SFO to IAD from $357 in economy – flightdeals.net

Home Premium Fare Deals About

United Airlines

UAUnited Airlines

Round Trip•Economy

San Francisco International Airport

San Francisco, United States

Washington Dulles International Airport

Washington, United States

$448 USD

-20%$357 USD

Verified 14 days ago

December 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$511 1$427 2$427 3$427 4$427 5$427 6$427 7$427 8$427 9$427 10$427 11$427 12$464 13$464 14$464 15$427 16$427 17$518 18$608 19$617 20$584 21$427 22$493 23$503 24$427 25$427 26$427 27$464 28$427 29$427 30$427 31$427 1$427 2$608 3$497

Fair Availability

25% of dates checked are available within 10% of the lowest price

Friday, December 11th, 2026

4 round-trip options

Returning

Fri, Dec 18, 2026•7 Day Trip

$581 USD

Returning

Sat, Dec 19, 2026•8 Day Trip

$502 USD

Returning

Sun, Dec 20, 2026•9 Day Trip

$464 USD

Returning

Fri, Dec 25, 2026•14 Day Trip

$427 USD