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Delaware

$140+ 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 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ILG
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
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 January 28, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 3/1911:05 pm
SFO
-
PHL
Nonstop5h 10m
United Airlines
Tue 3/248:46 am
PHL
-
SFO
Nonstop6h 31m
United Airlines
Deal found 1/26$289
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1911:49 pm
SFO
-
PHL
Nonstop5h 19m
American Airlines
Wed 2/257:17 pm
PHL
-
SFO
Nonstop6h 32m
American Airlines
Deal found 1/27$290
This JetBlue deal was found by Cheapflights users on 1/27. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1310:55 am
SFO
-
PHL
1 stop9h 34m
JetBlue
Tue 2/171:33 pm
PHL
-
SFO
1 stop13h 26m
JetBlue
Deal found 1/27$291
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2411:50 am
SFO
-
PHL
Nonstop5h 20m
American Airlines
Tue 3/37:17 pm
PHL
-
SFO
Nonstop6h 32m
American Airlines
Deal found 1/27$292
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2610:46 pm
SFO
-
PHL
1 stop16h 25m
Frontier
Sat 2/2812:28 pm
PHL
-
SFO
1 stop12h 53m
Frontier
Deal found 1/27$293
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:38 pm
SFO
-
PHL
1 stop9h 21m
Frontier
Tue 3/1711:52 am
PHL
-
SFO
1 stop10h 22m
Frontier
Deal found 1/27$294
This Expedia deal was found by Cheapflights users on 1/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/110:23 pm
SFO
-
PHL
1 stop9h 30m
Frontier
Sun 4/58:25 pm
PHL
-
SFO
1 stop26h 45m
Frontier
Deal found 1/28$295
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1310:38 pm
SFO
-
PHL
1 stop9h 21m
Frontier
Mon 3/168:25 pm
PHL
-
SFO
2 stops28h 13m
Frontier
Deal found 1/27$296
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 4/610:03 pm
SFO
-
PHL
1 stop9h 50m
Frontier
Wed 4/155:05 am
PHL
-
SFO
2 stops19h 29m
Frontier
Deal found 1/26$297
This CheapOair deal was found by Cheapflights users on 1/28. 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 5/166:00 am
SFO
-
PHL
1 stop20h 34m
Frontier
Tue 5/198:25 pm
PHL
-
SFO
1 stop30h 00m
Frontier
Deal found 1/28$298
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/195:10 am
SFO
-
PHL
1 stop7h 41m
United Airlines
Mon 2/236:20 pm
PHL
-
SFO
Nonstop6h 30m
United Airlines
Deal found 1/26$299
This Frontier deal was found by Cheapflights users on 1/26. 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 4/47:08 pm
SFO
-
PHL
1 stop7h 22m
Frontier
Mon 4/209:17 am
PHL
-
SFO
1 stop10h 37m
Frontier
Deal found 1/26$300

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 January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$140
(Alaska Airlines)

Popular in

December

Cheapest in

March

Average price

$457
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. 14% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 28, 2026.
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

Thu 3/19

11:05 pm-7:15 am

Nonstop5h 10m

Philadelphia

Mon 3/23

6:20 pm-9:50 pm

Nonstop6h 30m

$289

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 2/18

1:12 pm-9:33 pm

Nonstop5h 21m

Philadelphia

Sun 2/22

8:35 am-12:06 pm

Nonstop6h 31m

$289

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 2/26

11:59 pm-11:37 am

1 stop8h 38m

Philadelphia

Sat 2/28

6:20 pm-9:50 pm

Nonstop6h 30m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 4/17

11:35 pm-8:15 am

Nonstop5h 40m

Philadelphia

Mon 4/20

6:47 pm-12:19 am

1 stop8h 32m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Mon 5/4

11:20 pm-8:00 am

Nonstop5h 40m

Philadelphia

Fri 5/15

6:34 pm-12:30 am

1 stop8h 56m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 5/29

11:30 pm-10:30 am

1 stop8h 00m

Philadelphia

Wed 6/10

9:25 am-12:34 pm

Nonstop6h 09m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Tue 3/3

9:20 pm-9:48 am

1 stop9h 28m

Philadelphia

Sat 3/7

6:20 pm-9:50 pm

Nonstop6h 30m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Thu 2/19

5:10 am-3:51 pm

1 stop7h 41m

Philadelphia

Mon 2/23

6:20 pm-9:50 pm

Nonstop6h 30m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 4/1

8:40 am-5:15 pm

Nonstop5h 35m

Philadelphia

Sun 4/5

6:12 am-9:30 am

Nonstop6h 18m

$301

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sun 7/26

11:05 pm-7:45 am

Nonstop5h 40m

Philadelphia

Tue 8/4

6:20 am-12:18 pm

1 stop8h 58m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 26 results
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2
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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.

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 January 28, 2026.
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
11,201 reviews

Boarding

7.5

Crew

8.0

Overall

7.2

Comfort

7.2

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.
American Airlines
7.2
Good
11,201 reviews
American Airlines
7.2
Good
11,201 reviews

Boarding

7.5

Crew

8.0

Overall

7.2

Comfort

7.2

Entertainment

6.9

Food

6.4

Reviews

1 / 20
2.0
Mediocre

Susie,Jan 2026

CLT - TPA

This flight was delayed 3 or 4 times. We had boarded the plane, sat on plane for a good 30 minutes, then we had to board the aircraft, walk to a different gate, wait and then board another aircraft. We arrived in Tampa 4 hours later than the original booking. I feel there should have been some sort of compensation especially for the advantage members.

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 10m. Your travel time can differ by up to 4h 49m. 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 $298. However, be on the lookout for offers from Qatar Airways and American Airlines, 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$289Average$389FlexibilityNo cancel feeOn-time71%

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