Cheapest one-way flights from Chicago to Keflavik in May from 315€

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

21 May Spirit Airlines
04 May Spirit Airlines
04 May Icelandair direct
23 May Icelandair direct
08 May Icelandair direct
21 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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