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Cheap flights from San Francisco to Washington, D.C. from £100

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 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — WAS
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheapflights Tip: The best prices from San Francisco to Washington, D.C. are usually found in September or February, booked 28 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap 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 September 2025.

Round-trip from

£193

One-way from

£100

Popular in

December

Cheapest in

September

Average price

£287

Good round-trip deal

£479 or less
Southwest
  • Southwest
  • 7/12-10/12
  • 3 total stops
  • 21h 45m total
  • San Francisco to Washington, D.C.
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Southwest
  • Southwest
  • 20/1
  • Nonstop
  • 5h 00m total
  • San Francisco to Washington, D.C.
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Highest demand for flights based on searches. 7% potential increase in price (£20 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£5 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from San Francisco to Washington, D.C. (WAS).
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Find flight deals from San Francisco to Washington, D.C.

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 September 2025.

Sun 7/1206:10SFO - DCA
1 stop11h 45mSouthwest
Wed 10/1211:35DCA - SFO
2 stops10h 00mSouthwest
Deal found 11/9£193
Sat 18/1021:30SFO - BWI
Nonstop5h 20mUnited Airlines
Wed 22/1006:45BWI - SFO
Nonstop5h 50mUnited Airlines
Deal found 11/9£194
Sat 4/1021:30SFO - BWI
Nonstop5h 20mUnited Airlines
Sat 11/1008:50BWI - SFO
Nonstop5h 50mUnited Airlines
Deal found 11/9£195
Mon 10/1106:10SFO - DCA
2 stops9h 00mSouthwest
Sat 15/1106:05DCA - SFO
2 stops10h 35mSouthwest
Deal found 12/9£196
Tue 16/1209:51SFO - DCA
Nonstop5h 08mAlaska Airlines
Wed 7/108:59DCA - SFO
1 stop8h 06mAlaska Airlines
Deal found 11/9£197
Tue 28/1008:00SFO - IAD
2 stops12h 05mSouthwest
Fri 31/1016:50IAD - SFO
1 stop7h 35mSouthwest
Deal found 12/9£198
Wed 5/1112:15SFO - IAD
1 stop6h 55mSouthwest
Sun 9/1105:05IAD - SFO
1 stop7h 25mSouthwest
Deal found 10/9£199
Tue 21/1021:05SFO - BWI
Nonstop5h 10mSouthwest
Wed 29/1010:35BWI - SFO
Nonstop5h 55mSouthwest
Deal found 10/9£199
Tue 18/1105:50SFO - DCA
2 stops9h 55mSouthwest
Sat 22/1116:50DCA - SFO
1 stop10h 25mSouthwest
Deal found 10/9£199
Fri 24/1005:00SFO - IAD
1 stop11h 00mSouthwest
Tue 28/1016:50IAD - SFO
1 stop8h 55mSouthwest
Deal found 11/9£200
Sun 9/1100:43SFO - DCA
1 stop7h 46mUnited Airlines
Sat 15/1110:30DCA - SFO
1 stop8h 05mUnited Airlines
Deal found 11/9£201
Sat 4/1021:30SFO - BWI
Nonstop5h 20mUnited Airlines
Fri 10/1018:55BWI - SFO
Nonstop5h 50mUnited Airlines
Deal found 10/9£202

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 September 2025.
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 - DCA

SFODCA

San Francisco

Thu 13/11

00:43-11:29

1 stop7h 46m

Washington, D.C. Reagan-National

Sat 15/11

10:30-15:35

1 stop8h 05m

£201

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 28/10

07:00-17:13

1 stop7h 13m

Washington, D.C. Dulles Intl

Thu 6/11

17:40-23:46

1 stop9h 06m

£204

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Thu 13/11

09:45-17:58

Nonstop5h 13m

Washington, D.C. Reagan-National

Sun 16/11

18:58-22:11

Nonstop6h 13m

£205

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Fri 17/10

00:35-11:13

1 stop7h 38m

Washington, D.C. Reagan-National

Wed 22/10

06:19-10:33

1 stop7h 14m

£205

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Fri 14/11

09:45-17:58

Nonstop5h 13m

Washington, D.C. Reagan-National

Mon 17/11

18:58-22:11

Nonstop6h 13m

£205

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 20/10

00:35-11:26

1 stop7h 51m

Washington, D.C. Dulles Intl

Sat 25/10

07:35-16:05

1 stop11h 30m

£205

San FranciscoWashington, D.C.

SFO - DCA

SFODCA

San Francisco

Tue 21/10

09:40-17:59

Nonstop5h 19m

Washington, D.C. Reagan-National

Sat 25/10

18:59-21:55

Nonstop5h 56m

£205

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Fri 3/10

00:45-13:30

1 stop9h 45m

Washington, D.C. Dulles Intl

Tue 7/10

07:35-16:05

1 stop11h 30m

£205

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Sat 4/10

07:00-17:41

1 stop7h 41m

Baltimore/Washington

Sat 11/10

06:00-10:33

1 stop7h 33m

£205

San FranciscoBaltimore

SFO - BWI

SFOBWI

San Francisco

Tue 11/11

00:45-10:48

1 stop7h 03m

Baltimore/Washington

Sat 15/11

18:27-23:58

1 stop8h 31m

£205

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 60 results
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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 29 August 2025.

Booking 28 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, January is the cheapest month in which you can book a flight from San Francisco to Washington, D.C. (average of £599). Flying from San Francisco to Washington, D.C. in July is currently the most expensive (average of £947). 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 September 2025.

When flying from San Francisco to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 54% versus a flight in the afternoon.

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 September 2025.

The most flights from SFO to WAS are scheduled on a Thursday (40 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (30 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 33 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 £194, United Airlines can have you in Washington, D.C. from San Francisco in 5h 20m. 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 cheapest airlines to fly from San Francisco to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as £100 on Southwest. Other airlines that offer cheap prices include Delta from £103 and Alaska Airlines from £114 one-way.

  • 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: Asiana Airlines (86%), United Airlines (86%), Egyptair (83%).

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

    Looking at all options, your cheapest flight can be booked for £426. While the most popular route (San Francisco - Baltimore/Washington) can be booked for £389 on average, our data indicates £479 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 £599). Flying from San Francisco to Washington, D.C. in July is currently the most expensive (average of £947). 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
College Park
Tysons

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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