Cheapest return flights from Boston to Keflavik in July from $355

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 July 2025 (see full year).

Return flights

22 Jul - 03 Aug Fly Play direct
11 Jul - 14 Jul Fly Play direct
14 Jul - 21 Jul Fly Play direct
20 Jul - 27 Jul Fly Play direct
11 Jul - 26 Jul Fly Play direct
11 Jul - 25 Jul Fly Play direct
10 Jul - 17 Jul Fly Play direct
11 Jul - 18 Jul Fly Play direct
17 Jul - 24 Jul Fly Play direct
07 Jul - 15 Jul Fly Play direct
18 Jul - 25 Jul Fly Play direct

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

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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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