Cheap flights from Washington, D.C. Reagan-National Airport to San Francisco from £126

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SFO
22 May — 29 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to San Francisco
Explore the most affordable flight options available from Reagan-National to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 April 2026.

Thu 17/910:55
DCA
-
SFO
2 stops11h 35m
Southwest
Mon 21/905:35
SFO
-
DCA
1 stop11h 15m
Southwest
Deal found 20/4£260
Wed 23/906:10
DCA
-
SFO
1 stop7h 40m
Southwest
Sun 27/923:40
SFO
-
DCA
1 stop9h 10m
Southwest
Deal found 20/4£266
Tue 19/506:10
DCA
-
SFO
1 stop7h 55m
Southwest
Tue 26/522:40
SFO
-
DCA
1 stop10h 40m
Southwest
Deal found 20/4£270
Fri 15/506:10
DCA
-
SFO
2 stops9h 25m
Southwest
Tue 19/505:25
SFO
-
DCA
2 stops10h 15m
Southwest
Deal found 21/4£271
Fri 14/818:40
DCA
-
SFO
1 stop8h 25m
Southwest
Mon 17/823:05
SFO
-
DCA
1 stop10h 00m
Southwest
Deal found 20/4£273
Sat 16/510:40
DCA
-
SFO
2 stops10h 55m
Southwest
Tue 19/505:25
SFO
-
DCA
2 stops10h 15m
Southwest
Deal found 21/4£274
Fri 5/616:10
DCA
-
SFO
2 stops10h 15m
Southwest
Mon 8/619:45
SFO
-
DCA
2 stops9h 40m
Southwest
Deal found 20/4£281
Wed 12/817:00
DCA
-
SFO
1 stop10h 31m
JetBlue
Tue 18/822:17
SFO
-
DCA
1 stop10h 43m
JetBlue
Deal found 17/4£283

Find flight deals from Reagan-National to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) 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 22 April 2026.

Round-trip from

£260

One-way from

£126

Popular in

March

Cheapest in

January

Average price

£396
Southwest
  • Southwest
  • 17/9-21/9
  • 3 total stops
  • 22h 50m total
  • Washington, D.C. to San Francisco
Southwest
  • Southwest
  • 10/9
  • 1 total stop
  • 8h 25m total
  • Washington, D.C. to San Francisco
Highest demand for flights based on searches. 5% potential increase in price (£15 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customise your flight search to find flights from Reagan-National 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 22 April 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 27/8

10:59-19:06

1 stop11h 07m

San Francisco

Tue 1/9

09:27-21:00

1 stop8h 33m

£323
Fastest return journey

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Tue 25/8

18:59-21:54

Nonstop5h 55m

San Francisco

Sat 29/8

09:36-17:59

Nonstop5h 23m

£323

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 4/6

17:20-00:30

2 stops10h 10m

San Francisco

Thu 11/6

10:50-22:55

1 stop9h 05m

£327

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Wed 1/7

16:55-23:25

2 stops9h 30m

San Francisco

Mon 6/7

23:40-11:15

1 stop8h 35m

£327

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 28/5

06:10-12:35

2 stops9h 25m

San Francisco

Mon 1/6

05:05-16:35

2 stops8h 30m

£328

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 21/5

06:10-12:35

2 stops9h 25m

San Francisco

Thu 28/5

05:05-16:35

2 stops8h 30m

£328

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Mon 1/6

06:10-12:35

2 stops9h 25m

San Francisco

Sun 7/6

18:50-08:25

2 stops10h 35m

£328

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 28/5

06:10-12:35

2 stops9h 25m

San Francisco

Sat 30/5

07:00-20:45

2 stops10h 45m

£328

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Sat 30/5

18:59-22:03

Nonstop6h 04m

San Francisco

Wed 3/6

07:20-21:00

1 stop10h 40m

£331

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 24/9

10:55-19:30

2 stops11h 35m

San Francisco

Sun 27/9

19:50-08:30

2 stops9h 40m

£331

Flights are sorted by cheapest return flights first.

Deals found on 21/4

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Reagan-National to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Reagan-National 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. Reagan-National Airport to San Francisco

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

Use this chart to determine the optimal time to book a return flight from Reagan-National to San Francisco. Price data was last updated on 17 April 2026.

The price you pay for your flight from Washington, D.C. Reagan-National Airport to San Francisco may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Francisco (average of £257). Flying from Washington, D.C. Reagan-National Airport to San Francisco in March is currently the most expensive (average of £397). 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 DCA to SFO?

Find hourly flight availability from Reagan-National 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 22 April 2026.

When flying from Washington, D.C. Reagan-National Airport 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.

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

Related info for your journey

Find useful and relevant information for your journey from Reagan-National 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. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to San Francisco, you will be flying into San Francisco. San Francisco (SFO) is just 11.0 mi from the center of the city. San Francisco is the only San Francisco airport and it handles 7 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to San Francisco from Washington, D.C. Reagan-National on a regular basis.

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

    Alaska Airlines and Southwest can get you from Washington, D.C. Reagan-National Airport to San Francisco in just under 10h 10m. Your travel time can differ by up to 57m. The distance from Washington, D.C. Reagan-National Airport to San Francisco is about 2435 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    Consider Virgin Australia (80%), United Airlines (77%) or Air New Zealand (77%) when booking your flight. These represent the most reliable airlines when flying from Washington, D.C. Reagan-National Airport to San Francisco.

  • Can I find deals for flights from Reagan-National to San Francisco that include hotel bookings?

    Yes. In addition to deals on Reagan-National to San Francisco flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to San Francisco?

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

  • Can I find deals for business class flights from Reagan-National to San Francisco?

    Yes. Cheapflights offers flight deals from Reagan-National 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. Reagan-National Airport to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to San Francisco (average of £257). Flying from Washington, D.C. Reagan-National Airport to San Francisco in March is currently the most expensive (average of £397). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Reagan-National to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.

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 Reagan-National to San Francisco?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to San Francisco from Reagan-National today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Reagan-National to San Francisco?

Millions of users choose and trust Cheapflights to book the best flight deals from Reagan-National to San Francisco for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Reagan-National to San Francisco with no change fees?

Yes! Cheapflights helps users easily find flights from Reagan-National to San Francisco with no change fees.

Can Cheapflights notify me if prices for flights from Reagan-National to San Francisco become cheaper?

Yes! Start tracking prices for Reagan-National 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.