SAN to DCA from $322 in economy

UAUnited Airlines

Round Trip•Economy

SAN

San Diego International Airport

San Diego, United States

DCA

Ronald Reagan Washington National Airport

Washington, United States

$443 USD

-27%$322 USD

Verified 14 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$367 1$327 2$327 3$367 4$367 5$327 6$367 7$367 8$327 9$327 10$367 11$367 12$327 13$367 14$367 15$327 16$327 17$367 18$367 19$327 20$367 21$367 22$327 23$327 24$367 25$367 26$327 27$367 28$367 29$327 30$327 1$367 2$367 3$327 4$367

Rare Availability

5% of dates checked are available within 10% of the lowest price

Friday, September 18th, 2026

7 round-trip options

Returning

Wed, Sep 23, 2026•5 Day Trip

$367 USD

Google Flights

Returning

Sat, Sep 26, 2026•8 Day Trip

$367 USD

Google Flights

Returning

Sun, Sep 27, 2026•9 Day Trip

$407 USD

Google Flights

Returning

Mon, Sep 28, 2026•10 Day Trip

$407 USD

Google Flights

Returning

Tue, Sep 29, 2026•11 Day Trip

$367 USD

Google Flights

Returning

Wed, Sep 30, 2026•12 Day Trip

$367 USD

Google Flights

Returning

Fri, Oct 2, 2026•14 Day Trip

$407 USD

Google Flights

San Diego (SAN) to Washington (DCA) flight deal in economy from $322

San Diego International Airport

Ronald Reagan Washington National Airport

September 2026

Friday, September 18th, 2026