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
Thursday, August 6th, 2026
7 round-trip options
Returning
Tue, Aug 11, 2026•5 Day Trip
$1,031 USD
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Wed, Aug 12, 2026•6 Day Trip
$1,031 USD
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Fri, Aug 14, 2026•8 Day Trip
$1,262 USD
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Sat, Aug 15, 2026•9 Day Trip
$1,646 USD
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Sun, Aug 16, 2026•10 Day Trip
$1,384 USD
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Wed, Aug 19, 2026•13 Day Trip
$1,020 USD
Returning
Thu, Aug 20, 2026•14 Day Trip
$1,027 USD