Cheapest return flights from Boston to Keflavik in April from $365

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

Return flights

12 Apr - 18 Apr Icelandair direct
11 Apr - 18 Apr Icelandair direct
22 Apr - 29 Apr Icelandair direct
19 Apr - 23 Apr Icelandair direct
21 Apr - 30 Apr Air France
22 Apr - 27 Apr Air France
08 Apr - 15 Apr KLM
22 Apr - 26 Apr Air France
21 Apr - 30 Apr Icelandair direct
08 Apr - 15 Apr Icelandair direct
25 Apr - 01 May Icelandair direct
25 Apr - 02 May Icelandair direct
22 Apr - 02 May Icelandair direct
24 Apr - 01 May Icelandair direct
29 Apr - 03 May Icelandair direct
28 Apr - 05 May Icelandair direct

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

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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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