Portland (PDX) to Bilbao (BIO) flight deal in economy from $730
$1,043 USD
-30%$730 USD
Verified 13 days agoAugust 2026
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Saturday, August 1st, 2026
7 round-trip options
Returning
Thu, Aug 6, 2026•5 Day Trip
$1,606 USD
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Fri, Aug 7, 2026•6 Day Trip
$1,606 USD
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Sun, Aug 9, 2026•8 Day Trip
$1,288 USD
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Mon, Aug 10, 2026•9 Day Trip
$1,164 USD
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Tue, Aug 11, 2026•10 Day Trip
$1,218 USD
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Fri, Aug 14, 2026•13 Day Trip
$1,488 USD
Returning
Sat, Aug 15, 2026•14 Day Trip
$1,931 USD