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

Return flights

01 Apr - 25 Apr	Icelandair
02 Apr - 25 Apr	Icelandair
03 Apr - 25 Apr	Icelandair
04 Apr - 25 Apr	Icelandair
05 Apr - 25 Apr	Icelandair
23 Apr - 29 Apr	Icelandair
11 Apr - 18 Apr	Icelandair
04 Apr - 11 Apr	Icelandair
14 Apr - 21 Apr	Icelandair
30 Apr - 05 May	United
06 Apr - 02 May	Air France
07 Apr - 02 May	Air France
08 Apr - 02 May	United
09 Apr - 02 May	United
10 Apr - 02 May	Air France
12 Apr - 02 May	Air France
13 Apr - 09 May	Air France
14 Apr - 09 May	Air France
15 Apr - 09 May	United

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

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

Cheapest return flights from Chicago to Oslo in April from 399€

Return flights