Cheapest return flights from Chicago to Keflavik in March from 871€

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

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

Return flights

20 Mar - 27 Mar Porter Airlines (Canada) Ltd
26 Mar - 02 Apr Porter Airlines (Canada) Ltd
18 Mar - 25 Mar Porter Airlines (Canada) Ltd
21 Mar - 28 Mar Porter Airlines (Canada) Ltd
30 Mar - 03 Apr Delta
31 Mar - 03 Apr Delta

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

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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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