Cheapest return flights from Chicago to Keflavik in August from $600

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 - 24 Aug Air Canada
15 Aug - 19 Aug United
28 Aug - 31 Aug Icelandair direct
09 Aug - 16 Aug Air Canada
02 Aug - 10 Aug United
11 Aug - 18 Aug Air Canada
15 Aug - 24 Aug Icelandair direct
10 Aug - 16 Aug Icelandair direct
09 Aug - 16 Aug Icelandair direct
11 Aug - 18 Aug 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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