Portland (PDX) to Bilbao (BIO) flight deal in economy from $730
$1,043 USD
-30%$730 USD
Verified 13 days agoDecember 2026
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Wednesday, December 9th, 2026
2 round-trip options
Returning
Fri, Dec 18, 2026•9 Day Trip
$900 USD
Returning
Sat, Dec 19, 2026•10 Day Trip
$1,170 USD