AirHint found the following cheapest return flights from New York (NYC) to Keflavik (KEF) in October 2026 (see full year).

Return flights

12 Oct - 18 Oct	Air Canada
23 Oct - 02 Nov	Finnair
01 Oct - 06 Oct	Air Canada
10 Oct - 18 Oct	Finnair
15 Oct - 26 Oct	Finnair
07 Oct - 14 Oct	Finnair
10 Oct - 18 Oct	Icelandair	direct
15 Oct - 26 Oct	Icelandair	direct
01 Oct - 06 Oct	Icelandair	direct
12 Oct - 18 Oct	Icelandair	direct
23 Oct - 02 Nov	Icelandair	direct
31 Oct - 11 Nov	Icelandair	direct
02 Oct - 09 Oct	Icelandair	direct

Also check the deals for one-way flights from New York to Keflavik in October.

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 New York to Keflavik in October from $422

Return flights