IAD to SAN from $307 in economy

UAUnited Airlines

Round Trip•Economy

IAD

Washington Dulles International Airport

Washington, United States

SAN

San Diego International Airport

San Diego, United States

$420 USD

-27%$307 USD

Verified 13 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$347 1$307 2$307 3$357 4$347 5$307 6$347 7$347 8$307 9$307 10$347 11$347 12$307 13$347 14$347 15$307 16$307 17$347 18$347 19$307 20$347 21$347 22$307 23$307 24$347 25$347 26$307 27$347 28$347 29$307 30$307 1$347 2$347 3$307 4$347

Rare Availability

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

Friday, September 4th, 2026

7 round-trip options

Returning

Wed, Sep 9, 2026•5 Day Trip

$347 USD

Google Flights

Returning

Fri, Sep 11, 2026•7 Day Trip

$387 USD

Google Flights

Returning

Sat, Sep 12, 2026•8 Day Trip

$347 USD

Google Flights

Returning

Sun, Sep 13, 2026•9 Day Trip

$387 USD

Google Flights

Returning

Tue, Sep 15, 2026•11 Day Trip

$347 USD

Google Flights

Returning

Thu, Sep 17, 2026•13 Day Trip

$387 USD

Google Flights

Returning

Fri, Sep 18, 2026•14 Day Trip

$387 USD

Google Flights

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

Washington Dulles International Airport

San Diego International Airport

September 2026

Friday, September 4th, 2026