Cheap flights from San Francisco to Washington, D.C. from $167

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 8/10. 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
0 bags

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:33 pm - 8:12 am
SFO
-
IAD
13h 39m
1 stop
Multiple Airlines Logo
6:00 am - 6:01 pm
IAD
-
SFO
15h 01m
2 stops
$333Multiple Airlines
Thu, May 28 - Tue, Jun 2
Frontier Logo
10:10 pm - 10:22 am
SFO
-
IAD
9h 12m
1 stop
Frontier Logo
9:50 am - 7:53 pm
IAD
-
SFO
13h 03m
1 stop
$334Frontier
Thu, Jul 2 - Tue, Jul 7
Frontier Logo
10:10 pm - 10:13 am
SFO
-
IAD
9h 03m
1 stop
Frontier Logo
9:50 am - 4:32 pm
IAD
-
SFO
9h 42m
1 stop
$335Frontier
Tue, Jul 14 - Mon, Aug 17
Frontier Logo
8:41 pm - 8:12 am
SFO
-
IAD
8h 31m
1 stop
Frontier Logo
7:45 am - 11:04 pm
IAD
-
SFO
18h 19m
2 stops
$336Frontier
Wed, Jun 3 - Sun, Jun 7
Frontier Logo
8:48 pm - 10:12 am
SFO
-
IAD
10h 24m
2 stops
Frontier Logo
1:31 pm - 11:04 pm
IAD
-
SFO
12h 33m
1 stop
$337Frontier
Wed, May 27 - Mon, Jun 8
Multiple Airlines Logo
10:15 pm - 10:12 am
SFO
-
IAD
8h 57m
1 stop
Multiple Airlines Logo
6:14 pm - 9:16 am
IAD
-
SFO
18h 02m
2 stops
$338Multiple Airlines
Sun, May 24 - Mon, Aug 10
Frontier Logo
8:44 pm - 8:12 am
SFO
-
IAD
8h 28m
1 stop
Frontier Logo
11:07 am - 7:57 pm
IAD
-
SFO
11h 50m
1 stop
$339Frontier
Sun, May 24 - Fri, Jun 5
Frontier Logo
10:15 pm - 10:12 am
SFO
-
IAD
8h 57m
1 stop
Frontier Logo
11:24 am - 7:55 pm
IAD
-
SFO
11h 31m
1 stop
$340Frontier
Sat, May 16 - Thu, Jun 11
Frontier Logo
10:15 pm - 10:12 am
SFO
-
IAD
8h 57m
1 stop
Frontier Logo
9:12 am - 4:41 pm
IAD
-
SFO
10h 29m
1 stop
$341Frontier
Mon, May 18 - Thu, May 21
Frontier Logo
10:15 pm - 10:12 am
SFO
-
IAD
8h 57m
1 stop
Frontier Logo
9:12 am - 4:41 pm
IAD
-
SFO
10h 29m
1 stop
$342Frontier
Mon, May 18 - Thu, May 21

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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
May 27
SFO1:17 pmSan Francisco
7h 56m
1 stop
IAD12:13 amWashington, D.C. Dulles Intl
Jun 3
IAD6:10 amWashington, D.C. Dulles Intl
14h 26m
1 stop
SFO5:36 pmSan Francisco
$358
American Airlines
Aug 12
SFO5:05 amSan Francisco
8h 59m
1 stop
IAD5:04 pmWashington, D.C. Dulles Intl
Aug 22
IAD6:00 amWashington, D.C. Dulles Intl
16h 25m
1 stop
SFO7:25 pmSan Francisco
$359
American Airlines
May 23
SFO1:35 pmSan Francisco
12h 28m
1 stop
IAD5:03 amWashington, D.C. Dulles Intl
May 30
IAD6:10 amWashington, D.C. Dulles Intl
14h 26m
1 stop
SFO5:36 pmSan Francisco
$363

