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Cheap flights from San Francisco to Washington, D.C. from $131

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Washington, D.C. departing on 9/6. 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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Find the cheapest flights from San Francisco to Washington, D.C. (SFO-IAD)

Cheap round-trip flights

Logo
2:12 pm - 12:55 pmSFO-IAD
19h 43m2 stops
Logo
1:55 pm - 9:21 pmIAD-SFO
10h 26m1 stop
$258
Find Deal
Thu, Sep 18 - Mon, Sep 22
Frontier Logo
11:00 pm - 7:55 pmSFO-IAD
17h 55m1 stop
Frontier Logo
1:55 pm - 9:21 pmIAD-SFO
10h 26m1 stop
$259Frontier
Find Deal
Mon, Sep 15 - Thu, Sep 18
Frontier Logo
7:07 pm - 12:55 pmSFO-IAD
14h 48m2 stops
Frontier Logo
1:55 pm - 9:21 pmIAD-SFO
10h 26m1 stop
$260Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
United Airlines Logo
1:15 pm - 9:22 pmSFO-IAD
5h 07mnonstop
United Airlines Logo
6:30 am - 9:19 amIAD-SFO
5h 49mnonstop
$277United Airlines
Find Deal
Tue, Sep 23 - Tue, Sep 30
Hawaiian Airlines Logo
6:00 am - 4:52 pmSFO-IAD
7h 52m1 stop
Hawaiian Airlines Logo
5:52 pm - 11:40 pmIAD-SFO
8h 48m1 stop
$282Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Delta Logo
1:45 pm - 12:40 amSFO-IAD
7h 55m1 stop
Delta Logo
5:10 pm - 10:35 pmIAD-SFO
8h 25m1 stop
$287Delta
Find Deal
Tue, Oct 21 - Sat, Oct 25
Hawaiian Airlines Logo
6:00 am - 4:52 pmSFO-IAD
7h 52m1 stop
Hawaiian Airlines Logo
5:52 pm - 11:40 pmIAD-SFO
8h 48m1 stop
$296Hawaiian Airlines
Find Deal
Sat, Sep 20 - Sat, Sep 27
Delta Logo
11:00 pm - 11:28 amSFO-IAD
9h 28m1 stop
Delta Logo
5:25 pm - 10:26 pmIAD-SFO
8h 01m1 stop
$297Delta
Find Deal
Mon, Sep 22 - Sat, Sep 27
Alaska Airlines Logo
11:41 am - 5:13 pmSFO-IAD
26h 32m1 stop
Alaska Airlines Logo
5:40 pm - 8:53 amIAD-SFO
18h 13m2 stops
$300Alaska Airlines
Find Deal
Tue, Nov 4 - Mon, Nov 10
United Airlines Logo
10:45 pm - 7:02 amSFO-IAD
5h 17mnonstop
United Airlines Logo
8:30 am - 11:09 amIAD-SFO
5h 39mnonstop
$312United Airlines
Find Deal
Sat, Oct 4 - Sun, Oct 5

Frontier flights from San Francisco to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on San Francisco to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Sep 15
SFO11:00 pmSan Francisco
17h 55m
1 stop
IAD7:55 pmWashington, D.C. Dulles Intl
Sep 18
IAD1:55 pmWashington, D.C. Dulles Intl
10h 26m
1 stop
SFO9:21 pmSan Francisco
$259
Find similar
Frontier
Oct 2
SFO7:07 pmSan Francisco
14h 48m
2 stops
IAD12:55 pmWashington, D.C. Dulles Intl
Oct 6
IAD1:55 pmWashington, D.C. Dulles Intl
10h 26m
1 stop
SFO9:21 pmSan Francisco
$260
Find similar
Frontier
Sep 8
SFO3:28 pmSan Francisco
25h 27m
2 stops
IAD7:55 pmWashington, D.C. Dulles Intl
Sep 13
IAD7:00 amWashington, D.C. Dulles Intl
17h 21m
1 stop
SFO9:21 pmSan Francisco
$261
Find similar

Delta flights from San Francisco to Washington, D.C. Dulles Intl Airport

Our best Delta deals on San Francisco to Washington, D.C. Dulles Intl Airport flight tickets
Delta
Oct 21
SFO1:45 pmSan Francisco
7h 55m
1 stop
IAD12:40 amWashington, D.C. Dulles Intl
Oct 25
IAD5:10 pmWashington, D.C. Dulles Intl
8h 25m
1 stop
SFO10:35 pmSan Francisco
$287
Find similar
Delta
Sep 22
SFO11:00 pmSan Francisco
9h 28m
1 stop
IAD11:28 amWashington, D.C. Dulles Intl
Sep 27
IAD5:25 pmWashington, D.C. Dulles Intl
8h 01m
1 stop
SFO10:26 pmSan Francisco
$297
Find similar
Delta
Sep 30
SFO12:45 amSan Francisco
7h 33m
1 stop
IAD11:18 amWashington, D.C. Dulles Intl
Oct 6
IAD5:52 pmWashington, D.C. Dulles Intl
9h 13m
1 stop
SFO12:05 amSan Francisco
$308
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Washington, D.C. Dulles Intl Airport 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 August 28, 2025.
Use the filters below to find and compare flights from San Francisco to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 9/18

