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
Friday, December 4th, 2026
2 round-trip options
Returning
Sun, Dec 13, 2026•9 Day Trip
$847 USD
Returning
Mon, Dec 14, 2026•10 Day Trip
$847 USD