AirHint found the following cheapest return flights from Reykjavik (REK) to Boston (BOS) in October 2025 (see full year).
Return flights
| 23 Oct - 27 Oct | Icelandair | direct | |
| 31 Oct - 03 Nov | Icelandair | ||
| 24 Oct - 31 Oct | Icelandair | direct | |
| 23 Oct - 26 Oct | Icelandair | direct |
Also check the deals for one-way flights from Reykjavik to Boston in October.
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