Cheapest return flights from Boston to Keflavik in October from $325

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

Return flights

18 Oct - 22 Oct Icelandair direct
24 Oct - 31 Oct Icelandair direct
28 Oct - 04 Nov Icelandair direct
24 Oct - 30 Oct Icelandair direct
20 Oct - 15 Nov Icelandair direct
18 Oct - 08 Nov Icelandair direct
18 Oct - 24 Oct Icelandair direct
24 Oct - 04 Nov Icelandair direct
21 Oct - 15 Nov Icelandair direct
19 Oct - 22 Oct Icelandair direct
18 Oct - 20 Oct Icelandair direct
19 Oct - 23 Oct Icelandair direct
19 Oct - 08 Nov Icelandair direct
22 Oct - 15 Nov Icelandair direct
28 Oct - 02 Nov Icelandair direct
28 Oct - 08 Nov Icelandair direct
30 Oct - 22 Nov Icelandair direct
25 Oct - 30 Oct Icelandair direct
22 Oct - 26 Oct Icelandair direct
19 Oct - 26 Oct Icelandair direct

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

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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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