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

Return flights

03 Sep - 10 Sep	Air Canada
01 Sep - 08 Sep	Air Canada
03 Sep - 17 Sep	Air Canada
02 Sep - 16 Sep	Air Canada
09 Sep - 16 Sep	Air Canada
04 Sep - 11 Sep	Air Canada
08 Sep - 17 Sep	Lufthansa
16 Sep - 24 Sep	SWISS
17 Sep - 30 Sep	Air France
10 Sep - 24 Sep	Spirit Airlines
10 Sep - 10 Oct	Delta
29 Sep - 22 Oct	United
17 Sep - 01 Oct	British Airways

Also check the deals for one-way flights from Miami to Athens in September.

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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Cheapest return flights from Miami to Athens in September from 414€

Return flights