Cheap flights from Washington, D.C. to San Francisco from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to San Francisco departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
5:35 am - 1:13 pm
IAD
-
SFO
10h 38m1 stop
Frontier Logo
11:20 pm - 4:46 pm
SFO
-
IAD
14h 26m1 stop
$274Frontier
Thu, Dec 18 - Thu, Jan 8
Frontier Logo
8:00 am - 12:24 am
DCA
-
SFO
19h 24m1 stop
Frontier Logo
8:58 am - 9:59 pm
SFO
-
DCA
10h 01m1 stop
$274Frontier
Fri, Dec 19 - Thu, Jan 8
Alaska Airlines Logo
6:56 pm - 10:13 pm
DCA
-
SFO
6h 17mnonstop
Alaska Airlines Logo
9:40 am - 5:56 pm
SFO
-
DCA
5h 16mnonstop
$277Alaska Airlines
Thu, Jan 15 - Sat, Jan 17
Delta Logo
12:38 pm - 6:36 pm
IAD
-
SFO
8h 58m1 stop
Delta Logo
10:20 am - 11:10 pm
SFO
-
IAD
9h 50m1 stop
$277Delta
Sat, Feb 14 - Wed, Feb 18
American Airlines Logo
5:26 pm - 11:12 pm
IAD
-
SFO
8h 46m1 stop
American Airlines Logo
12:29 am - 1:35 pm
SFO
-
IAD
10h 06m1 stop
$279American Airlines
Mon, Feb 9 - Fri, Feb 27
Delta Logo
7:30 am - 1:48 pm
IAD
-
SFO
9h 18m1 stop
Delta Logo
6:00 am - 4:40 pm
SFO
-
IAD
7h 40m1 stop
$281Delta
Thu, Mar 5 - Thu, Mar 12
Alaska Airlines Logo
5:26 pm - 10:47 pm
IAD
-
SFO
8h 21m1 stop
Alaska Airlines Logo
1:10 pm - 4:26 pm
SFO
-
IAD
24h 16m2 stops
$282Alaska Airlines
Sat, Feb 7 - Mon, Feb 9
United Airlines Logo
3:52 pm - 11:59 pm
BWI
-
SFO
11h 07m1 stop
United Airlines Logo
5:00 am - 4:06 pm
SFO
-
BWI
8h 06m1 stop
$290United Airlines
Sun, Jan 11 - Wed, Jan 14
American Airlines Logo
2:46 pm - 8:25 pm
BWI
-
SFO
8h 39m1 stop
American Airlines Logo
1:30 pm - 12:07 am
SFO
-
BWI
7h 37m1 stop
$292American Airlines
Sat, Feb 7 - Sat, Feb 14
United Airlines Logo
6:34 pm - 9:45 pm
BWI
-
SFO
6h 11mnonstop
United Airlines Logo
9:09 am - 5:26 pm
SFO
-
BWI
5h 17mnonstop
$299United Airlines
Thu, Jan 22 - Tue, Jan 27

Frontier flights from Washington, D.C. to San Francisco

Our best Frontier deals on Washington, D.C. to San Francisco flight tickets
Frontier
Dec 18
IAD5:35 amWashington, D.C. Dulles Intl
10h 38m
1 stop
SFO1:13 pmSan Francisco
Jan 8
SFO11:20 pmSan Francisco
14h 26m
1 stop
IAD4:46 pmWashington, D.C. Dulles Intl
Frontier
Dec 11
DCA2:00 pmWashington, D.C. Reagan-National
20h 53m
1 stop
SFO7:53 amSan Francisco
Dec 15
SFO6:30 amSan Francisco
27h 36m
1 stop
DCA1:06 pmWashington, D.C. Reagan-National
Frontier
Dec 18
DCA2:00 pmWashington, D.C. Reagan-National
13h 24m
1 stop
SFO12:24 amSan Francisco
Jan 9
SFO8:58 amSan Francisco
25h 03m
1 stop
DCA1:01 pmWashington, D.C. Reagan-National

