AirHint found the following cheapest return flights from Phuket (HKT) to London (LHR) in December 2025 (see full year).

Return flights

26 Dec - 10 Jan	Air China
13 Dec - 04 Jan	Air China
06 Dec - 06 Jan	Air China
07 Dec - 07 Jan	Air China
26 Dec - 04 Jan	Air China
22 Dec - 02 Jan	Air China
14 Dec - 30 Dec	Oman Air
10 Dec - 17 Dec	China Southern
23 Dec - 30 Dec	British Airways
17 Dec - 27 Dec	Air China
29 Dec - 05 Jan	Air China
23 Dec - 03 Jan	Oman Air
22 Dec - 03 Jan	Oman Air
19 Dec - 30 Dec	Air China
24 Dec - 02 Jan	Air China
17 Dec - 24 Dec	British Airways
24 Dec - 26 Dec	Air India
03 Dec - 14 Dec	British Airways
09 Dec - 16 Dec	Etihad Airways
05 Dec - 12 Dec	Etihad Airways

Also check the deals for one-way flights from Phuket to London 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 Phuket to London in December from $762

Return flights