Cheapest return flights from Ontario to Keflavik in November from $665

AirHint found the following cheapest return flights from Ontario (ONT) to Keflavik (KEF) in November 2025 (see full year).

Return flights

13 Nov - 20 Nov British Airways
01 Nov - 06 Nov Frontier Airlines
06 Nov - 10 Nov Alaska Airlines
02 Nov - 09 Nov Frontier Airlines
12 Nov - 19 Nov Southwest Airlines
27 Nov - 04 Dec Southwest Airlines
17 Nov - 21 Nov Alaska Airlines
26 Nov - 03 Dec Alaska Airlines
01 Nov - 07 Nov Alaska Airlines
21 Nov - 29 Nov Alaska Airlines

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

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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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