SAN to IAD from $307 in economy

UAUnited Airlines

Round Trip•Economy

SAN

San Diego International Airport

San Diego, United States

IAD

Washington Dulles International Airport

Washington, United States

$418 USD

-27%$307 USD

Verified 13 days ago

July 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30 1 2 3 4 5$802 6$719 7$705 8$702 9$668 10$714 11$629 12$622 13$600 14$575 15$552 16$552 17$575 18$552 19$460 20$480 21$457 22$457 23$457 24$467 25$453 26$513 27$397 28$387 29$387 30$387 31$387 1$387 2$366

Rare Availability

7% of dates checked are available within 10% of the lowest price

Wednesday, July 22nd, 2026

7 round-trip options

Returning

Mon, Jul 27, 2026•5 Day Trip

$464 USD

Google Flights

Returning

Tue, Jul 28, 2026•6 Day Trip

$457 USD

Google Flights

Returning

Wed, Jul 29, 2026•7 Day Trip

$505 USD

Google Flights

Returning

Fri, Jul 31, 2026•9 Day Trip

$525 USD

Google Flights

Returning

Sat, Aug 1, 2026•10 Day Trip

$485 USD

Google Flights

Returning

Mon, Aug 3, 2026•12 Day Trip

$505 USD

Google Flights

Returning

Tue, Aug 4, 2026•13 Day Trip

$457 USD

Google Flights

San Diego (SAN) to Washington (IAD) flight deal in economy from $307

San Diego International Airport

Washington Dulles International Airport

July 2026

Wednesday, July 22nd, 2026