Cheapest return flights from New York to Keflavik in May from $441

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

Return flights

09 May - 17 May Air France
14 May - 20 May Air France
14 May - 21 May Delta
17 May - 24 May Air France
25 May - 01 Jun United
27 May - 31 May United
15 May - 21 May Air Canada
21 May - 25 May Porter Airlines (Canada) Ltd
22 May - 25 May Porter Airlines (Canada) Ltd
08 May - 11 May Porter Airlines (Canada) Ltd
10 May - 30 May British Airways

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

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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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