Cheap flights from San Francisco to Washington, D.C. from $190

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 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:56 pm - 8:04 am
SFO
-
IAD
8h 08m
1 stop
Frontier Logo
7:00 am - 4:57 pm
IAD
-
SFO
12h 57m
2 stops
$383Frontier
Sat, Aug 29 - Thu, Sep 10
Frontier Logo
12:29 am - 4:40 pm
SFO
-
IAD
13h 11m
2 stops
Frontier Logo
9:50 am - 3:25 pm
IAD
-
SFO
8h 35m
1 stop
$384Frontier
Mon, Jul 27 - Wed, Jul 29
Frontier Logo
9:00 pm - 8:20 am
SFO
-
IAD
8h 20m
1 stop
Frontier Logo
9:50 am - 7:52 pm
IAD
-
SFO
13h 02m
1 stop
$385Frontier
Wed, Jul 8 - Mon, Jul 13
Frontier Logo
11:00 pm - 4:34 pm
SFO
-
IAD
14h 34m
1 stop
Frontier Logo
9:30 am - 8:35 pm
IAD
-
SFO
14h 05m
1 stop
$386Frontier
Fri, Jul 31 - Sat, Aug 8
United Airlines Logo
10:35 pm - 7:00 am
SFO
-
IAD
5h 25mnonstop
United Airlines Logo
9:45 am - 12:30 pm
IAD
-
SFO
5h 45mnonstop
$387United Airlines
Fri, Sep 11 - Sat, Sep 12
Multiple Airlines Logo
11:59 pm - 12:27 pm
SFO
-
IAD
9h 28m
1 stop
Multiple Airlines Logo
9:50 am - 8:35 pm
IAD
-
SFO
13h 45m
1 stop
$388Multiple Airlines
Thu, Aug 13 - Mon, Aug 17
Multiple Airlines Logo
7:28 pm - 2:17 pm
SFO
-
IAD
15h 49m
1 stop
Multiple Airlines Logo
6:20 am - 7:03 pm
IAD
-
SFO
15h 43m
1 stop
$389Multiple Airlines
Tue, Sep 1 - Fri, Sep 4
Frontier Logo
9:00 pm - 8:20 am
SFO
-
IAD
8h 20m
1 stop
Frontier Logo
9:50 am - 7:52 pm
IAD
-
SFO
13h 02m
1 stop
$390Frontier
Thu, Jul 9 - Tue, Jul 14
Multiple Airlines Logo
7:08 am - 6:14 pm
SFO
-
IAD
8h 06m
1 stop
Multiple Airlines Logo
7:00 am - 6:20 pm
IAD
-
SFO
14h 20m
1 stop
$391Multiple Airlines
Tue, Sep 8 - Wed, Sep 9
United Airlines Logo
1:15 pm - 9:22 pm
SFO
-
IAD
5h 07mnonstop
United Airlines Logo
10:10 pm - 12:59 am
IAD
-
SFO
5h 49mnonstop
$392United Airlines
Wed, Sep 2 - Mon, Sep 7

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

Our best Alaska Airlines deals on San Francisco to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Oct 7
SFO7:05 amSan Francisco
7h 48m
1 stop
IAD5:53 pmWashington, D.C. Dulles Intl
Nov 3
IAD6:40 pmWashington, D.C. Dulles Intl
8h 08m
1 stop
SFO11:48 pmSan Francisco
$405
Alaska Airlines
Oct 16
SFO7:05 amSan Francisco
7h 48m
1 stop
IAD5:53 pmWashington, D.C. Dulles Intl
Oct 24
IAD7:24 pmWashington, D.C. Dulles Intl
17h 13m
1 stop
SFO9:37 amSan Francisco
$412
Alaska Airlines
Sep 3
SFO7:08 amSan Francisco
8h 06m
1 stop
IAD6:14 pmWashington, D.C. Dulles Intl
Sep 8
IAD5:57 pmWashington, D.C. Dulles Intl
18h 40m
1 stop
SFO9:37 amSan Francisco
$424

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

Our best American Airlines deals on San Francisco to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Jul 31
SFO12:26 amSan Francisco
7h 41m
1 stop
IAD11:07 amWashington, D.C. Dulles Intl
Aug 10
IAD5:34 pmWashington, D.C. Dulles Intl
8h 06m
1 stop
SFO10:40 pmSan Francisco
$393
American Airlines
Oct 1
SFO1:09 pmSan Francisco
7h 39m
1 stop
IAD11:48 pmWashington, D.C. Dulles Intl
Oct 5
IAD6:41 pmWashington, D.C. Dulles Intl
8h 31m
1 stop
SFO12:12 amSan Francisco
$409
American Airlines
Jul 18
SFO5:29 amSan Francisco
10h 08m
1 stop
IAD6:37 pmWashington, D.C. Dulles Intl
Jul 22
IAD6:14 amWashington, D.C. Dulles Intl
9h 52m
1 stop
SFO1:06 pmSan Francisco
$411

