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

Return flights

04 Sep - 15 Sep	Ryanair
06 Sep - 15 Sep	Ryanair
14 Sep - 15 Sep	Ryanair
02 Sep - 15 Sep	Ryanair
04 Sep - 09 Sep	Ryanair
04 Sep - 11 Sep	Ryanair
04 Sep - 16 Sep	Ryanair
27 Sep - 07 Oct	Ryanair
04 Sep - 10 Sep	Ryanair
06 Sep - 12 Sep	Ryanair
02 Sep - 09 Sep	Ryanair
28 Sep - 07 Oct	Ryanair
29 Sep - 03 Oct	Ryanair
28 Sep - 02 Oct	Ryanair
29 Sep - 02 Oct	Ryanair

Also check the deals for one-way flights from Prestwick 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 Prestwick to Athens in September from $272

Return flights