AirHint found the following cheapest return flights from Boston (BOS) to Stockholm (ARN) in December 2025 (see full year).
Return flights
| 15 Dec - 10 Jan | Icelandair | ||
| 19 Dec - 10 Jan | Icelandair | ||
| 18 Dec - 10 Jan | TAP | ||
| 20 Dec - 10 Jan | Icelandair | ||
| 19 Dec - 04 Jan | Icelandair |
Also check the deals for one-way flights from Boston to Stockholm in December.
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