AirHint found the following cheapest return flights from London (LGW) to Santorini (Thira) (JTR) in September 2025 (see full year).

Return flights

24 Sep - 18 Oct	easyJet	direct
30 Sep - 09 Oct	easyJet	direct
28 Sep - 03 Oct	easyJet
17 Sep - 25 Sep	easyJet	direct
25 Sep - 16 Oct	easyJet	direct
30 Sep - 07 Oct	easyJet	direct
27 Sep - 07 Oct	easyJet	direct
26 Sep - 30 Sep	Wizz Air Malta
10 Sep - 17 Sep	easyJet
24 Sep - 02 Oct	easyJet	direct
28 Sep - 07 Oct	easyJet	direct
28 Sep - 30 Sep	easyJet
23 Sep - 02 Oct	easyJet	direct
24 Sep - 30 Sep	easyJet
27 Sep - 30 Sep	easyJet
30 Sep - 04 Oct	easyJet	direct
12 Sep - 18 Sep	Wizz Air Malta
27 Sep - 29 Sep	easyJet
26 Sep - 29 Sep	easyJet
20 Sep - 25 Sep	Wizz Air Malta

Also check the deals for one-way flights from London to Santorini (Thira) 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 Santorini (Thira) in September from 97€

Return flights