Cheapest return flights from Chicago to Keflavik in August from $625

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

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

Return flights

15 Aug - 22 Aug Air Canada
14 Aug - 25 Aug Icelandair direct
15 Aug - 25 Aug Icelandair direct
15 Aug - 26 Aug Icelandair direct
21 Aug - 26 Aug Icelandair direct
17 Aug - 28 Aug Icelandair direct
17 Aug - 25 Aug Icelandair direct
15 Aug - 22 Aug Icelandair direct
26 Aug - 02 Sep Icelandair direct
09 Aug - 16 Aug Air Canada
12 Aug - 19 Aug Air Canada
22 Aug - 06 Sep Icelandair direct
18 Aug - 02 Sep Icelandair direct
30 Aug - 05 Sep Icelandair direct
29 Aug - 04 Sep Icelandair direct
28 Aug - 03 Sep Icelandair direct

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

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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