Cheapest return flights from Chicago to Oslo in May from $454

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

Return flights

08 May - 30 May Icelandair
02 May - 23 May Icelandair
09 May - 30 May Icelandair
01 May - 08 May British Airways
18 May - 25 May Icelandair
12 May - 19 May British Airways
10 May - 18 May Lufthansa
14 May - 21 May British Airways
19 May - 26 May British Airways
15 May - 14 Jun Iberia
10 May - 17 May British Airways
25 May - 01 Jun British Airways
26 May - 02 Jun British Airways
27 May - 03 Jun British Airways
28 May - 04 Jun British Airways
30 May - 06 Jun British Airways
31 May - 07 Jun British Airways
29 May - 05 Jun British Airways

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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