Cheapest return flights from Boston to Copenhagen in September from $283

Best time to book flights for Boston (BOS) to Copenhagen (CPH) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Copenhagen (CPH) in September 2025 (see full year).

Return flights

05 Sep - 09 Sep Fly Play
12 Sep - 26 Sep Fly Play
09 Sep - 23 Sep Fly Play
29 Sep - 05 Oct Fly Play
13 Sep - 27 Sep Fly Play
03 Sep - 10 Sep Scandinavian Airlines direct
09 Sep - 23 Sep Scandinavian Airlines direct
29 Sep - 05 Oct Scandinavian Airlines direct
13 Sep - 27 Sep Scandinavian Airlines direct
24 Sep - 01 Oct Scandinavian Airlines
12 Sep - 26 Sep Scandinavian Airlines direct
05 Sep - 09 Sep Scandinavian Airlines direct

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

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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