BIO to BOS from $396 in economy

AAAmerican Airlines

AYFinnair

Bilbao Airport

Bilbao, Spain

BOS

Logan International Airport

Boston, United States

$762 USD

-48%$396 USD

Verified 15 days ago

September 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$465 1$593 2$396 3$396 4$422 5$433 6$501 7$565 8$506 9$396 10$396 11$416 12$558 13$581 14$460 15$405 16$396 17$396 18$421 19$552 20$521 21$405 22$399 23$397 24$396 25$421 26$668 27$470 28$461 29$438 30$397 1$397 2$559 3$674 4$671

Rare Availability

6% of dates checked are available within 10% of the lowest price

Saturday, September 12th, 2026

7 round-trip options

Returning

Thu, Sep 17, 2026•5 Day Trip

$729 USD

Google Flights

Returning

Fri, Sep 18, 2026•6 Day Trip

$691 USD

Google Flights

Returning

Sat, Sep 19, 2026•7 Day Trip

$613 USD

Google Flights

Returning

Sun, Sep 20, 2026•8 Day Trip

$558 USD

Google Flights

Returning

Tue, Sep 22, 2026•10 Day Trip

$596 USD

Google Flights

Returning

Fri, Sep 25, 2026•13 Day Trip

$558 USD

Google Flights

Returning

Sat, Sep 26, 2026•14 Day Trip

$558 USD

Google Flights

Bilbao (BIO) to Boston (BOS) flight deal in economy from $396

Bilbao Airport

Logan International Airport

September 2026

Saturday, September 12th, 2026