Cheapest return flights from Ontario to Keflavik in June from 582€

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

Return flights

01 Jun - 08 Jun Alaska Airlines
03 Jun - 10 Jun Alaska Airlines
04 Jun - 11 Jun Alaska Airlines
30 Jun - 07 Jul Alaska Airlines
24 Jun - 01 Jul Alaska Airlines
27 Jun - 04 Jul Alaska Airlines
29 Jun - 06 Jul Alaska Airlines
10 Jun - 17 Jun Alaska Airlines
17 Jun - 24 Jun Alaska Airlines
16 Jun - 23 Jun Alaska Airlines
07 Jun - 14 Jun Alaska Airlines
09 Jun - 16 Jun Alaska Airlines
25 Jun - 02 Jul Alaska Airlines
13 Jun - 20 Jun Alaska Airlines
12 Jun - 19 Jun Alaska Airlines
28 Jun - 05 Jul Alaska Airlines
26 Jun - 03 Jul Alaska Airlines

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

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