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Cheap flights from San Francisco to Washington, D.C. from £129

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — WAS
12 Jul — 19 Jul1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to Washington, D.C.
Explore the most affordable flight options available from San Francisco to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 June 2026.

Thu 26/1107:30
SFO
-
BWI
1 stop8h 16m
Delta
Tue 1/1218:59
BWI
-
SFO
1 stop8h 00m
Delta
Deal found 8/6£258
Thu 3/912:30
SFO
-
BWI
1 stop7h 55m
Southwest
Tue 8/918:05
BWI
-
SFO
1 stop8h 00m
Southwest
Deal found 10/6£259
Thu 20/822:30
SFO
-
BWI
Nonstop5h 05m
Southwest
Tue 25/808:55
BWI
-
SFO
Nonstop5h 40m
Southwest
Deal found 9/6£259
Fri 14/819:45
SFO
-
BWI
1 stop7h 50m
Southwest
Thu 3/910:20
BWI
-
SFO
Nonstop5h 40m
Southwest
Deal found 10/6£261
Fri 14/819:45
SFO
-
BWI
1 stop7h 50m
Southwest
Sat 22/808:10
BWI
-
SFO
Nonstop5h 45m
Southwest
Deal found 8/6£262
Sat 5/906:40
SFO
-
BWI
2 stops10h 45m
Southwest
Tue 8/918:05
BWI
-
SFO
1 stop8h 00m
Southwest
Deal found 10/6£262
Wed 23/909:10
SFO
-
BWI
Nonstop5h 30m
United Airlines
Thu 24/918:50
BWI
-
SFO
Nonstop5h 51m
United Airlines
Deal found 10/6£263
Thu 6/823:05
SFO
-
BWI
1 stop8h 10m
Southwest
Wed 12/810:55
BWI
-
SFO
2 stops8h 30m
Southwest
Deal found 11/6£264
Thu 8/1023:08
SFO
-
BWI
Nonstop5h 23m
United Airlines
Sat 17/1008:00
BWI
-
SFO
Nonstop5h 58m
United Airlines
Deal found 9/6£265
Wed 2/909:39
SFO
-
DCA
Nonstop5h 20m
Alaska Airlines
Sat 5/918:59
DCA
-
SFO
Nonstop5h 55m
Alaska Airlines
Deal found 7/6£267
Wed 2/1214:00
SFO
-
BWI
2 stops13h 21m
Alaska Airlines
Sat 5/1207:51
BWI
-
SFO
1 stop8h 57m
Alaska Airlines
Deal found 9/6£267
Wed 23/900:45
SFO
-
BWI
1 stop8h 11m
United Airlines
Tue 29/908:00
BWI
-
SFO
Nonstop5h 58m
United Airlines
Deal found 10/6£268

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

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Washington, D.C. (WAS). 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 12 June 2026.

Round-trip from

£258

One-way from

£129

Popular in

June

Cheapest in

January

Average price

£416

Good round-trip deal

£485 or less
Delta
  • Delta
  • 25/11-2/12
  • 2 total stops
  • 16h 09m total
  • San Francisco to Washington, D.C.
Search Deals
Southwest
  • Southwest
  • 28/8
  • 2 total stops
  • 9h 15m total
  • San Francisco to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£35 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from San Francisco to Washington, D.C. (WAS).
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to Washington, D.C. 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 12 June 2026.
Use the filters below to find and compare flights from San Francisco to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Fri 2/10

21:40-05:45

Nonstop5h 05m

Baltimore/Washington

Mon 5/10

07:15-13:40

2 stops9h 25m

£262

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Thu 15/10

23:08-07:31

Nonstop5h 23m

Baltimore/Washington

Sat 17/10

08:00-10:58

Nonstop5h 58m

£265

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Wed 14/10

07:20-20:00

1 stop9h 40m

Washington, D.C. Reagan-National

Wed 21/10

08:00-16:01

1 stop11h 01m

£274

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Sat 10/10

08:20-21:00

1 stop9h 40m

Washington, D.C. Reagan-National

Tue 20/10

18:57-21:55

Nonstop5h 58m

£274

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Sat 10/10

06:00-16:31

1 stop7h 31m

Washington, D.C. Reagan-National

Sat 17/10

08:00-13:42

1 stop8h 42m

£282

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 10/10

17:42-05:40

1 stop8h 58m

Washington, D.C. Dulles Intl

Tue 20/10

17:33-23:44

1 stop9h 11m

£282

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Fri 28/8

22:30-06:35

Nonstop5h 05m

Baltimore/Washington

Wed 2/9

09:10-13:50

1 stop7h 40m

£286

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Tue 22/9

09:39-17:59

Nonstop5h 20m

Washington, D.C. Reagan-National

Tue 29/9

18:59-21:54

Nonstop5h 55m

£293

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Thu 13/8

19:45-08:30

2 stops9h 45m

Washington, D.C. Reagan-National

Wed 19/8

16:50-22:20

2 stops8h 30m

£297

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 16/9

10:36-23:59

1 stop10h 23m

Washington, D.C. Dulles Intl

Sun 20/9

19:47-08:46

1 stop15h 59m

£308

Flights are sorted by cheapest return flights first.

Deals found on 10/6

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

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from San Francisco 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 San Francisco to Washington, D.C.

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

Currently, January is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. (average of £106). Flying from San Francisco to Washington, D.C. in August is currently the most expensive (average of £586). 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 SFO to WAS?

Find hourly flight availability from San Francisco to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 June 2026.

When flying from San Francisco to Washington, D.C., 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 San Francisco to Washington, D.C.

Explore weekly flight availability from San Francisco to Washington, D.C.. 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 12 June 2026.

The most flights from SFO to WAS are scheduled on a Wednesday (41 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).

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

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

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco to Washington, D.C.. 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 San Francisco to Washington, D.C.. 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 Washington, D.C.?

    San Francisco (SFO) is the airport you will fly out of if you book a flight from San Francisco to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from San Francisco; the airport handles an average of 32 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the San Francisco airport to Washington, D.C.. It is only a 11.0 mi journey to San Francisco (SFO) from San Francisco’s city center.

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

    For as low as £262, Southwest can have you in Washington, D.C. from San Francisco in 5h 05m. There are 2449 mi between San Francisco and Washington, D.C.. 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 San Francisco to Washington, D.C.?

    While some choose either San Francisco - Washington, D.C. Dulles Intl or San Francisco - Washington, D.C. Reagan-National, San Francisco - Baltimore/Washington is the most popular route from San Francisco to Washington, D.C..

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from San Francisco to Washington, D.C. on time: ITA Airways (100%), Austrian Airlines (95%), Brussels Airlines (95%).

  • What are the cheapest flights from San Francisco to Washington, D.C.?

    Looking at all options, your cheapest flight can be booked for £432. While the most popular route (San Francisco - Baltimore/Washington) can be booked for £585 on average, our data indicates £485 when flying from San Francisco to Washington, D.C..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Washington, D.C. 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 San Francisco to Washington, D.C.?

    Currently, January is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. (average of £106). Flying from San Francisco to Washington, D.C. in August is currently the most expensive (average of £586). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from San Francisco to Washington, D.C.. 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 San Francisco to Washington, D.C.?

Cheapflights helps you find that perfect flight to Washington, D.C. from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Washington, D.C. from San Francisco today and book when prices fit your budget.

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