 stop8h 32mDelta
Deal found 9/14$297
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Wed 10/2212:43 amSFO - PHL
1 stop8h 12mUnited Airlines
Tue 11/46:25 pmPHL - SFO
Nonstop6h 25mUnited Airlines
Deal found 9/11$299
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Mon 9/2211:00 pmSFO - PHL
1 stop11h 50mFrontier
Sat 11/226:00 amPHL - SFO
1 stop21h 24mFrontier
Deal found 9/12$300
This Frontier deal was found by Cheapflights users on 9/13. 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.
Sun 9/2111:00 pmSFO - PHL
1 stop8h 56mFrontier
Fri 9/2612:59 pmPHL - SFO
1 stop11h 22mFrontier
Deal found 9/13$301

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 September 14, 2025.
Use the filters below to find and compare flights from San Francisco to Delaware that are best for you.

Fly from

San Francisco

Fly to

Delaware

Route

Depart

Return

Price

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sun 10/5

9:04 pm-5:26 am

Nonstop5h 22m

Philadelphia

Fri 10/24

6:29 pm-9:32 pm

Nonstop6h 03m

$289

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 10/10

9:04 pm-5:26 am

Nonstop5h 22m

Philadelphia

Tue 10/14

6:29 pm-9:32 pm

Nonstop6h 03m

$289

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 12/3

11:15 am-7:41 pm

Nonstop5h 26m

Philadelphia

Mon 12/8

8:05 pm-1:15 am

1 stop8h 10m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Tue 10/7

10:45 pm-9:46 am

1 stop8h 01m

Philadelphia

Tue 10/14

6:29 pm-9:32 pm

Nonstop6h 03m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 2/5

12:43 am-11:35 am

1 stop7h 52m

Philadelphia

Thu 2/12

8:30 am-12:01 pm

Nonstop6h 31m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sat 11/1

6:00 am-5:38 pm

1 stop8h 38m

Philadelphia

Tue 11/4

12:10 pm-5:22 pm

1 stop8h 12m

$303

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 11/7

6:00 am-5:38 pm

1 stop8h 38m

Philadelphia

Tue 11/11

2:30 pm-10:57 pm

1 stop11h 27m

$303

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Mon 2/23

12:40 am-10:43 am

1 stop7h 03m

Philadelphia

Tue 3/3

6:10 pm-11:51 pm

1 stop8h 41m

$303

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sat 10/4

5:13 pm-5:40 am

1 stop9h 27m

Philadelphia

Tue 10/7

7:00 am-1:44 pm

1 stop9h 44m

$308

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 3/4

6:00 am-5:31 pm

1 stop8h 31m

Philadelphia

Sat 3/7

6:35 pm-8:11 am

1 stop16h 36m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 27 results
1
2
3

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.

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 September 14, 2025.
Read reviews from past customers who have flown American Airlines from San Francisco to Delaware. 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.
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac
American Airlines
7.2
Good
10,000 reviews
American Airlines
7.2
Good
10,000 reviews

Entertainment

6.9

Comfort

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Overall

7.2

Reviews

1 / 20
2.0
Mediocre

Jeremy,Sep 2025

SAN - PHL

Terrible. Bad customer service and unacceptable delay on the tarmac

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 11.8 mi from the center of the city.

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

    United Airlines and American Airlines can get you from San Francisco to Delaware in just under 5h 22m. Your travel time can differ by up to 11h 22m. 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.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Francisco to Delaware

Discover the top airline that operate flights from San Francisco to Delaware. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$289Average$390FlexibilityNo cancel feeOn-time71%

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