Cheapest return flights from Boston to Athens in September from $539

Best time to book flights for Boston (BOS) to Athens (ATH) flights at AirHint

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

Return flights

15 Sep - 22 Sep LEVEL
22 Sep - 29 Sep LEVEL
21 Sep - 29 Sep LEVEL
15 Sep - 29 Sep LEVEL
02 Sep - 09 Sep LEVEL
03 Sep - 17 Sep LEVEL
01 Sep - 17 Sep LEVEL
03 Sep - 18 Sep LEVEL
02 Sep - 15 Sep Scandinavian Airlines
03 Sep - 10 Sep LEVEL
30 Sep - 14 Oct LEVEL
25 Sep - 06 Oct Scandinavian Airlines
25 Sep - 05 Oct Scandinavian Airlines
24 Sep - 04 Oct Fly Play
30 Sep - 14 Oct Air France direct
24 Sep - 04 Oct Air France direct

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