Cheapest return flights from Boston to Keflavik in March from $263

Best time to book flights for Boston (BOS) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Keflavik (KEF) in March 2025 (see full year).

Return flights

05 Mar - 18 Mar Fly Play direct
01 Mar - 10 Mar Fly Play direct
16 Mar - 25 Mar Fly Play direct
22 Mar - 31 Mar Fly Play direct
18 Mar - 25 Mar Fly Play direct
17 Mar - 31 Mar Fly Play direct
09 Mar - 18 Mar Fly Play direct
06 Mar - 10 Mar Fly Play direct
21 Mar - 31 Mar Fly Play direct
27 Mar - 31 Mar Fly Play direct
25 Mar - 01 Apr Fly Play direct
27 Mar - 03 Apr Fly Play direct
26 Mar - 02 Apr Fly Play direct
28 Mar - 04 Apr Fly Play direct
29 Mar - 06 Apr Fly Play 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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