AirHint found the following cheapest return flights from Chicago (ORD) to Keflavik (KEF) in June 2026 (see full year).

Return flights

09 Jun - 16 Jun	Icelandair	direct
12 Jun - 19 Jun	Icelandair	direct
05 Jun - 12 Jun	Icelandair	direct
10 Jun - 17 Jun	Icelandair	direct
08 Jun - 15 Jun	Icelandair	direct
07 Jun - 14 Jun	Icelandair	direct
09 Jun - 17 Jun	Air Canada
01 Jun - 12 Jun	Finnair
09 Jun - 17 Jun	Icelandair	direct
01 Jun - 12 Jun	Icelandair	direct
23 Jun - 18 Jul	United
29 Jun - 12 Jul	Air Canada
23 Jun - 18 Jul	Icelandair	direct
29 Jun - 12 Jul	United	direct

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

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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Cheapest return flights from Chicago to Keflavik in June from 508€

Return flights