Cheap flights from Washington, D.C. Reagan-National Airport to San Francisco from £138

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 18/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SFO
2 Aug — 9 Aug1
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 3 July 2026.

Wed 19/818:59
DCA
-
SFO
Nonstop5h 55m
Alaska Airlines
Wed 26/808:23
SFO
-
DCA
1 stop8h 37m
Alaska Airlines
Deal found 29/6£273
Wed 2/909:30
DCA
-
SFO
1 stop27h 30m
Alaska Airlines
Sat 5/909:39
SFO
-
DCA
Nonstop5h 20m
Alaska Airlines
Deal found 2/7£276
Sat 22/817:47
DCA
-
SFO
1 stop9h 43m
JetBlue
Wed 9/907:50
SFO
-
DCA
1 stop10h 10m
JetBlue
Deal found 2/7£281
Sat 17/1007:45
DCA
-
SFO
Nonstop5h 57m
United Airlines
Tue 20/1014:07
SFO
-
DCA
Nonstop5h 23m
United Airlines
Deal found 30/6£281
Sat 22/806:10
DCA
-
SFO
1 stop9h 50m
Southwest
Sat 29/808:00
SFO
-
DCA
1 stop9h 05m
Southwest
Deal found 2/7£282
Sat 22/806:00
DCA
-
SFO
1 stop7h 17m
Delta
Fri 28/800:12
SFO
-
DCA
1 stop7h 47m
Delta
Deal found 28/6£283
Thu 23/717:59
DCA
-
SFO
1 stop9h 31m
JetBlue
Sun 20/921:45
SFO
-
DCA
1 stop9h 17m
JetBlue
Deal found 30/6£286
Sat 22/807:48
DCA
-
SFO
Nonstop5h 57m
United Airlines
Sat 29/814:07
SFO
-
DCA
Nonstop5h 23m
United Airlines
Deal found 1/7£287
Wed 7/1007:45
DCA
-
SFO
Nonstop5h 57m
United Airlines
Tue 13/1014:07
SFO
-
DCA
Nonstop5h 23m
United Airlines
Deal found 30/6£289
Thu 20/807:48
DCA
-
SFO
Nonstop5h 57m
United Airlines
Wed 9/914:07
SFO
-
DCA
Nonstop5h 23m
United Airlines
Deal found 2/7£290

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 3 July 2026.

Round-trip from

£273

One-way from

£138

Popular in

June

Cheapest in

January

Average price

£363
Alaska Airlines
  • Alaska Airlines
  • 19/8-26/8
  • 1 total stop
  • 14h 32m total
  • Washington, D.C. to San Francisco
Frontier
  • Frontier
  • 18/9
  • 1 total stop
  • 7h 36m total
  • Washington, D.C. to San Francisco
Highest demand for flights based on searches. 16% potential increase in price (£51 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£9 potential savings vs. average return price).
Average for round-trip flights in July 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 3 July 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 24/9

07:45-10:42

Nonstop5h 57m

San Francisco

Tue 29/9

14:07-22:30

Nonstop5h 23m

£290
Fastest return journey

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Sat 22/8

18:59-21:54

Nonstop5h 55m

San Francisco

Sat 29/8

09:39-17:59

Nonstop5h 20m

£293

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Mon 17/8

18:59-21:56

Nonstop5h 57m

San Francisco

Wed 26/8

09:27-21:00

1 stop8h 33m

£301

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Sat 22/8

13:00-20:35

2 stops10h 35m

San Francisco

Sat 22/8

23:05-12:45

1 stop10h 40m

£313

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 4/9

17:45-20:42

Nonstop5h 57m

San Francisco

Fri 11/9

14:07-22:30

Nonstop5h 23m

£320

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Tue 1/9

06:10-10:50

1 stop7h 40m

San Francisco

Mon 7/9

06:00-20:55

2 stops11h 55m

£327

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Tue 28/7

18:59-21:56

Nonstop5h 57m

San Francisco

Sat 19/9

09:39-17:59

Nonstop5h 20m

£335

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 18/9

18:59-21:54

Nonstop5h 55m

San Francisco

Mon 21/9

07:08-21:00

1 stop10h 52m

£342

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 18/9

10:55-19:15

2 stops11h 20m

San Francisco

Sat 26/9

05:00-18:00

2 stops10h 00m

£347

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Wed 25/11

21:00-10:00

2 stops16h 00m

San Francisco

Fri 27/11

05:05-16:25

1 stop8h 20m

£350

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 22 resultsSorted by cheapest first
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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?

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 52 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 £260). Flying from Washington, D.C. Reagan-National Airport to San Francisco in June is currently the most expensive (average of £463). 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 3 July 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?

    United Airlines, Alaska Airlines, and Southwest can get you from Washington, D.C. Reagan-National Airport to San Francisco in just under 5h 55m. Your travel time can differ by up to 4h 40m. 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 (89%), United Airlines (63%) or Air New Zealand (63%) 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 £260). Flying from Washington, D.C. Reagan-National Airport to San Francisco in June is currently the most expensive (average of £463). 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
San Bruno
Newark
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South San Francisco
Sunnyvale

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Alternative routes for Reagan-National to San Francisco

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

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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.

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