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

Return flights

28 Sep - 08 Oct	easyJet
27 Sep - 07 Oct	easyJet
20 Sep - 05 Oct	easyJet
28 Sep - 09 Oct	easyJet
23 Sep - 09 Oct	Ryanair
25 Sep - 30 Sep	Ryanair
23 Sep - 30 Sep	Ryanair
07 Sep - 16 Sep	KLM
24 Sep - 30 Sep	Ryanair
21 Sep - 30 Sep	easyJet
16 Sep - 30 Sep	easyJet
25 Sep - 27 Sep	Ryanair
21 Sep - 01 Oct	easyJet
23 Sep - 27 Sep	Ryanair
02 Sep - 11 Sep	KLM
23 Sep - 25 Sep	Ryanair
23 Sep - 02 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
13 Sep - 04 Oct	easyJet
14 Sep - 05 Oct	easyJet

Also check the deals for one-way flights from Bristol 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 Bristol to Athens in September from $165

Return flights