Cheapest return flights from Ontario to Keflavik in April from 655€

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

Return flights

18 Apr - 25 Apr Alaska Airlines
21 Apr - 28 Apr Alaska Airlines
20 Apr - 27 Apr Alaska Airlines
22 Apr - 29 Apr Alaska Airlines
02 Apr - 09 Apr Alaska Airlines
19 Apr - 26 Apr Alaska Airlines
26 Apr - 02 May British Airways

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

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