AirHint found the following cheapest return flights from London (LGW) to Hanoi (HAN) in December 2026 (see full year).

Return flights

06 Dec - 09 Dec	China Eastern
06 Dec - 20 Dec	China Eastern
05 Dec - 23 Dec	China Eastern
04 Dec - 21 Dec	China Eastern
04 Dec - 25 Dec	China Eastern
03 Dec - 16 Dec	China Eastern
06 Dec - 17 Dec	China Eastern
01 Dec - 31 Dec	China Eastern
02 Dec - 23 Dec	China Eastern
04 Dec - 18 Dec	China Eastern
02 Dec - 01 Jan	China Eastern
24 Dec - 01 Jan	China Eastern
25 Dec - 01 Jan	China Eastern
28 Dec - 12 Jan	Air China
10 Dec - 01 Jan	China Eastern
28 Dec - 10 Jan	Air China
30 Dec - 08 Jan	Air China
28 Dec - 11 Jan	Air China
28 Dec - 08 Jan	Air China
31 Dec - 10 Jan	Air China

Also check the deals for one-way flights from London to Hanoi 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 Hanoi in December from 544€

Return flights