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Cheap flights from Washington, D.C. to San Francisco from £116

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SFO
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. to San Francisco are usually found in February or January, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Washington, D.C. to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Washington, D.C. to San Francisco
Explore the most affordable flight options available from Washington, D.C. to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 11 August 2026.

Tue 1/908:55 -
Nonstop5h 40m
Wed 30/922:30 -
Nonstop5h 05m
Deal found 10/8£238
Wed 11/1117:50 -
1 stop9h 05m
Mon 16/1106:00 -
2 stops8h 35m
Deal found 10/8£240
Sat 5/915:05 -
1 stop9h 25m
Tue 8/923:05 -
1 stop9h 30m
Deal found 10/8£241
Sat 5/908:10 -
Nonstop5h 45m
Fri 11/918:15 -
1 stop9h 20m
Deal found 7/8£242
Wed 2/910:50 -
2 stops9h 30m
Sat 12/905:00 -
2 stops12h 25m
Deal found 10/8£243
Thu 12/1116:00 -
2 stops10h 20m
Mon 16/1111:35 -
1 stop7h 10m
Deal found 10/8£244
Thu 12/1116:00 -
2 stops10h 20m
Sat 14/1110:05 -
2 stops10h 30m
Deal found 10/8£248
Thu 24/906:00 -
1 stop14h 17m
Thu 1/1009:00 -
2 stops12h 10m
Deal found 10/8£267
Fri 23/1016:55 -
2 stops9h 15m
Mon 26/1020:00 -
2 stops9h 30m
Deal found 10/8£267
Mon 31/818:40 -
1 stop8h 05m
Tue 1/905:40 -
2 stops10h 30m
Deal found 11/8£275
Tue 1/918:59 -
Nonstop5h 55m
Wed 30/911:42 -
1 stop7h 17m
Deal found 7/8£276
Sun 6/906:05 -
1 stop7h 45m
Wed 9/919:10 -
2 stops10h 20m
Deal found 9/8£279

Find flight deals from Washington, D.C. to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 11 August 2026.

Round-trip from

£238

One-way from

£116

Popular in

June

Cheapest in

February

Average price

£353
Southwest
  • Southwest
  • 1/9-30/9
  • Nonstop
  • 10h 45m total
  • Washington, D.C. to San Francisco
Search Deals
Frontier
  • Frontier
  • 18/9
  • 2 total stops
  • 26h 55m total
  • Washington, D.C. to San Francisco
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£19 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to San Francisco 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 858,174 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from Washington, D.C. to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Thu 24/9

