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
Tuesday, August 4th, 2026
7 round-trip options
Returning
Sun, Aug 9, 2026•5 Day Trip
$1,070 USD
Returning
Mon, Aug 10, 2026•6 Day Trip
$957 USD
Returning
Wed, Aug 12, 2026•8 Day Trip
$894 USD
Returning
Thu, Aug 13, 2026•9 Day Trip
$887 USD
Returning
Fri, Aug 14, 2026•10 Day Trip
$1,270 USD
Returning
Mon, Aug 17, 2026•13 Day Trip
$1,177 USD
Returning
Tue, Aug 18, 2026•14 Day Trip
$1,124 USD