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Cheap flights from San Francisco to Washington, D.C. from £104

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 22/2. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — WAS
28 Feb — 7 Mar1
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 29 January 2026.

Thu 19/209:46
SFO
-
DCA
Nonstop5h 13m
Alaska Airlines
Sat 21/218:59
DCA
-
SFO
Nonstop6h 20m
Alaska Airlines
Deal found 28/1£172
Sat 28/221:20
SFO
-
IAD
Nonstop5h 07m
United Airlines
Sun 8/322:10
IAD
-
SFO
Nonstop6h 18m
United Airlines
Deal found 28/1£172
Tue 3/310:00
SFO
-
DCA
2 stops10h 15m
Southwest
Wed 4/308:00
DCA
-
SFO
1 stop8h 35m
Southwest
Deal found 26/1£175
Wed 25/206:05
SFO
-
IAD
1 stop6h 45m
Southwest
Wed 4/309:05
IAD
-
SFO
2 stops15h 10m
Southwest
Deal found 28/1£175
Thu 26/222:46
SFO
-
IAD
1 stop8h 57m
Frontier
Thu 5/311:22
IAD
-
SFO
2 stops16h 06m
Frontier
Deal found 27/1£184
Wed 15/421:30
SFO
-
IAD
Nonstop5h 26m
United Airlines
Mon 20/422:10
IAD
-
SFO
Nonstop6h 07m
United Airlines
Deal found 26/1£186
Wed 18/205:30
SFO
-
DCA
1 stop8h 05m
Southwest
Thu 19/206:00
DCA
-
SFO
1 stop8h 15m
Southwest
Deal found 28/1£186
Sat 7/310:20
SFO
-
IAD
1 stop9h 50m
Delta
Tue 10/315:35
IAD
-
SFO
1 stop10h 44m
Delta
Deal found 28/1£186
Mon 6/422:00
SFO
-
DCA
1 stop9h 55m
JetBlue
Tue 14/416:59
DCA
-
SFO
1 stop10h 00m
JetBlue
Deal found 27/1£189
Mon 2/306:25
SFO
-
DCA
1 stop8h 30m
Southwest
Tue 3/312:45
DCA
-
SFO
2 stops10h 30m
Southwest
Deal found 27/1£190
Tue 24/207:40
SFO
-
IAD
2 stops11h 15m
Southwest
Thu 26/215:25
IAD
-
SFO
1 stop11h 00m
Southwest
Deal found 29/1£190
Sun 12/422:00
SFO
-
DCA
1 stop12h 03m
JetBlue
Sun 19/406:00
DCA
-
SFO
1 stop8h 34m
JetBlue
Deal found 28/1£191

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 29 January 2026.

Round-trip from

£172

One-way from

£104

Popular in

December

Cheapest in

February

Average price

£307

Good round-trip deal

£471 or less
Alaska Airlines
  • Alaska Airlines
  • 19/2-24/2
  • Nonstop
  • 11h 33m total
  • San Francisco to Washington, D.C.
Search Deals
Southwest
  • Southwest
  • 22/2
  • 1 total stop
  • 10h 20m total
  • San Francisco to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price (£18 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 29 January 2026.
Use the filters below to find and compare flights from San Francisco to Washington, D.C. that are best for you.

Fly from

San Francisco

Fly to

Washington, D.C.

Route

Depart

Return

Price

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 25/2

06:05-15:50

1 stop6h 45m

Washington, D.C. Dulles Intl

Wed 4/3

09:05-21:15

2 stops15h 10m

£175

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 1/4

08:00-20:46

1 stop9h 46m

Washington, D.C. Dulles Intl

Tue 7/4

07:00-14:05

1 stop10h 05m

£186

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Fri 20/3

20:44-08:56

1 stop9h 12m

Washington, D.C. Reagan-National

Thu 26/3

15:55-00:51

1 stop11h 56m

£189

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Mon 2/3

06:25-17:55

1 stop8h 30m

Washington, D.C. Reagan-National

Tue 3/3

12:45-20:15

2 stops10h 30m

£190

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Sat 11/4

07:00-20:45

2 stops10h 45m

Washington, D.C. Reagan-National

Sat 18/4

06:40-12:35

1 stop8h 55m

£190

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Thu 12/3

05:50-16:35

1 stop7h 45m

Washington, D.C. Reagan-National

Sat 21/3

06:00-10:51

1 stop7h 51m

£194

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 23/2

22:50-11:35

1 stop9h 45m

Washington, D.C. Dulles Intl

Wed 25/2

06:00-11:04

1 stop8h 04m

£194

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 19/2

14:05-00:21

1 stop7h 16m

Washington, D.C. Dulles Intl

Sun 22/2

07:30-14:40

1 stop10h 10m

£201

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 25/2

09:50-21:55

1 stop9h 05m

Washington, D.C. Dulles Intl

Sun 1/3

19:00-00:05

1 stop8h 05m

£201

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 5/3

05:30-16:05

1 stop7h 35m

Washington, D.C. Dulles Intl

Mon 9/3

19:45-00:50

1 stop8h 05m

£201

Flights are sorted by cheapest return flights first.

Deals found on 29/1

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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.

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

Use this chart to determine the optimal time to book a return flight from San Francisco to Washington, D.C.. Price data was last updated on 23 January 2026.

Booking 64 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.

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

Currently, May is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. (average of £86). Flying from San Francisco to Washington, D.C. in December is currently the most expensive (average of £172). 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 29 January 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 29 January 2026.

The most flights from SFO to WAS are scheduled on a Wednesday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (20 on average).

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

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 29 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 11.8 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 £175, Southwest can have you in Washington, D.C. from San Francisco in 6h 45m. There are 2412 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. Reagan-National or San Francisco - Washington, D.C. Dulles Intl, 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: Brussels Airlines (92%), Egyptair (90%), United Airlines (87%).

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

    Looking at all options, your cheapest flight can be booked for £419. While the most popular route (San Francisco - Baltimore/Washington) can be booked for £227 on average, our data indicates £471 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, May is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. (average of £86). Flying from San Francisco to Washington, D.C. in December is currently the most expensive (average of £172). 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
Woodbridge
Arlington
Alexandria
College Park

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