Portland (PDX) to Bilbao (BIO) flight deal in economy from $730
$1,043 USD
-30%$730 USD
Verified 13 days agoDecember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
19% of dates checked are available within 10% of the lowest price
Friday, December 18th, 2026
2 round-trip options
Returning
Sun, Dec 27, 2026•9 Day Trip
$1,534 USD
Returning
Mon, Dec 28, 2026•10 Day Trip
$1,534 USD