Cheapest one-way flights from Boston to Keflavik in October from 179€

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

One-Way flights

23 Oct Spirit Airlines
14 Oct Spirit Airlines
18 Oct Spirit Airlines
17 Oct Spirit Airlines
19 Oct Spirit Airlines
12 Oct Spirit Airlines
04 Oct Spirit Airlines
29 Oct TAP
28 Oct Aer Lingus
06 Oct TAP

Also check the deals for return flights from Boston to Keflavik in October.

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.

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