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 13 days ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$810 6$809 7$762 8$737 9$771 10$739 11$716 12$700 13$654 14$654 15$590 16$637 17$629 18$574 19$484 20$484 21$484 22$484 23$484 24$490 25$532 26$464 27$426 28$426 29$426 30$415 31$416 1$453 2$416

Fair Availability

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

Thursday, July 23rd, 2026

4 round-trip options

Returning

Tue, Jul 28, 2026•5 Day Trip

$484 USD

Returning

Thu, Jul 30, 2026•7 Day Trip

$490 USD

Returning

Sat, Aug 1, 2026•9 Day Trip

$590 USD

Returning

Mon, Aug 3, 2026•11 Day Trip

$490 USD