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AC
Air Canada
LH
Lufthansa
LX
Swiss International Air Lines
OS
Austrian Airlines
UA
United Airlines
One Way
•
Economy
SFO
San Francisco International Airport
San Francisco, United States
BIO
Bilbao Airport
Bilbao, Spain
$582 USD
-23%
$449
USD
Verified Nov 25, 2025 at 8:18 PM
February 2026
Today
Mon
Tue
Wed
Thu
Fri
Sat
Sun
26
$453
27
$449
28
$450
29
$499
30
$499
31
$465
1
$449
2
$450
3
$449
4
$449
5
$499
6
$499
7
$465
8
$449
9
$450
10
$449
11
$449
12
$499
13
$503
14
$465
15
$449
16
$449
17
$449
18
$449
19
$499
20
$499
21
$465
22
$449
23
$449
24
$449
25
$449
26
$499
27
$499
28
$465
1
Fair Availability
32% of dates checked are available within 10% of the lowest price
Wednesday, February 11th, 2026
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