BWI to SFO from $317 in economy

UAUnited Airlines

Round Trip•Economy

BWI

Baltimore/Washington International Thurgood Marshall Ai

Baltimore-Washington, United States

SFO

San Francisco International Airport

San Francisco, United States

$465 USD

-32%$317 USD

Verified about 19 hours ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$668 1$467 2$360 3$317 4$382 5$317 6$417 7$317 8$317 9$317 10$317 11$382 12$317 13$427 14$382 15$412 16$327 17$431 18$504 19$507 20$417 21$477 22$474 23$535 24$400 25$392 26$545 27$672 28$499 29$481 30$427 31$346 1$474 2$580 3$534

Fair Availability

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

Sunday, December 20th, 2026

6 round-trip options

Returning

Fri, Dec 25, 2026•5 Day Trip

$482 USD

Google Flights

Returning

Sat, Dec 26, 2026•6 Day Trip

$502 USD

Google Flights

Returning

Sun, Dec 27, 2026•7 Day Trip

$517 USD

Google Flights

Returning

Thu, Dec 31, 2026•11 Day Trip

$417 USD

Google Flights

Returning

Fri, Jan 1, 2027•12 Day Trip

$482 USD

Google Flights

Returning

Sat, Jan 2, 2027•13 Day Trip

$582 USD

Google Flights

Baltimore-Washington (BWI) to San Francisco (SFO) flight deal in economy from $317

Baltimore/Washington International Thurgood Marshall Ai

San Francisco International Airport

December 2026

Sunday, December 20th, 2026