Cheapest return flights from Chicago to Keflavik in May from 607€

Best time to book flights for Chicago (ORD) to Keflavik (KEF) flights at AirHint

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

Return flights

16 May - 19 May Icelandair direct
07 May - 17 May Icelandair direct
18 May - 28 May Icelandair direct
21 May - 30 May Finnair
17 May - 28 May KLM
17 May - 28 May Icelandair direct
30 May - 11 Jun Icelandair direct
21 May - 30 May Icelandair direct
25 May - 31 May Icelandair direct

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

Skyscanner

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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