Cheapest return flights from Boston to Keflavik in August from $496

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

Return flights

20 Aug - 26 Aug Icelandair direct
11 Aug - 05 Sep Icelandair direct
11 Aug - 16 Aug Icelandair direct
01 Aug - 15 Aug Icelandair direct
03 Aug - 09 Aug Icelandair direct
08 Aug - 16 Aug 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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