Southwest flights from Washington, D.C. to San Francisco

Our best Southwest deals on Washington, D.C. to San Francisco flight tickets
Southwest
Jan 7
IAD4:30 pmWashington, D.C. Dulles Intl
8h 20m
1 stop
SFO9:50 pmSan Francisco
Jan 12
SFO7:40 amSan Francisco
11h 15m
2 stops
IAD9:55 pmWashington, D.C. Dulles Intl
Southwest
Jan 14
IAD9:05 amWashington, D.C. Dulles Intl
15h 15m
2 stops
SFO9:20 pmSan Francisco
Jan 18
SFO5:05 amSan Francisco
8h 45m
1 stop
IAD4:50 pmWashington, D.C. Dulles Intl
Southwest
Feb 25
IAD9:05 amWashington, D.C. Dulles Intl
15h 15m
2 stops
SFO9:20 pmSan Francisco
Feb 27
SFO10:55 amSan Francisco
9h 15m
2 stops
IAD11:10 pmWashington, D.C. Dulles Intl

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. 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, momondo users made 832,500 searches. Data last updated December 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 12/18

5:35 am-1:13 pm

1 stop10h 38m

San Francisco

Thu 1/8

11:20 pm-4:46 pm

1 stop14h 26m

$274

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Fri 12/19

8:00 am-12:24 am

1 stop19h 24m

San Francisco

Thu 1/8

8:58 am-9:59 pm

1 stop10h 01m

$274

Washington, D.C.San Francisco

DCA - SFO

DCASFO

Washington, D.C. Reagan-National

Thu 1/15

6:56 pm-10:13 pm

Nonstop6h 17m

San Francisco

Sat 1/17

9:40 am-5:56 pm

Nonstop5h 16m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 2/14

12:38 pm-6:36 pm

1 stop8h 58m

San Francisco

Wed 2/18

10:20 am-11:10 pm

1 stop9h 50m

$277

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Mon 2/9

5:26 pm-11:12 pm

1 stop8h 46m

San Francisco

Fri 2/27

12:29 am-1:35 pm

1 stop10h 06m

$279

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Thu 3/5

7:30 am-1:48 pm

1 stop9h 18m

San Francisco

Thu 3/12

6:00 am-4:40 pm

1 stop7h 40m

$281

Washington, D.C.San Francisco

IAD - SFO

IADSFO

Washington, D.C. Dulles Intl

Sat 2/7

5:26 pm-10:47 pm

1 stop8h 21m

San Francisco

Mon 2/9

1:10 pm-4:26 pm

2 stops24h 16m

$282

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sun 1/11

3:52 pm-11:59 pm

1 stop11h 07m

San Francisco

Wed 1/14

5:00 am-4:06 pm

1 stop8h 06m

$290

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Sat 2/7

2:46 pm-8:25 pm

1 stop8h 39m

San Francisco

Sat 2/14

1:30 pm-12:07 am

1 stop7h 37m

$292

BaltimoreSan Francisco

BWI - SFO

BWISFO

Baltimore/Washington

Thu 1/22

6:34 pm-9:45 pm

Nonstop6h 11m

San Francisco

Tue 1/27

9:09 am-5:26 pm

Nonstop5h 17m

$299

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to San Francisco from

How to get the cheapest flight ticket from Washington, D.C. to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and San Francisco?

What is the cheapest month to fly to San Francisco?

If you aren’t able to travel to San Francisco during the month of February, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $396.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart from Washington, D.C. to San Francisco is on a Thursday when prices can be found for as low as $497. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $703.

What is the cheapest time of day to depart on your flight to San Francisco?

Our data shows that the cheapest Washington, D.C. to San Francisco flights are usually those with departure times in the morning. Our users have found flights to San Francisco in the morning for as low as $533. Flights in the evening are often more expensive with an average ticket price of $635.

