S$179 Cheap Flights from San Francisco to Washington

View S$179 flight on Tue, 18 Nov, 2025Opens in a new window

Popular airlines from San Francisco Intl. Airport (SFO) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from San Francisco to Washington (SFO-IAD)

Prices were available within the past 7 days and start at S$179 for one-way flights and S$594 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$594 Return, found 1 day ago
S$594
Return
found 1 day ago
Select United flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$594 found 1 day ago
United
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$659 Return, found 1 day ago
S$659
Return
found 1 day ago
Select United flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$659 found 1 day ago
United
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$661 Return, found 1 day ago
S$661
Return
found 1 day ago
Select United flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$661 found 1 day ago
United
Sat, 22 Nov - Mon, 24 Nov
SFO
San Francisco
IAD
Washington
S$685 Return, found 1 day ago
S$685
Return
found 1 day ago
Select United flight, departing Sat, 22 Nov from San Francisco to Washington, returning Mon, 24 Nov, priced at S$685 found 1 day ago
Delta
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$699 Return, found 1 day ago
S$699
Return
found 1 day ago
Select Delta flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$699 found 1 day ago
Delta
Sat, 22 Nov - Mon, 24 Nov
SFO
San Francisco
IAD
Washington
S$713 Return, found 1 day ago
S$713
Return
found 1 day ago
Select Delta flight, departing Sat, 22 Nov from San Francisco to Washington, returning Mon, 24 Nov, priced at S$713 found 1 day ago
United
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$719 Return, found 1 day ago
S$719
Return
found 1 day ago
Select United flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$719 found 1 day ago
Delta
Sat, 22 Nov - Mon, 24 Nov
SFO
San Francisco
IAD
Washington
S$726 Return, found 1 day ago
S$726
Return
found 1 day ago
Select Delta flight, departing Sat, 22 Nov from San Francisco to Washington, returning Mon, 24 Nov, priced at S$726 found 1 day ago
United
Sat, 22 Nov - Mon, 24 Nov
SFO
San Francisco
IAD
Washington
S$737 Return, found 1 day ago
S$737
Return
found 1 day ago
Select United flight, departing Sat, 22 Nov from San Francisco to Washington, returning Mon, 24 Nov, priced at S$737 found 1 day ago
American Airlines
Fri, 6 Mar - Sun, 22 Mar
SFO
San Francisco
IAD
Washington
S$748 Return, found 1 day ago
S$748
Return
found 1 day ago
Select American Airlines flight, departing Fri, 6 Mar from San Francisco to Washington, returning Sun, 22 Mar, priced at S$748 found 1 day ago

Find the cheapest month to fly from San Francisco (SFO) to Washington (IAD)

April is typically the cheapest month to fly

From S$181 - S$628 per traveller.

Frequently asked questions

How much is a flight from SFO to IAD?
Round-trip flights between SFO and Dulles Intl. Airport start from S$594. This is based on fares quoted within the last 7 days on Expedia for flights departing within the next year — book ASAP so you don't miss out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Francisco Airport to Dulles Intl. Airport?
Each air carrier has its own set of terms and conditions. If you decide to cancel your getaway, head to our Customer Service Portal.
How do I find cheap flights from SFO to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for San Francisco Airport to IAD flights, you'll see a "no change fees" filter for you to select.
How far is the flight from San Francisco Intl. Airport (SFO) to Dulles Intl. Airport?
The flight distance between San Francisco Airport and IAD is 3,900 kilometres. Bring along a drink, some snacks and a good book to read. Keep yourself occupied and the time will fly by.
Which airlines fly direct from San Francisco Airport to Washington Dulles Intl. Airport (IAD)?
With 152 monthly flights from San Francisco Airport to Washington Dulles Intl. Airport (IAD), United Airlines (UA) is a top choice. Another carrier operating on this route is Alaska Airlines (AS). You'll have 30 flights each month to take your pick of.
Are SFO to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Airline tickets from SFO to Washington Dulles Intl. Airport (IAD) are available up to a year before departure on Expedia. And although you may occasionally nab great last-minute deal, it's never a sure thing. Also, booking your flights in advance means you'll have more choices — and you can avoid ending up with the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so check back often for all the latest specials.

Travel information

Origin airport
San Francisco Intl.
Destination airport
Washington Dulles Intl.
Return price
S$594
Distance
3862 km
Average flight time
9 hours 3 mins

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Perfect flights from San Francisco to Washington

Your Journey from San Francisco to Washington

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With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines. Our selection of flights from San Francisco Intl. to Washington Dulles Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

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Experience the joy of finding cheap flights from San Francisco Intl. to Washington Dulles Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$179 and roundtrip prices from S$594*.
 

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*Note: Prices may vary based on availability and are subject to change.
Perfect flights from San Francisco to Washington

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