SFO to PWM from $359 in economy

UAUnited Airlines

Round Trip•Economy

SFO

San Francisco International Airport

San Francisco, United States

PWM

Portland International Jetport

Portland, United States

$555 USD

-35%$359 USD

Verified 14 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$359 1$369 2$369 3$573 4$499 5$369 6$359 7$440 8$369 9$369 10$490 11$359 12$359 13$359 14$359 15$369 16$369 17$464 18$467 19$359 20$359 21$359 22$369 23$369 24$416 25$359 26$359 27$359 28$359 29$369 30$369 1$409 2$369 3$359 4$369

Fair Availability

28% of dates checked are available within 10% of the lowest price

Tuesday, September 22nd, 2026

6 round-trip options

Returning

Mon, Sep 28, 2026•6 Day Trip

$397 USD

Google Flights

Returning

Tue, Sep 29, 2026•7 Day Trip

$369 USD

Google Flights

Returning

Thu, Oct 1, 2026•9 Day Trip

$369 USD

Google Flights

Returning

Fri, Oct 2, 2026•10 Day Trip

$369 USD

Google Flights

Returning

Mon, Oct 5, 2026•13 Day Trip

$397 USD

Google Flights

Returning

Tue, Oct 6, 2026•14 Day Trip

$369 USD

Google Flights

San Francisco (SFO) to Portland (PWM) flight deal in economy from $359

San Francisco International Airport

Portland International Jetport

September 2026

Tuesday, September 22nd, 2026