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

Return flights

31 Dec - 21 Jan	China Southern
31 Dec - 25 Jan	China Southern
30 Dec - 23 Jan	China Eastern
31 Dec - 23 Jan	China Eastern
30 Dec - 21 Jan	China Eastern
29 Dec - 21 Jan	China Eastern
29 Dec - 20 Jan	China Eastern
31 Dec - 26 Jan	China Southern
30 Dec - 20 Jan	China Eastern
31 Dec - 19 Jan	China Southern
28 Dec - 31 Dec	China Southern
27 Dec - 30 Dec	Cathay Pacific
27 Dec - 29 Dec	Vietnam Airlines
29 Dec - 30 Dec	Cathay Pacific
27 Dec - 30 Dec	Vietnam Airlines	direct

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 615€

Return flights