AirHint found the following cheapest one-way flights from New York (LGA) to Keflavik (KEF) in October 2025 (see full year).

One-Way flights

08 Oct	Spirit Airlines
15 Oct	Spirit Airlines
13 Oct	Air Canada
12 Oct	Air Canada
14 Oct	Spirit Airlines
29 Oct	Lufthansa
22 Oct	United
19 Oct	British Airways
07 Oct	Spirit Airlines
05 Oct	Porter Airlines (Canada) Ltd

Also check the deals for return 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 one-way flights from New York to Keflavik in October from $294

One-Way flights