Cheapest one-way flights from New York to Keflavik in October from $256

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

One-Way flights

04 Oct Spirit Airlines
01 Oct Spirit Airlines
20 Oct Spirit Airlines
06 Oct Frontier Airlines
03 Oct Spirit Airlines
23 Oct Frontier Airlines
13 Oct Spirit Airlines
17 Oct Spirit Airlines
15 Oct Spirit Airlines
14 Oct Frontier Airlines

Also check the deals for return flights from New York to Keflavik in October.

Skyscanner

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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