What is the cheapest Washington, D.C. to San Francisco flight route?

Fly from Baltimore/Washington to San Francisco for the best Washington, D.C. - San Francisco flight prices

How far in advance should I book a flight to San Francisco?

You are more likely to see cheaper flights to San Francisco from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around $423 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from Washington, D.C. for as low as $377 on momondo.

What cabin class options are available on Washington, D.C. to San Francisco flights?

There are 4 cabin classes available to choose from on Washington, D.C. to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to San Francisco flights?

You could potentially save up to 27% on your flight if you consider stops on a Washington, D.C. to San Francisco flight.

How have Washington, D.C. to San Francisco flight prices changed over time?

As of December 2025, prices for Washington, D.C. to San Francisco flights are approximately 33% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to San Francisco

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to San Francisco according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to San Francisco (WAS to SFO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to San Francisco

Best Price Found

$208

Fastest flight time

5h 45m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Washington, D.C. in the past 72 hours is $208. The best round-trip flight deal from Washington, D.C. to San Francisco found on momondo in the last 72 hours is $377.
The fastest flight from Washington, D.C. to San Francisco takes 5h 45m
Direct flights go from Washington, D.C. to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
  • How far is Washington, D.C. to San Francisco by plane?

    San Francisco is 2432.6 mi away from Washington, D.C.. A reasonable flight in good conditions will take 5h 58m.

  • When did momondo last update prices for flights from Washington, D.C. to San Francisco Airport?

    Prices for flights from Washington, D.C. to San Francisco Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to San Francisco Airport?

  • How old do you have to be to fly from Washington, D.C. to San Francisco Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to San Francisco?

  • What is the most popular airline from Washington, D.C. to San Francisco?

Best airlines flying from Washington, D.C. to San Francisco

Compare and see reviews for airlines that fly from Washington, D.C. to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $120Free CancellationRating
5.8
3,092 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $134Free CancellationRating
6.3
8,160 reviews
Search Spirit Airlines flights
JetBluePriceFrom $146Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
DeltaPriceFrom $158Free CancellationRating
7.9
8,010 reviews
Search Delta flights
Sun Country AirPriceFrom $162Free CancellationRating
6.9
332 reviews
Search Sun Country Air flights
Hawaiian AirlinesPriceFrom $218Free CancellationRating
7.8
2,815 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $272Free CancellationRating
8.0
11,400 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $272Free CancellationRating
8.0
4,254 reviews
Search Southwest flights
American AirlinesPriceFrom $272Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
United AirlinesPriceFrom $276Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights
  • Alaska Airlines Flights From Washington, D.C. to San Francisco

    Across 3 Alaska Airlines flights from Washington, D.C. to San Francisco this week, the average price was $415, with the best Alaska Airlines deals starting from $272 round-trip. 11,400 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.

  • Hawaiian Airlines Flights From Washington, D.C. to San Francisco

    Another popular option for Washington, D.C. to San Francisco flights is Hawaiian Airlines (7.8/10, 2,815 ratings). Hawaiian Airlines flies from Washington, D.C. to San Francisco around 3 times per week, with deals starting from $218 round-trip and rising to an average price of around $397.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Sonoma
Bodega Bay
Roseville
Hayward
Calistoga
Big Sur
Santa Clara
Berkeley
Walnut Creek
Daly City
Fremont
Half Moon Bay
Vallejo
Salinas
Livermore
Turlock
Sunnyvale

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to San Francisco?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to San Francisco for you.

Can I find flights from Washington, D.C. to San Francisco with flexible booking policies on momondo?

Yes. All flights to San Francisco from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Washington, D.C. to San Francisco?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Francisco from Washington, D.C..

I’m not ready to book a flight from Washington, D.C. to San Francisco right now. Can momondo alert me if prices change?

Price alerts on flights to San Francisco from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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1 adult
Sat 1/3
Sat 1/10

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