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AF
Air France
DL
Delta Air Lines
KL
KLM
One Way
•
Economy
PDX
Portland International Airport
Portland, United States
BIO
Bilbao Airport
Bilbao, Spain
$773 USD
-55%
$350
USD
Verified Mar 22, 2026 at 7:46 PM
April 2026
Today
Mon
Tue
Wed
Thu
Fri
Sat
Sun
30
$699
31
$699
1
$699
2
$759
3
$759
4
$759
5
$699
6
$699
7
$699
8
$649
9
$724
10
$724
11
$724
12
$674
13
$649
14
$649
15
$674
16
$699
17
$699
18
$724
19
$649
20
$649
21
$649
22
$649
23
$699
24
$724
25
$724
26
$649
27
$649
28
$649
29
$674
30
$699
1
2
3
Extremely Rare Availability
2% of dates checked are available within 10% of the lowest price
Monday, April 6th, 2026
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