Cheap Flights from San Francisco (SFO) to Washington (IAD) from HK$1,091~

View HK$1,091 flight on Sat, 27 Sep 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$1,091 for one-way flights and HK$2,493 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$2,493 Return, found 3 days ago
HK$2,493
Return
found 3 days ago
Select Delta flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$2,493 found 3 days ago
Delta
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$2,964 Return, found 3 days ago
HK$2,964
Return
found 3 days ago
Select Delta flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$2,964 found 3 days ago
United
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$2,975 Return, found 3 days ago
HK$2,975
Return
found 3 days ago
Select United flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$2,975 found 3 days ago
Delta
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,041 Return, found 3 days ago
HK$3,041
Return
found 3 days ago
Select Delta flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,041 found 3 days ago
American Airlines
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,052 Return, found 3 days ago
HK$3,052
Return
found 3 days ago
Select American Airlines flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,052 found 3 days ago
American Airlines
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,202 Return, found 3 days ago
HK$3,202
Return
found 3 days ago
Select American Airlines flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,202 found 3 days ago
Delta
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,277 Return, found 3 days ago
HK$3,277
Return
found 3 days ago
Select Delta flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,277 found 3 days ago
United
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,319 Return, found 3 days ago
HK$3,319
Return
found 3 days ago
Select United flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,319 found 3 days ago
United
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,362 Return, found 3 days ago
HK$3,362
Return
found 3 days ago
Select United flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,362 found 3 days ago
United
Tue, 2 Sep - Fri, 5 Sep
SFO
San Francisco
IAD
Washington
HK$3,373 Return, found 3 days ago
HK$3,373
Return
found 3 days ago
Select United flight, departing Tue, 2 Sep from San Francisco to Washington, returning Fri, 5 Sep, priced at HK$3,373 found 3 days ago

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

April is typically the cheapest month to fly

From HK$1,099 - HK$3,078 per traveller.

Graph displaying average flight prices per month

San Francisco to Washington route information
Origin airport
San Francisco Intl.
Destination airport
Washington Dulles Intl.
Return price
HK$2,181
Distance
3862 km
Average flight time
8 hours 9 mins

Flights from San Francisco to Chantilly

Book cheap flights from San Francisco (SFO) to Chantilly (IAD) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from San Francisco (SFO) to Chantilly (IAD) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your San Francisco (SFO) to Chantilly (IAD) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Chantilly flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Chantilly and things to do in Chantilly for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Chantilly more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Chantilly is HK$1,091 now!

 

Frequently asked questions

How much is a flight from SFO to IAD?
Round-trip flights between SFO and Dulles Intl. Airport start from HK$2,493. 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 kilometers. 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.

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