Cheapest return BOS–ARN flights, September

AirHint found the following cheapest return flights from Boston (BOS) to Stockholm (ARN) in September 2026 (see full year).

Return flights

08 Sep - 15 Sep KLM
14 Sep - 21 Sep KLM
15 Sep - 22 Sep KLM
21 Sep - 28 Sep KLM
22 Sep - 29 Sep KLM
29 Sep - 06 Oct KLM
30 Sep - 07 Oct Icelandair
07 Sep - 14 Sep Air France
28 Sep - 05 Oct Air France
13 Sep - 20 Sep Scandinavian Airlines
06 Sep - 13 Sep Scandinavian Airlines
20 Sep - 27 Sep Scandinavian Airlines
27 Sep - 04 Oct Scandinavian Airlines
23 Sep - 30 Sep KLM
24 Sep - 01 Oct Icelandair
25 Sep - 02 Oct Icelandair
26 Sep - 03 Oct Icelandair

Also check the deals for one-way flights from Boston to Stockholm in September.

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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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