Cheapest return flights from Chicago to Keflavik in April from $807

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 April 2025 (see full year).

Return flights

14 Apr - 23 Apr Delta
14 Apr - 28 Apr Delta
11 Apr - 17 Apr Frontier Airlines
07 Apr - 11 Apr Frontier Airlines
07 Apr - 12 Apr Frontier Airlines
16 Apr - 21 Apr Frontier Airlines
19 Apr - 27 Apr Virgin Atlantic
12 Apr - 19 Apr Porter Airlines (Canada) Ltd
07 Apr - 16 Apr Porter Airlines (Canada) Ltd
08 Apr - 17 Apr Porter Airlines (Canada) Ltd

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

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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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