Cheap flights from Washington, D.C. Reagan-National Airport to San Francisco from £140

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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — SFO
29 Jun — 6 Jul1
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 30 May 2026.

Thu 3/916:30
DCA
-
SFO
1 stop8h 25m
Southwest
Tue 8/923:40
SFO
-
DCA
1 stop8h 45m
Southwest
Deal found 28/5£247
Wed 19/816:40
DCA
-
SFO
1 stop7h 40m
Southwest
Sat 22/823:05
SFO
-
DCA
1 stop10h 40m
Southwest
Deal found 28/5£252
Tue 27/1018:57
DCA
-
SFO
Nonstop5h 58m
Alaska Airlines
Wed 4/1106:40
SFO
-
DCA
1 stop10h 20m
Alaska Airlines
Deal found 27/5£264
Tue 8/918:59
DCA
-
SFO
Nonstop5h 55m
Alaska Airlines
Wed 16/909:39
SFO
-
DCA
Nonstop5h 20m
Alaska Airlines
Deal found 29/5£265
Mon 17/818:40
DCA
-
SFO
1 stop8h 25m
Southwest
Thu 20/823:05
SFO
-
DCA
1 stop10h 15m
Southwest
Deal found 29/5£270
Sat 17/1010:59
DCA
-
SFO
1 stop8h 20m
Alaska Airlines
Tue 20/1010:19
SFO
-
DCA
1 stop30h 41m
Alaska Airlines
Deal found 26/5£271
Fri 28/816:35
DCA
-
SFO
1 stop9h 50m
Southwest
Wed 9/911:50
SFO
-
DCA
1 stop7h 20m
Southwest
Deal found 29/5£272
Tue 8/910:59
DCA
-
SFO
1 stop8h 00m
Alaska Airlines
Tue 15/909:39
SFO
-
DCA
Nonstop5h 20m
Alaska Airlines
Deal found 29/5£273
Mon 17/816:35
DCA
-
SFO
1 stop9h 50m
Southwest
Sat 22/805:00
SFO
-
DCA
1 stop12h 55m
Southwest
Deal found 29/5£273
Thu 10/909:30
DCA
-
SFO
1 stop9h 47m
Alaska Airlines
Wed 16/909:39
SFO
-
DCA
Nonstop5h 20m
Alaska Airlines
Deal found 29/5£274

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 30 May 2026.

Round-trip from

£247

One-way from

£140

Popular in

May

Cheapest in

January

Average price

£441
Southwest
  • Southwest
  • 3/9-8/9
  • 2 total stops
  • 17h 10m total
  • Washington, D.C. to San Francisco
Southwest
  • Southwest
  • 17/8
  • 1 total stop
  • 9h 50m total
  • Washington, D.C. to San Francisco
Highest demand for flights based on searches. 17% potential increase in price (£54 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Average for round-trip flights in May 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 30 May 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

Tue 1/9

18:59-21:54

Nonstop5h 55m

San Francisco

Thu 10/9

08:23-20:00

1 stop8h 37m

£274

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 28/8

16:30-23:25

2 stops9h 55m

San Francisco

Wed 9/9

11:50-22:10

1 stop7h 20m

£276

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Tue 14/7

18:59-21:56

Nonstop5h 57m

San Francisco

Wed 19/8

09:27-21:00

1 stop8h 33m

£299
Fastest return journey

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 3/7

17:59-20:55

Nonstop5h 56m

San Francisco

Fri 10/7

14:18-22:30

Nonstop5h 12m

£317

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Sat 31/10

14:50-21:20

2 stops9h 30m

San Francisco

Wed 4/11

11:25-22:00

1 stop7h 35m

£325

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 7/8

18:59-21:56

Nonstop5h 57m

San Francisco

Sat 15/8

07:55-21:00

1 stop10h 05m

£325

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Wed 19/8

09:35-17:00

2 stops10h 25m

San Francisco

Sat 22/8

05:00-18:00

2 stops10h 00m

£328

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 22/10

13:20-21:35

1 stop11h 15m

San Francisco

Sun 25/10

23:40-11:55

1 stop9h 15m

£336

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Mon 9/11

13:45-20:36

1 stop9h 51m

San Francisco

Fri 13/11

13:31-23:34

1 stop7h 03m

£341

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

Wed 8/7

12:20-22:55

1 stop7h 35m

£351

Flights are sorted by cheapest return flights first.

Deals found on 28/5

Showing 1-10 of 24 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 £256). Flying from Washington, D.C. Reagan-National Airport to San Francisco in May is currently the most expensive (average of £441). 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 30 May 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 6 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, Southwest, and United Airlines 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. 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 (95%), United Airlines (82%) or Air New Zealand (82%) 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 £256). Flying from Washington, D.C. Reagan-National Airport to San Francisco in May is currently the most expensive (average of £441). 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

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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?

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.

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