Cheapest return flights from Oslo to Boston in September from $443

Best time to book flights for Oslo (OSL) to Boston (BOS) flights at AirHint

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

Return flights

21 Sep - 28 Sep British Airways
06 Sep - 13 Sep British Airways
07 Sep - 14 Sep British Airways
25 Sep - 02 Oct British Airways
11 Sep - 15 Sep Delta
28 Sep - 05 Oct Icelandair
29 Sep - 06 Oct Icelandair
27 Sep - 02 Oct British Airways
15 Sep - 22 Sep British Airways
10 Sep - 17 Sep British Airways
11 Sep - 18 Sep British Airways
03 Sep - 10 Sep British Airways
23 Sep - 30 Sep British Airways
08 Sep - 15 Sep British Airways
26 Sep - 03 Oct British Airways
27 Sep - 04 Oct British Airways
26 Sep - 01 Oct British Airways
27 Sep - 01 Oct British Airways

Also check the deals for one-way flights from Oslo to Boston 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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