Cheapest return flights from London to Hanoi in September from $547

Best time to book flights for London (LHR) to Hanoi (HAN) flights at AirHint

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

Return flights

21 Sep - 15 Oct China Southern
24 Sep - 26 Oct China Southern
23 Sep - 26 Oct China Southern
24 Sep - 27 Oct China Southern
20 Sep - 10 Oct China Southern
22 Sep - 12 Oct China Southern
16 Sep - 13 Oct China Southern
11 Sep - 15 Oct China Southern
22 Sep - 26 Oct China Southern
15 Sep - 12 Oct China Southern
20 Sep - 30 Sep Shenzhen Airlines
08 Sep - 14 Sep Shenzhen Airlines
01 Sep - 17 Sep Shenzhen Airlines
08 Sep - 17 Sep Shenzhen Airlines
01 Sep - 14 Sep Shenzhen Airlines
10 Sep - 14 Sep Shenzhen Airlines
10 Sep - 15 Sep Shenzhen Airlines
08 Sep - 15 Sep Shenzhen Airlines
07 Sep - 14 Sep Shenzhen Airlines
07 Sep - 17 Sep Shenzhen Airlines

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

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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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