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

Return flights

05 Apr - 13 Apr	Delta	direct
08 Apr - 13 Apr	Air France	direct
23 Apr - 27 Apr	Delta	direct
23 Apr - 30 Apr	Delta	direct
08 Apr - 15 Apr	Air France	direct
09 Apr - 16 Apr	Delta	direct
14 Apr - 21 Apr	Delta	direct
15 Apr - 22 Apr	Air France	direct
02 Apr - 09 Apr	Delta	direct
16 Apr - 20 Apr	Delta	direct
29 Apr - 03 May	Air France	direct
24 Apr - 04 May	Delta	direct
27 Apr - 04 May	Delta	direct
28 Apr - 05 May	Finnair
24 Apr - 01 May	Finnair
23 Apr - 01 May	Finnair
23 Apr - 01 May	Icelandair	direct
24 Apr - 01 May	Delta	direct
28 Apr - 05 May	Icelandair	direct

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

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 April from $373

Return flights