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

Return flights

27 Jan - 31 Jan	Scandinavian Airlines
09 Jan - 13 Jan	Scandinavian Airlines
02 Jan - 07 Jan	Scandinavian Airlines
10 Jan - 18 Jan	Scandinavian Airlines
14 Jan - 19 Jan	Spirit Airlines
02 Jan - 04 Jan	Porter Airlines (Canada) Ltd

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

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 January from 481€

Return flights