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

Return flights

01 Jun - 08 Jun	Air Canada
13 Jun - 20 Jun	United
12 Jun - 20 Jun	Air Canada
19 Jun - 24 Jun	Porter Airlines (Canada) Ltd
24 Jun - 02 Jul	Air Canada
06 Jun - 19 Jun	Air Canada
04 Jun - 27 Jun	Porter Airlines (Canada) Ltd
10 Jun - 04 Jul	Porter Airlines (Canada) Ltd
05 Jun - 19 Jun	Air Canada
19 Jun - 11 Jul	Air Canada
20 Jun - 11 Jul	Air Canada
30 Jun - 25 Jul	Porter Airlines (Canada) Ltd
02 Jun - 10 Jun	British Airways
03 Jun - 10 Jun	British Airways

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

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 June from $645

Return flights