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
Jul 2
SFO8:39 pmSan Francisco
8h 46m
1 stop
IAD8:25 amWashington, D.C. Dulles Intl
Jul 7
IAD7:49 amWashington, D.C. Dulles Intl
14h 24m
1 stop
SFO7:13 pmSan Francisco
$334
Frontier
Jul 14
SFO10:10 pmSan Francisco
9h 03m
1 stop
IAD10:13 amWashington, D.C. Dulles Intl
Aug 17
IAD9:50 amWashington, D.C. Dulles Intl
13h 03m
1 stop
SFO7:53 pmSan Francisco
$335
Frontier
Jun 3
SFO8:41 pmSan Francisco
8h 31m
1 stop
IAD8:12 amWashington, D.C. Dulles Intl
Jun 7
IAD7:45 amWashington, D.C. Dulles Intl
18h 19m
2 stops
SFO11:04 pmSan Francisco
$336

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 May 4, 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

Thu 5/28

3:33 pm-8:12 am

1 stop13h 39m

Washington, D.C. Dulles Intl

Tue 6/2

6:00 am-6:01 pm

2 stops15h 01m

$333

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Thu 7/2

10:10 pm-10:22 am

1 stop9h 12m

Washington, D.C. Dulles Intl

Tue 7/7

9:50 am-7:53 pm

1 stop13h 03m

$334
Quickest round-trip

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Tue 7/14

10:10 pm-10:13 am

1 stop9h 03m

Washington, D.C. Dulles Intl

Mon 8/17

9:50 am-4:32 pm

1 stop9h 42m

$335

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 6/3

8:41 pm-8:12 am

1 stop8h 31m

Washington, D.C. Dulles Intl

Sun 6/7

7:45 am-11:04 pm

2 stops18h 19m

$336

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Wed 5/27

8:48 pm-10:12 am

2 stops10h 24m

Washington, D.C. Dulles Intl

Mon 6/8

1:31 pm-11:04 pm

1 stop12h 33m

$337

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sun 5/24

10:15 pm-10:12 am

1 stop8h 57m

Washington, D.C. Dulles Intl

Mon 8/10

6:14 pm-9:16 am

2 stops18h 02m

$338

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sun 5/24

8:44 pm-8:12 am

1 stop8h 28m

Washington, D.C. Dulles Intl

Fri 6/5

11:07 am-7:57 pm

1 stop11h 50m

$339

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Sat 5/16

10:15 pm-10:12 am

1 stop8h 57m

Washington, D.C. Dulles Intl

Thu 6/11

11:24 am-7:55 pm

1 stop11h 31m

$340

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 5/18

10:15 pm-10:12 am

1 stop8h 57m

Washington, D.C. Dulles Intl

Thu 5/21

9:12 am-4:41 pm

1 stop10h 29m

$341

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

Mon 5/18

10:15 pm-10:12 am

1 stop8h 57m

Washington, D.C. Dulles Intl

Thu 5/21

9:12 am-4:41 pm

1 stop10h 29m

$342

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 $387. 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 $397.

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 $527. 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 $703.

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 $479 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 $644 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 $453 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 $353 on momondo.

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 May 2026, prices for San Francisco to Washington, D.C. Dulles Intl Airport flights are approximately 30% 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

$237

Fastest flight time

5h 10m

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 $237. 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 $495.
The fastest flight from San Francisco to Washington, D.C. Dulles Intl Airport takes 5h 10m
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 10m, 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
7.9
8,459 reviews
Search Delta flights
FrontierPriceFrom $129Free CancellationRating
5.6
2,965 reviews
Search Frontier flights
American AirlinesPriceFrom $172Free CancellationRating
7.1
11,670 reviews
Search American Airlines flights
SouthwestPriceFrom $196Free CancellationRating
7.9
4,307 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $237Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $238Free CancellationRating
7.9
12,325 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $260Free CancellationRating
7.4
9,680 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 $260 round-trip. Over the 63 United Airlines flights for this route in a normal week, average airfare is usually $494 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
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Sterling
Linthicum Heights
Tysons
Bethesda
Springfield

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
Wed 6/3
Wed 6/10

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