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 June 23, 2026.
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

Cheapest round-trip

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 8/29

8:56 pm-8:04 am

1 stop8h 08m

Washington, D.C. Dulles Intl

Thu 9/10

7:00 am-4:57 pm

2 stops12h 57m

$383

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 7/27

12:29 am-4:40 pm

2 stops13h 11m

Washington, D.C. Dulles Intl

Wed 7/29

9:50 am-3:25 pm

1 stop8h 35m

$384

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 7/8

9:00 pm-8:20 am

1 stop8h 20m

Washington, D.C. Dulles Intl

Mon 7/13

9:50 am-7:52 pm

1 stop13h 02m

$385

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Fri 7/31

11:00 pm-4:34 pm

1 stop14h 34m

Washington, D.C. Dulles Intl

Sat 8/8

9:30 am-8:35 pm

1 stop14h 05m

$386

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Fri 9/11

10:35 pm-7:00 am

Nonstop5h 25m

Washington, D.C. Dulles Intl

Sat 9/12

9:45 am-12:30 pm

Nonstop5h 45m

$387

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 8/13

11:59 pm-12:27 pm

1 stop9h 28m

Washington, D.C. Dulles Intl

Mon 8/17

9:50 am-8:35 pm

1 stop13h 45m

$388

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 9/1

7:28 pm-2:17 pm

1 stop15h 49m

Washington, D.C. Dulles Intl

Fri 9/4

6:20 am-7:03 pm

1 stop15h 43m

$389

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 7/9

9:00 pm-8:20 am

1 stop8h 20m

Washington, D.C. Dulles Intl

Tue 7/14

9:50 am-7:52 pm

1 stop13h 02m

$390

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 9/8

7:08 am-6:14 pm

1 stop8h 06m

Washington, D.C. Dulles Intl

Wed 9/9

7:00 am-6:20 pm

1 stop14h 20m

$391
Quickest round-trip

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 9/2

1:15 pm-9:22 pm

Nonstop5h 07m

Washington, D.C. Dulles Intl

Mon 9/7

10:10 pm-12:59 am

Nonstop5h 49m

$392

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 typical price of a round-trip flight between San Francisco and Washington, D.C. Dulles Intl Airport?

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

In general, February 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 $386. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in October 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 Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday 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 $540. 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 $756.

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 $497 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $699 on average. Flights to Washington, D.C. Dulles Intl Airport from San Francisco in the morning 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 from San Francisco 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 $480 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 $368 on momondo.

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

There are 4 cabin classes available to choose from on San Francisco to Washington, D.C. Dulles Intl Airport 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 San Francisco to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between San Francisco to Washington, D.C. Dulles Intl Airport.

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

As of June 2026, prices for San Francisco to Washington, D.C. Dulles Intl Airport flights are approximately 33% 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

$330

Fastest flight time

5h 07m

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 $330. 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 $536.
The fastest flight from San Francisco to Washington, D.C. Dulles Intl Airport takes 5h 07m
Direct flights go from San Francisco to Washington, D.C. Dulles Intl Airport every day.

Frequently asked questions about flying from San Francisco to Washington, D.C. Dulles Intl Airport

  • 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 2409.9 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
DeltaPriceFrom $128Free CancellationRating
7.8
8,425 reviews
Search Delta flights
FrontierPriceFrom $129Free CancellationRating
5.6
2,870 reviews
Search Frontier flights
American AirlinesPriceFrom $172Free CancellationRating
7.1
11,744 reviews
Search American Airlines flights
SouthwestPriceFrom $196Free CancellationRating
7.9
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $264Free CancellationRating
7.4
9,874 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $297Free CancellationRating
7.9
12,563 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $298Free CancellationRating
7.8
2,826 reviews
Search Hawaiian 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 $264 round-trip. Over the 31 United Airlines flights for this route in a normal week, average airfare is usually $513 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
National Harbor
Arlington
Gettysburg
Winchester
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Colonial Beach
Linthicum Heights
Rockville
Silver Spring
Towson
Manassas
Sterling
Tysons
Springfield
Fairfax

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.

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1 adult
Thu 7/23
Thu 7/30

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