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Cheap flights from Chicago (CHI) to Oulu (OUL)

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1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
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How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)

How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)
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How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)
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How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)
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Cheap flights from Chicago to Oulu in March , April 2026

30 Mar - 29 Apr $ 702.00
CHI
Chicago
SAS
2 STOPS
OUL
Oulu
OUL
Oulu
SAS
2 STOPS
CHI
Chicago
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30 Mar - 29 Apr $ 721.00
CHI
Chicago
SAS
2 STOPS
OUL
Oulu
OUL
Oulu
SAS
2 STOPS
CHI
Chicago
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30 Mar - 20 Apr $ 753.00
CHI
Chicago
SAS
2 STOPS
OUL
Oulu
OUL
Oulu
SAS
2 STOPS
CHI
Chicago
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Last minute flights from Chicago to Oulu

23 Mar - 01 Apr $ 1,073.00
CHI
Chicago
Air Serbia
3 STOPS
OUL
Oulu
OUL
Oulu
Air Serbia
3 STOPS
CHI
Chicago
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29 Mar - 01 Apr $ 1,081.00
CHI
Chicago
Air Serbia
3 STOPS
OUL
Oulu
OUL
Oulu
Air Serbia
3 STOPS
CHI
Chicago
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24 Mar - 31 Mar $ 1,234.00
CHI
Chicago
Lufthansa
2 STOPS
OUL
Oulu
OUL
Oulu
Lufthansa
2 STOPS
CHI
Chicago
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One-way flights to Oulu from Chicago

7:25 PM - 10:50 PM
Finnair
3 Stops
20h 25m
CHI - OUL
$ 371
Kiwi
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7:25 PM - 8:30 PM
Finnair
3 Stops
18h 10m
CHI - OUL
$ 379
Kiwi
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7:25 PM - 11:45 PM
airBaltic
3 Stops
22h
CHI - OUL
$ 421
Kiwi
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How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)

Related info for your journey
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How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.