Cheapest return flights from Boston to Keflavik in March from 342€

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

Return flights

01 Mar - 07 Mar Icelandair direct
02 Mar - 09 Mar Icelandair direct
17 Mar - 24 Mar Icelandair direct
22 Mar - 11 Apr Icelandair direct
14 Mar - 04 Apr Icelandair direct
27 Mar - 18 Apr Icelandair direct
04 Mar - 11 Mar Icelandair direct
27 Mar - 31 Mar Icelandair direct
12 Mar - 19 Mar Icelandair direct
20 Mar - 23 Mar Icelandair direct
17 Mar - 19 Mar Icelandair direct
01 Mar - 02 Mar Icelandair direct

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

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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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