PDX to BIO from $351 in economy – flightdeals.net

Home Premium Fare Deals About

Air France

Delta Air Lines

DLDelta Air Lines

KLM

One Way•Economy

Portland International Airport

Portland, United States

Bilbao Airport

$527 USD

-33%$351 USD

Verified about 12 hours ago

July 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$878 30$878 1$878 2$538 3$532 4$528 5$472 6$468 7$472 8$593 9$528 10$528 11$528 12$468 13$448 14$448 15$468 16$528 17$528 18$508 19$448 20$468 21$468 22$468 23$508 24$528 25$508 26$468 27$468 28$468 29$468 30$518 31$518 1$518 2$468

Fair Availability

31% of dates checked are available within 10% of the lowest price

Friday, July 17th, 2026

Outbound Flights

·

→

·

→

·

→