Cheapest return flights from Oslo to Chicago in May from $441

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

Return flights

16 May - 23 May British Airways
27 May - 03 Jun British Airways
28 May - 04 Jun British Airways
22 May - 29 May Icelandair
19 May - 26 May Icelandair
23 May - 30 May Icelandair
17 May - 24 May Icelandair
01 May - 08 May Icelandair
06 May - 13 May Icelandair
08 May - 15 May Icelandair
12 May - 19 May Icelandair
13 May - 20 May Icelandair
26 May - 02 Jun Icelandair
29 May - 05 Jun Finnair
31 May - 07 Jun Icelandair
25 May - 01 Jun Icelandair
30 May - 06 Jun Finnair

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