San Francisco (SFO) to Washington (IAD) flight deal in economy from $357

United AirlinesUAUnited Airlines
Round Trip•Economy
United StatesSFO

San Francisco International Airport

San Francisco, United States
United StatesIAD

Washington Dulles International Airport

Washington, United States
$448 USD
-20%$357 USD
Verified 14 days ago
Fair Availability
25% of dates checked are available within 10% of the lowest price

Sunday, November 29th, 2026

4 round-trip options

Returning
Sun, Dec 6, 2026•7 Day Trip
$685 USD
Google Flights
Returning
Mon, Dec 7, 2026•8 Day Trip
$685 USD
Google Flights
Returning
Tue, Dec 8, 2026•9 Day Trip
$685 USD
Google Flights
Returning
Sun, Dec 13, 2026•14 Day Trip
$693 USD
Google Flights