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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
$695 USD
-39%
$425
USD
Verified Apr 8, 2026 at 9:55 AM
May 2026
Today
Mon
Tue
Wed
Thu
Fri
Sat
Sun
27
$705
28
$724
29
$724
30
$774
1
$775
2
$774
3
$724
4
$724
5
$724
6
$724
7
$774
8
$774
9
$774
10
$724
11
$780
12
$779
13
$779
14
$839
15
$840
16
$840
17
$779
18
$780
19
$779
20
$904
21
$839
22
$1,023
23
$968
24
$933
25
$933
26
$933
27
$933
28
$1,003
29
$1,003
30
$1,022
31
$933
Fair Availability
20% of dates checked are available within 10% of the lowest price
Tuesday, May 26th, 2026
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