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

Return flights

13 Jan - 20 Jan	Scandinavian Airlines
13 Jan - 18 Jan	Scandinavian Airlines
25 Jan - 01 Feb	Scandinavian Airlines
06 Jan - 13 Jan	Scandinavian Airlines
09 Jan - 11 Jan	Scandinavian Airlines
06 Jan - 09 Jan	Scandinavian Airlines
08 Jan - 15 Jan	Air Canada
12 Jan - 19 Jan	Virgin Atlantic
05 Jan - 12 Jan	Scandinavian Airlines
11 Jan - 18 Jan	Scandinavian Airlines
21 Jan - 28 Jan	Virgin Atlantic

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 492€

Return flights