2:12 pm-12:55 pm

2 stops19h 43m

Washington, D.C. Dulles Intl

Mon 9/22

1:55 pm-9:21 pm

1 stop10h 26m

$258

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 9/15

11:00 pm-7:55 pm

1 stop17h 55m

Washington, D.C. Dulles Intl

Thu 9/18

1:55 pm-9:21 pm

1 stop10h 26m

$259

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 10/2

7:07 pm-12:55 pm

2 stops14h 48m

Washington, D.C. Dulles Intl

Mon 10/6

1:55 pm-9:21 pm

1 stop10h 26m

$260

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 9/23

1:15 pm-9:22 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Tue 9/30

6:30 am-9:19 am

Nonstop5h 49m

$277

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 9/20

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Sat 9/27

5:52 pm-11:40 pm

1 stop8h 48m

$282

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 10/21

1:45 pm-12:40 am

1 stop7h 55m

Washington, D.C. Dulles Intl

Sat 10/25

5:10 pm-10:35 pm

1 stop8h 25m

$287

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 9/20

6:00 am-4:52 pm

1 stop7h 52m

Washington, D.C. Dulles Intl

Sat 9/27

5:52 pm-11:40 pm

1 stop8h 48m

$296

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 9/22

11:00 pm-11:28 am

1 stop9h 28m

Washington, D.C. Dulles Intl

Sat 9/27

5:25 pm-10:26 pm

1 stop8h 01m

$297

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 11/4

11:41 am-5:13 pm

1 stop26h 32m

Washington, D.C. Dulles Intl

Mon 11/10

5:40 pm-8:53 am

2 stops18h 13m

$300

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 10/4

10:45 pm-7:02 am

Nonstop5h 17m

Washington, D.C. Dulles Intl

Sun 10/5

8:30 am-11:09 am

Nonstop5h 39m

$312

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 Washington, D.C. from

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

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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?

In general, July is the cheapest month to fly from San Francisco to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $397. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of July, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $407.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $513. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Francisco to Washington, D.C. Dulles Intl Airport for around $657.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from San Francisco in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $485 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $588 on average. Flights to Washington, D.C. Dulles Intl Airport from San Francisco at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $457 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from San Francisco for as low as $386 on momondo.

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

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

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

As of August 2025, prices for San Francisco to Washington, D.C. Dulles Intl Airport flights are approximately 42% cheaper when compared to flights at the same time last year.

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

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

Cheap San Francisco to Washington, D.C. Dulles Intl Airport (SFO to IAD) flight deals and tips

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

Best Price Found

$220

Fastest flight time

4h 59m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from San Francisco in the past 72 hours is $220. The best round-trip flight deal from San Francisco to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $406.
The fastest flight from San Francisco to Washington, D.C. Dulles Intl Airport takes 4h 59m
Direct flights go from San Francisco to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is San Francisco to Washington, D.C. Dulles Intl by plane?

    The straight-line distance from San Francisco to Washington, D.C. Dulles Intl is 2410.3 mi. Flights usually cover this in 5h 07m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from San Francisco Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

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

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

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

Compare and see reviews for airlines that fly from San Francisco to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $48Free CancellationRating
6.3
8,028 reviews
Search Spirit Airlines flights
FrontierPriceFrom $128Free CancellationRating
5.8
3,204 reviews
Search Frontier flights
American AirlinesPriceFrom $172Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Sun Country AirPriceFrom $218Free CancellationRating
6.9
331 reviews
Search Sun Country Air flights
DeltaPriceFrom $237Free CancellationRating
7.9
7,977 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $250Free CancellationRating
7.8
2,690 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $296Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
8,944 reviews
Search United Airlines flights

  • United Airlines Flights From San Francisco to Washington, D.C. Dulles Intl Airport

    United Airlines flight deals from San Francisco to Washington, D.C. Dulles Intl Airport start from $297 round-trip. Over the 53 United Airlines flights for this route in a normal week, average airfare is usually $503 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Waldorf
Tysons
Laurel
Silver Spring
Colonial Beach
Fredericksburg
Harpers Ferry
Towson
Manassas
Rockville
Gaithersburg
Reston
Fairfax
Glen Burnie

Why use momondo?

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

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 San Francisco to Washington, D.C. for you.

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

All flight searches from San Francisco to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

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

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 Washington, D.C. from San Francisco.

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

Yes momondo offers price alerts on flights to Washington, D.C. from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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