Cheapest return flights from Boston to Keflavik in August from 291€

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 August 2025 (see full year).

Return flights

24 Aug - 08 Sep Fly Play direct
26 Aug - 10 Sep Fly Play direct
27 Aug - 11 Sep Fly Play direct
25 Aug - 09 Sep Fly Play direct
31 Aug - 15 Sep Fly Play direct
28 Aug - 12 Sep Fly Play direct
21 Aug - 05 Sep Fly Play direct
30 Aug - 14 Sep Fly Play direct
29 Aug - 13 Sep Fly Play direct
31 Aug - 08 Sep Fly Play direct
04 Aug - 12 Aug Fly Play direct
06 Aug - 14 Aug Fly Play direct
05 Aug - 13 Aug Fly Play direct
19 Aug - 27 Aug Fly Play direct
21 Aug - 29 Aug Fly Play direct
18 Aug - 26 Aug Fly Play direct
11 Aug - 26 Aug Fly Play direct
06 Aug - 11 Aug Fly Play direct
11 Aug - 25 Aug Fly Play direct
23 Aug - 31 Aug Fly Play direct

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

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik