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Portland, Oregon to Bilbao, Spain for only $459 roundtrip (Nov-Apr dates)

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Cheap flights from Portland, Oregon to Bilbao, Spain for only $459 roundtrip with Delta Air Lines, Air France and KLM.

DEPART:
Portland, USA

ARRIVE:
Bilbao, Spain

RETURN:
Portland, USA

DATES:
Availability from November 2022 to April 2023 (excluding Christmas/New Year)

Example dates:
15th-22nd Nov
22nd-29th Nov
29th Nov – 6th Dec
30th Nov – 7th Dec
6th-13th Dec
9th-16th Jan
10th-17th Jan
16th-23rd Jan
17th-24th Jan
18th-25th Jan
23rd-30th Jan
24th-31st Jan
25th Jan – 1st Feb
30th Jan – 6th Feb
31st Jan – 7th Feb
1st-8th Feb
6th-13th Feb
7th-14th Feb
8th-15th Feb
13th-20th Feb
14th-21st Feb
15th-22nd Feb
21st-28th Feb
22nd Feb – 1st Mar
6th-13th Mar
7th-14th Mar
14th-21st Mar
28th Mar – 4th Apr
29th Mar – 5th Apr

and more…

STOPS:
Various Cities

AIRLINES:
Delta Air Lines
Air France
KLM