Cheapest return flights from Boston to Keflavik in March from 390€

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

Return flights

10 Mar - 14 Mar Icelandair direct
10 Mar - 17 Mar Icelandair direct
16 Mar - 24 Mar United
17 Mar - 25 Mar United
12 Mar - 20 Mar United
20 Mar - 28 Mar United
19 Mar - 27 Mar United
08 Mar - 14 Mar United
07 Mar - 15 Mar United

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

Skyscanner

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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