Cheapest return flights from Chicago to Oslo in May from 456€

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

Return flights

06 May - 15 May Delta
15 May - 25 May Icelandair
15 May - 24 May Icelandair
02 May - 09 May Icelandair
07 May - 14 May Icelandair
12 May - 19 May Icelandair
17 May - 24 May Icelandair
03 May - 10 May British Airways
22 May - 29 May Icelandair
22 May - 31 May Icelandair
27 May - 03 Jun Icelandair
28 May - 04 Jun British Airways

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

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