AirHint found the following cheapest return flights from London (LHR) to Ho Chi Minh City (SGN) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	China Southern
01 Dec - 21 Dec	China Southern
01 Dec - 14 Dec	China Southern
01 Dec - 07 Dec	China Southern
02 Dec - 16 Dec	Air China
01 Dec - 18 Dec	Air China
01 Dec - 15 Dec	Air China
01 Dec - 10 Dec	Air China
02 Dec - 18 Dec	Air China
02 Dec - 09 Dec	Air China
02 Dec - 01 Jan	China Eastern
30 Dec - 20 Jan	China Southern
29 Dec - 31 Jan	China Southern
01 Dec - 11 Jan	Shenzhen Airlines
29 Dec - 19 Jan	China Southern
29 Dec - 14 Jan	Shenzhen Airlines
09 Dec - 14 Jan	Austrian Airlines
29 Dec - 12 Jan	Shenzhen Airlines
28 Dec - 25 Jan	China Southern
06 Dec - 06 Jan	Oman Air

Also check the deals for one-way flights from London to Ho Chi Minh City 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 Ho Chi Minh City in December from 416€

Return flights