AirHint found the following cheapest return flights from London (STN) to Athens (ATH) in September 2026 (see full year).

Return flights

29 Sep - 05 Oct	Ryanair
17 Sep - 23 Sep	Ryanair
22 Sep - 04 Oct	Ryanair
19 Sep - 21 Sep	Ryanair
22 Sep - 03 Oct	Ryanair
19 Sep - 27 Sep	Ryanair
20 Sep - 23 Sep	Ryanair
30 Sep - 14 Oct	Ryanair	direct
30 Sep - 19 Oct	Ryanair	direct
29 Sep - 14 Oct	Ryanair	direct
11 Sep - 15 Sep	Ryanair
30 Sep - 12 Oct	Ryanair	direct
29 Sep - 19 Oct	Ryanair	direct
23 Sep - 12 Oct	Ryanair	direct
29 Sep - 12 Oct	Ryanair	direct
25 Sep - 28 Sep	Ryanair
01 Sep - 17 Sep	Ryanair
11 Sep - 18 Sep	Ryanair
04 Sep - 15 Sep	Ryanair
15 Sep - 19 Sep	Ryanair

Also check the deals for one-way flights from London 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 London to Athens in September from 138€

Return flights