Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Washington, D.C. 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 San Francisco to Washington, D.C. departing on 2/17. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
10:35 am - 11:06 pm
SFO
-
IAD
9h 31m2 stops
Delta Logo
2:20 pm - 11:28 pm
IAD
-
SFO
12h 08m2 stops
$256Delta
mié., ene. 7 - lun., ene. 12
United Airlines Logo
4:47 pm - 12:59 am
SFO
-
IAD
5h 12mnonstop
United Airlines Logo
2:10 pm - 5:19 pm
IAD
-
SFO
6h 09mnonstop
$257United Airlines
mar., ene. 6 - sáb., ene. 10
Southwest Logo
9:50 am - 9:55 pm
SFO
-
IAD
9h 05m1 stop
Southwest Logo
5:10 am - 11:55 am
IAD
-
SFO
9h 45m2 stops
$259Southwest
mié., feb. 25 - vie., feb. 27
Frontier Logo
11:28 pm - 11:28 am
SFO
-
IAD
9h 00m1 stop
Frontier Logo
9:59 pm - 1:18 pm
IAD
-
SFO
18h 19m2 stops
$261Frontier
vie., ene. 9 - dom., ene. 11
Frontier Logo
11:20 pm - 11:43 am
SFO
-
IAD
9h 23m1 stop
Frontier Logo
6:00 am - 1:24 pm
IAD
-
SFO
10h 24m1 stop
$262Frontier
sáb., ene. 17 - lun., ene. 19
Southwest Logo
5:50 am - 4:00 pm
SFO
-
IAD
7h 10m1 stop
Southwest Logo
3:45 pm - 8:35 pm
IAD
-
SFO
7h 50m1 stop
$263Southwest
vie., ene. 16 - sáb., ene. 17
American Airlines Logo
7:00 am - 9:17 pm
SFO
-
IAD
11h 17m1 stop
American Airlines Logo
1:08 pm - 10:34 pm
IAD
-
SFO
12h 26m2 stops
$264American Airlines
mar., ene. 6 - vie., ene. 9
Frontier Logo
4:01 pm - 11:28 am
SFO
-
IAD
16h 27m2 stops
Frontier Logo
6:00 am - 1:18 pm
IAD
-
SFO
10h 18m1 stop
$265Frontier
mié., ene. 7 - dom., ene. 11
Multiple Airlines Logo
11:20 pm - 11:38 am
SFO
-
IAD
9h 18m1 stop
Multiple Airlines Logo
6:29 pm - 8:47 am
IAD
-
SFO
17h 18m2 stops
$267Multiple Airlines
lun., dic. 29 - mar., ene. 6
Frontier Logo
11:20 pm - 11:28 am
SFO
-
IAD
9h 08m1 stop
Frontier Logo
6:00 am - 1:18 pm
IAD
-
SFO
10h 18m1 stop
$268Frontier
lun., ene. 5 - vie., ene. 9

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
Jan 7
SFO10:35 amSan Francisco
9h 31m
2 stops
IAD11:06 pmWashington, D.C. Dulles Intl
Jan 12
IAD2:20 pmWashington, D.C. Dulles Intl
12h 08m
2 stops
SFO11:28 pmSan Francisco
$256
Find similar
Delta
Feb 15
SFO10:20 amSan Francisco
9h 50m
1 stop
IAD11:10 pmWashington, D.C. Dulles Intl
Feb 19
IAD7:30 amWashington, D.C. Dulles Intl
9h 18m
1 stop
SFO1:48 pmSan Francisco
$285
Find similar
Delta
Mar 8
SFO6:05 amSan Francisco
14h 43m
1 stop
IAD11:48 pmWashington, D.C. Dulles Intl
Mar 9
IAD2:07 pmWashington, D.C. Dulles Intl
12h 45m
2 stops
SFO11:52 pmSan Francisco
$290
Find similar

