HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Delaware

$159+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ILG
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Francisco to Delaware with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/611:15 amSFO - PHL
Nonstop5h 26mUnited Airlines
Mon 12/86:15 amPHL - SFO
Nonstop6h 25mUnited Airlines
Deal found 10/29$289
This Booking.com deal was found by Cheapflights users on 10/30. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:02 amSFO - PHL
1 stop17h 47mFrontier
Tue 11/256:00 amPHL - SFO
1 stop29h 08mFrontier
Deal found 10/30$291
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/158:00 amSFO - PHL
1 stop8h 07mMultiple Airlines
Thu 11/206:00 amPHL - SFO
2 stops18h 08mMultiple Airlines
Deal found 10/29$292
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/611:33 pmSFO - PHL
1 stop8h 45mMultiple Airlines
Thu 1/297:00 amPHL - SFO
2 stops27h 48mMultiple Airlines
Deal found 10/29$293
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sun 12/148:22 pmSFO - PHL
2 stops30h 09mFrontier
Sun 12/217:10 amPHL - SFO
1 stop27h 38mFrontier
Deal found 10/29$295
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 11/206:00 amSFO - PHL
2 stops26h 27mFrontier
Wed 12/36:32 pmPHL - SFO
1 stop21h 46mFrontier
Deal found 10/29$296
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/256:24 amSFO - PHL
1 stop20h 07mFrontier
Sun 12/287:10 amPHL - SFO
1 stop27h 38mFrontier
Deal found 10/29$298
This United Airlines deal was found by Cheapflights users on 10/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/611:20 pmSFO - PHL
1 stop7h 15mUnited Airlines
Wed 12/106:15 amPHL - SFO
Nonstop6h 25mUnited Airlines
Deal found 10/28$299
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 12/176:00 amSFO - PHL
1 stop20h 40mFrontier
Mon 12/227:10 amPHL - SFO
1 stop17h 39mFrontier
Deal found 10/29$300
This CheapOair deal was found by Cheapflights users on 10/29. 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 11/110:23 pmSFO - PHL
1 stop11h 01mFrontier
Sat 11/86:19 amPHL - SFO
1 stop30h 14mFrontier
Deal found 10/29$302
This American Airlines deal was found by Cheapflights users on 10/29. 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 12/156:30 amSFO - PHL
Nonstop5h 17mAmerican Airlines
Sun 12/217:00 pmPHL - SFO
Nonstop6h 26mAmerican Airlines
Deal found 10/29$303
This Kiwi.com deal was found by Cheapflights users on 10/29. 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.
Sun 12/74:07 pmSFO - PHL
1 stop10h 24mMultiple Airlines
Thu 1/297:00 amPHL - SFO
2 stops27h 48mMultiple Airlines
Deal found 10/29$304

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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$289
(United Airlines)

One-way from

$159
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$438
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. 10% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 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

Thu 2/12

11:05 pm-7:15 am

Nonstop5h 10m

Philadelphia

Mon 2/16

8:35 am-12:06 pm

Nonstop6h 31m

$289

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 12/10

11:15 am-7:41 pm

Nonstop5h 26m

Philadelphia

Sat 12/13

6:30 am-1:35 pm

1 stop10h 05m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 2/11

11:15 pm-10:24 am

1 stop8h 09m

Philadelphia

Mon 2/16

8:35 am-12:06 pm

Nonstop6h 31m

$299

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sun 12/7

10:45 pm-8:44 am

1 stop6h 59m

Philadelphia

Sat 1/31

12:23 pm-6:38 pm

1 stop9h 15m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Sun 11/23

10:45 pm-8:42 am

1 stop6h 57m

Philadelphia

Thu 11/27

7:10 am-12:18 pm

1 stop8h 08m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Mon 12/1

12:30 am-10:53 am

1 stop7h 23m

Philadelphia

Tue 12/9

6:55 am-2:47 pm

1 stop10h 52m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Tue 4/28

10:30 pm-9:27 am

1 stop7h 57m

Philadelphia

Sat 5/2

9:42 am-2:29 pm

1 stop7h 47m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 2/11

8:25 am-6:54 pm

1 stop7h 29m

Philadelphia

Sun 2/15

10:06 am-3:51 pm

1 stop8h 45m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Fri 12/5

12:30 am-10:55 am

1 stop7h 25m

Philadelphia

Tue 12/9

2:24 pm-8:59 pm

1 stop9h 35m

$309

San FranciscoPhiladelphia

SFO - PHL

SFOPHL

San Francisco

Wed 3/18

5:00 pm-5:39 am

1 stop9h 39m

Philadelphia

Tue 3/31

6:30 pm-11:55 pm

1 stop8h 25m

$309

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 October 30, 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
11,034 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

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
11,034 reviews
American Airlines
7.2
Good
11,034 reviews

Comfort

7.2

Boarding

7.5

Food

6.4

Overall

7.2

Entertainment

6.9

Crew

8.0

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 Delta can get you from San Francisco to Delaware in just under 5h 10m. Your travel time can differ by up to 1h 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 Southwest, with whom users have recently found tickets for as low as $160. However, be on the lookout for offers from Sun Country Air and JetBlue, 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Delaware

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to John F Kennedy Intl flights
San Francisco to John F Kennedy Intl flights
Los Angeles to Dallas/Fort Worth flights
Los Angeles to Newark flights
San Francisco to Los Angeles flights
San Francisco to Newark flights
Los Angeles to San Francisco flights
Los Angeles to Seattle flights
Los Angeles to Honolulu flights
Los Angeles to LaGuardia flights
San Francisco to Las Vegas flights
San Francisco to Ontario flights
San Francisco to Honolulu flights
San Francisco to Dallas/Fort Worth flights
San Francisco to Seattle flights
San Francisco to LaGuardia flights
Los Angeles to Miami flights
San Francisco to Santa Ana flights
Los Angeles to Las Vegas flights
Los Angeles to Orlando flights
Los Angeles to O'Hare Intl flights
Santa Ana to Seattle flights
Santa Ana to San Francisco flights
Los Angeles to Fort Lauderdale flights
Ontario to Dallas/Fort Worth flights
Ontario to Seattle flights
San Jose to Los Angeles flights
San Francisco to O'Hare Intl flights
Los Angeles to Boston flights
Burbank to Las Vegas flights
San Diego to John F Kennedy Intl flights
San Jose to Las Vegas flights
Ontario to San Francisco flights
Los Angeles to Sacramento flights
Los Angeles to Portland flights
Los Angeles to Reagan-National flights
Ontario to Las Vegas flights
Santa Ana to Las Vegas flights
Los Angeles to Sky Harbor Intl flights
Santa Ana to Dallas/Fort Worth flights
Los Angeles to Dulles Intl flights
San Francisco to Kahului flights
San Francisco to Miami flights
Los Angeles to Denver flights
Los Angeles to Atlanta flights
Los Angeles to Hobby flights
Ontario to John F Kennedy Intl flights
Los Angeles to San Jose flights
San Diego to Seattle flights
Sacramento to Los Angeles flights

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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$289Average$389FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.