Cheapest one-way flights from Boston to Keflavik in March from 218€

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

One-Way flights

25 Mar Spirit Airlines
16 Mar Air France
25 Mar Icelandair direct
30 Mar Icelandair direct
08 Mar Icelandair direct
02 Mar Icelandair direct
27 Mar Icelandair direct
10 Mar Icelandair direct
16 Mar Icelandair direct

Also check the deals for return 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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