Cheap Flights From San Francisco Intl. (SFO) To Washington Dulles Intl. (IAD)

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Cheapest Flights from San Francisco (SFO) to Washington (IAD)

The cheapest flights to Washington Dulles Intl. found within the past 7 days were CA $679 round trip and CA $238 one way. Prices and availability subject to change. Additional terms may apply.

Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $679 Roundtrip, found 12 hours ago
CA $679
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $679 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $712 Roundtrip, found 12 hours ago
CA $712
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $712 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $748 Roundtrip, found 12 hours ago
CA $748
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $748 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $751 Roundtrip, found 12 hours ago
CA $751
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $751 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $785 Roundtrip, found 12 hours ago
CA $785
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $785 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $786 Roundtrip, found 12 hours ago
CA $786
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $786 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $821 Roundtrip, found 12 hours ago
CA $821
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $821 found 12 hours ago
Fri, Oct. 24 - Mon, Oct. 27
SFO
San Francisco
IAD
Washington
CA $859 Roundtrip, found 12 hours ago
CA $859
Roundtrip
found 12 hours ago
Select Alaska Airlines flight, departing Fri, Oct. 24 from San Francisco to Washington, returning Mon, Oct. 27, priced at CA $859 found 12 hours ago
Mon, Aug. 18 - Fri, Aug. 22
SFO
San Francisco
IAD
Washington
CA $1,305 Roundtrip, found 2 days ago
CA $1,305
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Aug. 18 from San Francisco to Washington, returning Fri, Aug. 22, priced at CA $1,305 found 2 days ago
Fri, Aug. 22 - Sun, Aug. 24
SFO
San Francisco
IAD
Washington
CA $1,313 Roundtrip, found 1 day ago
CA $1,313
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Aug. 22 from San Francisco to Washington, returning Sun, Aug. 24, priced at CA $1,313 found 1 day ago

Frequently asked questions

Are there direct flights from SFO to Dulles Intl. Airport?
For nonstop flights from SFO to Dulles Intl. Airport, look into United Airlines. This is the airline for you if you need to get from A to B without stress.
What airlines fly from SFO to Dulles Intl. Airport?
If you're on the lookout for an airline that flies straight from San Francisco to Sterling and rates highly with other seasoned travelers, look no further than United Airlines. They offer as many as 143 services on this route each month.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from San Francisco (SFO)

Travelers at SFO love to visit these top cities. Roam to the top destinations from San Francisco (SFO) today with the cheap prices from Travelocity!

Popular Flight Routes from Washington (IAD)

Travelers at IAD love to visit these top cities. Roam to the top destinations from Washington(IAD) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.