Cheapest return flights from Boston to Keflavik in August from 244€

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

Return flights

20 Aug - 27 Aug Fly Play direct
18 Aug - 27 Aug Fly Play direct
27 Aug - 10 Sep Fly Play direct
22 Aug - 29 Aug Fly Play direct
24 Aug - 31 Aug Fly Play direct
27 Aug - 31 Aug Fly Play direct
17 Aug - 31 Aug Fly Play direct
22 Aug - 31 Aug Fly Play direct
15 Aug - 22 Aug Air Canada
13 Aug - 20 Aug Fly Play direct
10 Aug - 20 Aug Fly Play direct
29 Aug - 02 Sep Icelandair direct
27 Aug - 03 Sep Icelandair direct
27 Aug - 01 Sep Fly Play direct
29 Aug - 03 Sep Fly Play direct
29 Aug - 01 Sep Fly Play direct
01 Aug - 01 Sep Fly Play direct
28 Aug - 01 Sep Icelandair direct
25 Aug - 01 Sep Icelandair direct

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

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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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