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

Saturday, November 21st, 2026

4 round-trip options

Returning
Sat, Nov 28, 2026•7 Day Trip
$805 USD
Google Flights
Returning
Sun, Nov 29, 2026•8 Day Trip
$841 USD
Google Flights
Returning
Mon, Nov 30, 2026•9 Day Trip
$521 USD
Google Flights
Returning
Sat, Dec 5, 2026•14 Day Trip
$427 USD
Google Flights