Earn point on your loyalty program!arrow arc left

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

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)

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.
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.

Cheap flights from Chicago to Oulu in October , November 2026

31 Oct - 03 Nov $ 1,108.00
CHI
Chicago
SAS
2 STOPS
OUL
Oulu
OUL
Oulu
SAS
2 STOPS
CHI
Chicago
Pick dates
30 Oct - 21 Nov $ 1,247.00
CHI
Chicago
Icelandair
2 STOPS
OUL
Oulu
OUL
Oulu
Icelandair
2 STOPS
CHI
Chicago
Pick dates
29 Oct - 06 Nov $ 1,257.00
CHI
Chicago
Icelandair
2 STOPS
OUL
Oulu
OUL
Oulu
Icelandair
2 STOPS
CHI
Chicago
Pick dates

Last minute flights from Chicago to Oulu

26 Oct - 01 Nov $ 1,082.00
CHI
Chicago
Icelandair
3 STOPS
OUL
Oulu
OUL
Oulu
Icelandair
3 STOPS
CHI
Chicago
Pick dates
26 Oct - 01 Nov $ 1,093.00
CHI
Chicago
Icelandair
3 STOPS
OUL
Oulu
OUL
Oulu
Icelandair
3 STOPS
CHI
Chicago
Pick dates
27 Oct - 01 Nov $ 1,123.00
CHI
Chicago
Icelandair
3 STOPS
OUL
Oulu
OUL
Oulu
Icelandair
3 STOPS
CHI
Chicago
Pick dates

One-way flights to Oulu from Chicago

7:30 PM - 12:30 PM
Finnair
3 Stops
35h 10m
CHI - OUL
$ 430
Kiwi
Pick dates
7:30 PM - 12:30 PM
Finnair
3 Stops
35h 10m
CHI - OUL
$ 460
Kiwi
Pick dates
7:30 PM - 12:30 PM
Finnair
3 Stops
35h 10m
CHI - OUL
$ 467
Kiwi
Pick dates

How to find the cheapest flight from Chicago (CHI) to Oulu (OUL)

Related info for your journey
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.
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.