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

Return flights

12 Dec - 14 Dec	Wizz Air UK
15 Dec - 18 Dec	Wizz Air UK
15 Dec - 22 Dec	Wizz Air UK
15 Dec - 24 Dec	Wizz Air UK
02 Dec - 10 Dec	Wizz Air UK
14 Dec - 24 Dec	Wizz Air UK
29 Dec - 11 Jan	easyJet
16 Dec - 23 Dec	Wizz Air UK
06 Dec - 01 Jan	Wizz Air UK
29 Dec - 02 Jan	Wizz Air UK
25 Dec - 28 Dec	Wizz Air UK
22 Dec - 27 Dec	easyJet
22 Dec - 26 Dec	easyJet
20 Dec - 04 Jan	easyJet
20 Dec - 02 Jan	SKY express

Also check the deals for one-way flights from London to Santorini (Thira) in December.

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 December from 149€

Return flights