AirHint found the following cheapest return flights from Hanoi (HAN) to London (LGW) in August 2025 (see full year).

Return flights

20 Aug - 28 Aug	China Southern
15 Aug - 22 Aug	China Eastern
06 Aug - 13 Aug	China Eastern
11 Aug - 24 Aug	China Eastern
01 Aug - 14 Aug	China Eastern
17 Aug - 31 Aug	China Eastern
10 Aug - 31 Aug	China Eastern
11 Aug - 27 Aug	China Eastern
18 Aug - 08 Sep	China Eastern
17 Aug - 25 Aug	China Southern
13 Aug - 25 Aug	China Southern
27 Aug - 03 Sep	Ethiopian Airlines
28 Aug - 04 Sep	China Eastern
30 Aug - 13 Sep	China Eastern
31 Aug - 06 Sep	VietJet Air
31 Aug - 14 Sep	VietJet Air
29 Aug - 05 Sep	Emirates
28 Aug - 06 Sep	Emirates
30 Aug - 03 Sep	Emirates
25 Aug - 03 Sep	Air China

Also check the deals for one-way flights from Hanoi to London 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 Hanoi to London in August from $758

Return flights