DCA to SAN from $322 in economy

UAUnited Airlines

Round Trip•Economy

DCA

Ronald Reagan Washington National Airport

Washington, United States

SAN

San Diego International Airport

San Diego, United States

$443 USD

-27%$322 USD

Verified 13 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$581 1$477 2$407 3$531 4$477 5$407 6$407 7$407 8$407 9$407 10$407 11$407 12$407 13$407 14$407 15$407 16$407 17$525 18$688 19$623 20$515 21$458 22$513 23$659 24$456 25$407 26$802 27$802 28$568 29$536 30$474 31$407 1$407 2$477 3$456

Rare Availability

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

Wednesday, December 30th, 2026

8 round-trip options

Returning

Mon, Jan 4, 2027•5 Day Trip

$474 USD

Google Flights

Returning

Thu, Jan 7, 2027•8 Day Trip

$474 USD

Google Flights

Returning

Fri, Jan 8, 2027•9 Day Trip

$474 USD

Google Flights

Returning

Sat, Jan 9, 2027•10 Day Trip

$474 USD

Google Flights

Returning

Sun, Jan 10, 2027•11 Day Trip

$474 USD

Google Flights

Returning

Mon, Jan 11, 2027•12 Day Trip

$474 USD

Google Flights

Returning

Tue, Jan 12, 2027•13 Day Trip

$474 USD

Google Flights

Returning

Wed, Jan 13, 2027•14 Day Trip

$474 USD

Google Flights

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

Ronald Reagan Washington National Airport

San Diego International Airport

December 2026

Wednesday, December 30th, 2026