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Cheap flights from Washington, D.C. to San Francisco from £124

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 26/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — SFO
20 Jun — 27 Jun1
1 adult
1 adult, Economy, 0 bags

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 21 May 2026.

Tue 4/809:10
BWI
-
SFO
1 stop7h 40m
Southwest
Sat 8/814:15
SFO
-
BWI
1 stop13h 15m
Southwest
Deal found 19/5£252
Wed 9/910:55
BWI
-
SFO
2 stops8h 30m
Southwest
Sat 12/905:00
SFO
-
BWI
2 stops8h 45m
Southwest
Deal found 20/5£253
Sat 11/718:59
BWI
-
SFO
Nonstop5h 51m
United Airlines
Tue 14/700:45
SFO
-
BWI
1 stop8h 02m
United Airlines
Deal found 20/5£255
Wed 19/810:50
BWI
-
SFO
2 stops9h 30m
Southwest
Tue 25/823:40
SFO
-
BWI
2 stops10h 25m
Southwest
Deal found 17/5£256
Tue 4/809:10
BWI
-
SFO
1 stop7h 40m
Southwest
Wed 12/823:05
SFO
-
BWI
2 stops12h 30m
Southwest
Deal found 16/5£256
Sat 29/808:00
BWI
-
SFO
Nonstop5h 58m
United Airlines
Wed 2/900:45
SFO
-
BWI
1 stop8h 00m
United Airlines
Deal found 19/5£257
Wed 8/718:30
BWI
-
SFO
1 stop8h 40m
Southwest
Wed 15/721:10
SFO
-
BWI
Nonstop5h 15m
Southwest
Deal found 18/5£258
Mon 29/606:15
BWI
-
SFO
1 stop7h 05m
Southwest
Wed 8/721:10
SFO
-
BWI
Nonstop5h 15m
Southwest
Deal found 19/5£260
Wed 26/810:55
BWI
-
SFO
2 stops8h 30m
Southwest
Sun 30/822:30
SFO
-
BWI
Nonstop5h 05m
Southwest
Deal found 17/5£261
Tue 7/710:45
BWI
-
SFO
2 stops8h 55m
Southwest
Sat 11/721:30
SFO
-
BWI
Nonstop5h 10m
Southwest
Deal found 18/5£262
Tue 9/607:30
IAD
-
SFO
1 stop15h 25m
Frontier
Tue 9/600:32
SFO
-
IAD
1 stop11h 26m
Frontier
Deal found 19/5£262
Tue 9/608:31
BWI
-
SFO
1 stop14h 24m
Frontier
Tue 9/600:32
SFO
-
BWI
1 stop12h 20m
Frontier
Deal found 19/5£262

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 21 May 2026.

Round-trip from

£252

One-way from

£124

Popular in

March

Cheapest in

February

Average price

£355
Southwest
  • Southwest
  • 4/8-8/8
  • 2 total stops
  • 20h 55m total
  • Washington, D.C. to San Francisco
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 26/8
  • 1 total stop
  • 9h 54m total
  • Washington, D.C. to San Francisco
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£9 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 May 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 21 May 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 - SFO

BWISFO

Baltimore/Washington

Thu 30/7

17:00-22:49

1 stop8h 49m

San Francisco

Tue 4/8

22:59-08:54

1 stop6h 55m

£268

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 28/7

06:20-13:09

1 stop9h 49m

San Francisco

Sun 2/8

19:24-05:57

1 stop7h 33m

£268

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Wed 21/10

17:33-23:44

1 stop9h 11m

San Francisco

Sat 24/10

17:42-05:40

1 stop8h 58m

£281

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Tue 9/6

06:20-11:05

1 stop7h 45m

San Francisco

Wed 10/6

05:00-17:55

2 stops9h 55m

£286

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Fri 18/9

07:50-14:49

1 stop9h 59m

San Francisco

Mon 21/9

18:58-15:40

1 stop17h 42m

£287

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 25/7

17:05-23:30

1 stop9h 25m

San Francisco

Thu 30/7

05:10-17:45

2 stops9h 35m

£289

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 24/9

17:20-23:25

1 stop9h 05m

San Francisco

Mon 28/9

23:40-13:05

2 stops10h 25m

£291

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sun 16/8

19:00-23:25

1 stop7h 25m

San Francisco

Sun 23/8

06:10-18:10

2 stops9h 00m

£291

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Wed 22/7

15:35-22:15

2 stops9h 40m

San Francisco

Thu 30/7

05:10-17:45

2 stops9h 35m

£292

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 17/10

18:52-21:43

Nonstop5h 51m

San Francisco

Tue 20/10

18:45-06:48

1 stop9h 03m

£299

Flights are sorted by cheapest return flights first.

Deals found on 19/5

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 £297). Flying from Washington, D.C. to San Francisco in December is currently the most expensive (average of £389). 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 21 May 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 21 May 2026.

The most flights from WAS to SFO are scheduled on a Wednesday (43 on average). You will have fewer flight options on Saturday, 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?

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

About 16% of weekly flights between Washington, D.C. and San Francisco have experienced delays in the past year, with the average delay time being 195 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?

Saturday 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 15% of flights being delayed.

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

Booking 23 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 17 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 7h 45m. Washington, D.C. and San Francisco are separated by a distance of 2449 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, Washington, D.C. Dulles Intl - San Francisco or Baltimore/Washington - 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 Austrian Airlines (90%), Egyptair (87%) or Air New Zealand (86%) 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 £297). Flying from Washington, D.C. to San Francisco in December is currently the most expensive (average of £389). 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
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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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.
Reagan-National to San Francisco flights
Dulles Intl to San Francisco flights
Dulles Intl to Los Angeles flights
Reagan-National to Los Angeles flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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