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 July , August 2026

31 Jul - 26 Aug $ 1,244.00
CHI
Chicago
JetBlue Airways
3 STOPS
OUL
Oulu
OUL
Oulu
JetBlue Airways
3 STOPS
CHI
Chicago
Pick dates
31 Jul - 26 Aug $ 1,315.00
CHI
Chicago
JetBlue Airways
3 STOPS
OUL
Oulu
OUL
Oulu
JetBlue Airways
3 STOPS
CHI
Chicago
Pick dates
31 Jul - 26 Aug $ 1,323.00
CHI
Chicago
JetBlue Airways
3 STOPS
OUL
Oulu
OUL
Oulu
JetBlue Airways
3 STOPS
CHI
Chicago
Pick dates

Last minute flights from Chicago to Oulu

24 Jul - 31 Jul $ 1,942.00
CHI
Chicago
Finnair
1 STOPS
OUL
Oulu
OUL
Oulu
Finnair
1 STOPS
CHI
Chicago
Pick dates
24 Jul - 31 Jul $ 1,981.00
CHI
Chicago
Finnair
1 STOPS
OUL
Oulu
OUL
Oulu
Finnair
1 STOPS
CHI
Chicago
Pick dates
24 Jul - 31 Jul $ 2,029.00
CHI
Chicago
Finnair
1 STOPS
OUL
Oulu
OUL
Oulu
Finnair
1 STOPS
CHI
Chicago
Pick dates

One-way flights to Oulu from Chicago

9:42 AM - 11:55 PM
Finnair
3 Stops
31h 18m
CHI - OUL
$ 660
Kiwi
Pick dates
7:25 PM - 11:55 PM
Finnair
3 Stops
21h 35m
CHI - OUL
$ 741
Kiwi
Pick dates
7:25 PM - 8:30 PM
Finnair
3 Stops
18h 10m
CHI - OUL
$ 749
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.