BWI to SFO from $217 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

$456 USD

-52%$217 USD

Verified about 5 hours ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$248 1$223 2$217 3$242 4$265 5$219 6$362 7$368 8$257 9$289 10$242 11$265 12$219 13$362 14$252 15$217 16$217 17$242 18$265 19$219 20$362 21$252 22$217 23$217 24$242 25$265 26$219 27$362 28$242 29$217 30$227 1$242 2$275 3$241 4$372

Rare Availability

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

Sunday, September 20th, 2026

8 round-trip options

Returning

Fri, Sep 25, 2026•5 Day Trip

$420 USD

Google Flights

Returning

Sun, Sep 27, 2026•7 Day Trip

$507 USD

Google Flights

Returning

Mon, Sep 28, 2026•8 Day Trip

$387 USD

Google Flights

Returning

Tue, Sep 29, 2026•9 Day Trip

$362 USD

Google Flights

Returning

Wed, Sep 30, 2026•10 Day Trip

$362 USD

Google Flights

Returning

Thu, Oct 1, 2026•11 Day Trip

$469 USD

Google Flights

Returning

Fri, Oct 2, 2026•12 Day Trip

$410 USD

Google Flights

Returning

Sat, Oct 3, 2026•13 Day Trip

$364 USD

Google Flights

Baltimore-Washington (BWI) to San Francisco (SFO) flight deal in economy from $217

Baltimore/Washington International Thurgood Marshall Ai

San Francisco International Airport

September 2026

Sunday, September 20th, 2026