Cheapest return flights from Chicago to Oslo in May from $553

Best time to book flights for Chicago (ORD) to Oslo (OSL) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Oslo (OSL) in May 2025 (see full year).

Return flights

12 May - 20 May Finnair
19 May - 24 May Spirit Airlines
11 May - 23 May British Airways
05 May - 07 May Icelandair
07 May - 14 May United
11 May - 18 May United
09 May - 16 May United
12 May - 19 May Lufthansa
13 May - 20 May Lufthansa
08 May - 15 May Lufthansa
27 May - 03 Jun Scandinavian Airlines
29 May - 05 Jun Scandinavian Airlines
13 May - 22 Jun British Airways
31 May - 07 Jun Scandinavian Airlines
25 May - 01 Jun Icelandair

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

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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.

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