Cheapest return flights from Ontario to Keflavik in February from $603

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

Return flights

27 Feb - 06 Mar Frontier Airlines
15 Feb - 20 Feb Frontier Airlines
26 Feb - 03 Mar Alaska Airlines
28 Feb - 07 Mar Alaska Airlines
24 Feb - 04 Mar Southwest Airlines
18 Feb - 26 Feb Southwest Airlines
26 Feb - 06 Mar Southwest Airlines
01 Feb - 08 Feb Southwest Airlines
20 Feb - 28 Feb Southwest Airlines
23 Feb - 03 Mar Southwest Airlines
28 Feb - 08 Mar Southwest Airlines
23 Feb - 28 Feb Southwest Airlines
26 Feb - 08 Mar Southwest Airlines
16 Feb - 24 Feb Southwest Airlines
21 Feb - 01 Mar Southwest Airlines
19 Feb - 27 Feb British Airways
10 Feb - 17 Feb Alaska Airlines

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

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