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

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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

Monday, December 21st, 2026

4 round-trip options

Returning

Mon, Dec 28, 2026•7 Day Trip

$493 USD

Returning

Tue, Dec 29, 2026•8 Day Trip

$493 USD

Returning

Wed, Dec 30, 2026•9 Day Trip

$464 USD

Returning

Mon, Jan 4, 2027•14 Day Trip

$427 USD