08:05-10:56

Nonstop5h 51m

San Francisco

Mon 28/9

22:57-07:20

Nonstop5h 23m

£256
Fastest return journey

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Tue 1/9

08:55-11:35

Nonstop5h 40m

San Francisco

Wed 30/9

22:30-06:35

Nonstop5h 05m

£273

Washington, D.C.San Francisco

DCA Washington, D.C. Reagan-National - SFO San Francisco

DCASFO

Washington, D.C. Reagan-National

Tue 1/9

16:50-23:20

2 stops9h 30m

San Francisco

Wed 30/9

06:35-19:10

2 stops9h 35m

£298

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Fri 25/12

06:15-10:50

1 stop7h 35m

San Francisco

Fri 1/1

11:15-21:15

1 stop7h 00m

£318

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Tue 8/9

10:15-16:00

1 stop8h 45m

San Francisco

Tue 15/9

22:30-06:35

Nonstop5h 05m

£324

Washington, D.C.San Francisco

DCA Washington, D.C. Reagan-National - SFO San Francisco

DCASFO

Washington, D.C. Reagan-National

Wed 21/10

18:57-21:55

Nonstop5h 58m

San Francisco

Wed 4/11

08:43-20:00

1 stop8h 17m

£325

Washington, D.C.San Francisco

DCA Washington, D.C. Reagan-National - SFO San Francisco

DCASFO

Washington, D.C. Reagan-National

Thu 3/9

16:55-23:10

2 stops9h 15m

San Francisco

Thu 10/9

06:00-20:55

2 stops11h 55m

£327

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Wed 14/10

07:02-19:31

2 stops15h 29m

San Francisco

Tue 20/10

10:40-17:50

1 stop28h 10m

£332

BaltimoreSan Francisco

BWI Baltimore/Washington - SFO San Francisco

BWISFO

Baltimore/Washington

Sat 19/12

14:45-23:45

2 stops12h 00m

San Francisco

Thu 7/1

10:55-19:00

Nonstop5h 05m

£335

Washington, D.C.San Francisco

IAD Washington, D.C. Dulles Intl - SFO San Francisco

IADSFO

Washington, D.C. Dulles Intl

Fri 6/11

17:38-20:35

Nonstop5h 57m

San Francisco

Tue 10/11

12:45-20:51

Nonstop5h 06m

£338

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Washington, D.C. to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Washington, D.C. with our price prediction graph.
Estimated return 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 Washington, D.C. to San Francisco

What is the cheapest month to book a flight from Washington, D.C. to San Francisco?

Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to San Francisco (average of £291). Flying from Washington, D.C. to San Francisco in June is currently the most expensive (average of £424). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from WAS to SFO?

Find hourly flight availability from Washington, D.C. to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 11 August 2026.

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

Weekly flight availability from Washington, D.C. to San Francisco

Explore weekly flight availability from Washington, D.C. to San Francisco. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 11 August 2026.

The most flights from WAS to SFO are scheduled on a Monday (42 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost for a return flight from Washington, D.C. to San Francisco?

Airfare is below average for this route at the moment.
Washington, D.C. to San Francisco flights typically cost between £295 and £441 in September.
The cheapest return price found within the last 5 days was £238 on Southwest (1 Sept–30 Sept).

How often are flights from Washington, D.C. to San Francisco delayed?

About 18% of weekly flights between Washington, D.C. and San Francisco have experienced delays in the past year, with the average delay time being 192 minutes.

What is the most punctual flight time for Washington, D.C. to San Francisco flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to San Francisco flights?

Over the past year, United Airlines have had the lowest number of delays on this route, with just 16% of flights being delayed.

How far ahead should I book a flight from Washington, D.C. to San Francisco?

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. to San Francisco. 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 into for flights to San Francisco from Washington, D.C.?

    Located just 11.0 mi from the city center, San Francisco is the airport most travelers will use when flying to San Francisco from Washington, D.C.. Booking flights from Washington, D.C. to San Francisco (SFO) should be relatively easy as there are 7 daily inbound flights from Washington, D.C. from 0 different airlines.

  • How long is the flight from Washington, D.C. to San Francisco?

    Departing from Washington, D.C. to San Francisco will take you 5h 58m. Washington, D.C. and San Francisco are separated by a distance of 2435 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Washington, D.C. to San Francisco?

    When deciding which route to take from Washington, D.C. to San Francisco consider Washington, D.C. Reagan-National - San Francisco, Baltimore/Washington - San Francisco or Washington, D.C. Dulles Intl - San Francisco as they are the most popular.

  • What are the most reliable airlines from Washington, D.C. to San Francisco?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to San Francisco consider choosing Egyptair (84%), Air China (78%) or Virgin Australia (71%) as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Washington, D.C. to San Francisco that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to San Francisco?

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

  • Can I find deals for business class flights from Washington, D.C. to San Francisco?

    Yes. Cheapflights offers flight deals from Washington, D.C. to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. to San Francisco?

    Currently, February is the cheapest month in which you can book a flight from Washington, D.C. to San Francisco (average of £291). Flying from Washington, D.C. to San Francisco in June is currently the most expensive (average of £424). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
San Bruno
Roseville
Newark
Bodega Bay
Sunnyvale
South San Francisco

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Alternative routes for Washington, D.C. to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights
Dulles Intl to San Francisco flights
Reagan-National to San Francisco flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington, D.C. to San Francisco?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to San Francisco. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to San Francisco?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Francisco from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. to San Francisco with no change fees?

Yes! Cheapflights helps users easily find flights from Washington, D.C. to San Francisco with no change fees.

Can Cheapflights notify me if prices for flights from Washington, D.C. to San Francisco become cheaper?

Yes! Start tracking prices for Washington, D.C. to San Francisco flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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