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

Return flights

31 Aug - 20 Sep	British Airways
31 Aug - 13 Sep	British Airways
26 Aug - 02 Sep	British Airways
19 Aug - 31 Aug	British Airways
17 Aug - 24 Aug	British Airways
10 Aug - 01 Sep	British Airways
18 Aug - 30 Aug	British Airways
27 Aug - 09 Sep	British Airways
11 Aug - 28 Aug	KLM
20 Aug - 30 Aug	British Airways
13 Aug - 17 Sep	Condor
03 Aug - 02 Sep	British Airways
30 Aug - 19 Sep	KLM
19 Aug - 29 Aug	Lufthansa
28 Aug - 11 Sep	SWISS
15 Aug - 29 Aug	KLM
17 Aug - 31 Aug	British Airways
03 Aug - 19 Aug	British Airways
17 Aug - 23 Aug	Condor
24 Aug - 05 Sep	KLM

Also check the deals for one-way flights from London to Hanoi in August.

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 August from $1072

Return flights