Cheapest one-way flights from Boston to Keflavik in March from 322€

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

One-Way flights

29 Mar Air France
31 Mar Air France
29 Mar Icelandair direct
31 Mar Icelandair direct
24 Mar Icelandair direct
25 Mar Icelandair direct
23 Mar Spirit Airlines
22 Mar TAP
22 Mar Icelandair direct
23 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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