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
Sunday, August 23rd, 2026
7 round-trip options
Returning
Fri, Aug 28, 2026•5 Day Trip
$1,436 USD
Returning
Sat, Aug 29, 2026•6 Day Trip
$910 USD
Returning
Mon, Aug 31, 2026•8 Day Trip
$910 USD
Returning
Tue, Sep 1, 2026•9 Day Trip
$860 USD
Returning
Wed, Sep 2, 2026•10 Day Trip
$850 USD
Returning
Sat, Sep 5, 2026•13 Day Trip
$870 USD
Returning
Sun, Sep 6, 2026•14 Day Trip
$887 USD