Cheapest one-way flights from Chicago to Keflavik in May from $227

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

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

One-Way flights

06 May Spirit Airlines
01 May Spirit Airlines
19 May Spirit Airlines
20 May Spirit Airlines
17 May Spirit Airlines
16 May Spirit Airlines
01 May Icelandair direct
16 May Icelandair direct
24 May Icelandair direct
20 May Icelandair direct

Also check the deals for return 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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