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

Friday, November 20th, 2026

4 round-trip options

Returning
Fri, Nov 27, 2026•7 Day Trip
$610 USD
Google Flights
Returning
Sat, Nov 28, 2026•8 Day Trip
$956 USD
Google Flights
Returning
Sun, Nov 29, 2026•9 Day Trip
$993 USD
Google Flights
Returning
Fri, Dec 4, 2026•14 Day Trip
$544 USD
Google Flights