Cheapest return flights from Chicago to Oslo in September from 418€

AirHint found the following cheapest return flights from Chicago (ORD) to Oslo (OSL) in September 2026 (see full year).

Return flights

28 Sep - 05 Oct Icelandair
18 Sep - 25 Sep Icelandair
16 Sep - 23 Sep Icelandair
17 Sep - 24 Sep Icelandair
23 Sep - 30 Sep Icelandair
24 Sep - 01 Oct Icelandair
20 Sep - 27 Sep Icelandair
09 Sep - 16 Sep Icelandair
13 Sep - 20 Sep Icelandair
14 Sep - 21 Sep Scandinavian Airlines
07 Sep - 14 Sep Scandinavian Airlines
21 Sep - 28 Sep Scandinavian Airlines
25 Sep - 02 Oct Icelandair
29 Sep - 06 Oct Icelandair
20 Sep - 04 Oct Air France
30 Sep - 07 Oct Iberia
27 Sep - 04 Oct Icelandair
26 Sep - 03 Oct Icelandair

Also check the deals for one-way flights from Chicago to Oslo in September.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Oslo

Cheap car rent in Oslo

Feel free to contact us with any feedback or request another flight research.