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

Our best United Airlines deals on San Francisco to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Jan 6
SFO4:47 pmSan Francisco
5h 12m
IAD12:59 amWashington, D.C. Dulles Intl
Jan 10
IAD2:10 pmWashington, D.C. Dulles Intl
6h 09m
SFO5:19 pmSan Francisco
$257
Find similar
United Airlines
Feb 6
SFO10:35 pmSan Francisco
5h 12m
IAD6:47 amWashington, D.C. Dulles Intl
Feb 7
IAD8:25 amWashington, D.C. Dulles Intl
5h 58m
SFO11:23 amSan Francisco
$272
Find similar
United Airlines
Jan 16
SFO9:20 pmSan Francisco
5h 12m
IAD5:32 amWashington, D.C. Dulles Intl
Jan 19
IAD8:25 amWashington, D.C. Dulles Intl
5h 58m
SFO11:23 amSan Francisco
$297
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 diciembre 4, 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

mié. 1/7

10:35 am-11:06 pm

2 stops9h 31m

Washington, D.C. Dulles Intl

lun. 1/12

2:20 pm-11:28 pm

2 stops12h 08m

$256

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

mar. 1/6

4:47 pm-12:59 am

Nonstop5h 12m

Washington, D.C. Dulles Intl

sáb. 1/10

2:10 pm-5:19 pm

Nonstop6h 09m

$257

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

mié. 2/25

9:50 am-9:55 pm

1 stop9h 05m

Washington, D.C. Dulles Intl

vie. 2/27

5:10 am-11:55 am

2 stops9h 45m

$259

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

vie. 1/9

11:28 pm-11:28 am

1 stop9h 00m

Washington, D.C. Dulles Intl

dom. 1/11

9:59 pm-1:18 pm

2 stops18h 19m

$261

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

sáb. 1/17

11:20 pm-11:43 am

1 stop9h 23m

Washington, D.C. Dulles Intl

lun. 1/19

6:00 am-1:24 pm

1 stop10h 24m

$262

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

vie. 1/16

5:50 am-4:00 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

sáb. 1/17

3:45 pm-8:35 pm

1 stop7h 50m

$263

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

mar. 1/6

7:00 am-9:17 pm

1 stop11h 17m

Washington, D.C. Dulles Intl

vie. 1/9

1:08 pm-10:34 pm

2 stops12h 26m

$264

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

mié. 1/7

4:01 pm-11:28 am

2 stops16h 27m

Washington, D.C. Dulles Intl

dom. 1/11

6:00 am-1:18 pm

1 stop10h 18m

$265

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

lun. 12/29

11:20 pm-11:38 am

1 stop9h 18m

Washington, D.C. Dulles Intl

mar. 1/6

6:29 pm-8:47 am

2 stops17h 18m

$267

San FranciscoWashington, D.C.

SFO - IAD

SFOIAD

San Francisco

lun. 1/5

11:20 pm-11:28 am

1 stop9h 08m

Washington, D.C. Dulles Intl

vie. 1/9

6:00 am-1:18 pm

1 stop10h 18m

$268

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 $492. 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 $660.

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 $453 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 $602 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 $442 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 $378 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.

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

You could potentially save up to 2% on your flight if you consider stops on a San Francisco to Washington, D.C. Dulles Intl Airport flight.

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

As of December 2025, prices for San Francisco to Washington, D.C. Dulles Intl Airport flights are approximately 15% 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

$213

Fastest flight time

4h 53m

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 $213. 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 $438.
The fastest flight from San Francisco to Washington, D.C. Dulles Intl Airport takes 4h 53m
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 12m, 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
FrontierPriceFrom $130Free CancellationRating
5.8
3,092 reviews
Search Frontier flights
American AirlinesPriceFrom $172Free CancellationRating
7.2
11,044 reviews
Search American Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.9
8,010 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $251Free CancellationRating
7.8
2,815 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $255Free CancellationRating
8.0
11,400 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $273Free CancellationRating
7.4
9,066 reviews
Search United Airlines flights
SouthwestPriceFrom $286Free CancellationRating
8.0
4,254 reviews
Search Southwest 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 $273 round-trip. Over the 29 United Airlines flights for this route in a normal week, average airfare is usually $485 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Harpers Ferry
Reston
Manassas
Gaithersburg
Sterling
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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
sáb. 1/3
sáb. 1/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.