Cheapest return flights from Keflavik to Boston in August from $305

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

Return flights

04 Aug - 10 Aug Fly Play direct
01 Aug - 04 Aug Fly Play direct
20 Aug - 27 Aug Fly Play direct
08 Aug - 10 Aug Fly Play direct
29 Aug - 31 Aug Fly Play direct
10 Aug - 15 Aug Fly Play direct
15 Aug - 27 Aug Fly Play direct
20 Aug - 31 Aug Fly Play direct
11 Aug - 19 Aug Icelandair direct

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

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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