Cheapest return flights from Chicago to Keflavik in June from 950€

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 June 2025 (see full year).

Return flights

03 Jun - 11 Jun Frontier Airlines
18 Jun - 22 Jun Frontier Airlines
10 Jun - 17 Jun Frontier Airlines
11 Jun - 18 Jun Frontier Airlines
17 Jun - 23 Jun Frontier Airlines
10 Jun - 16 Jun Frontier Airlines
18 Jun - 23 Jun Frontier Airlines
12 Jun - 19 Jun Frontier Airlines
22 Jun - 30 Jun Air France
04 Jun - 12 Jun Delta

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

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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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