Cheapest return flights from London to Hanoi in September from $587

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

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

Return flights

22 Sep - 04 Oct Air China
20 Sep - 04 Oct Air China
01 Sep - 15 Oct Air China
24 Sep - 04 Oct Air China
17 Sep - 04 Oct Air China
14 Sep - 29 Sep Singapore Airlines
08 Sep - 24 Sep Singapore Airlines
15 Sep - 24 Sep Singapore Airlines
14 Sep - 24 Sep Singapore Airlines
08 Sep - 23 Sep Singapore Airlines
01 Sep - 24 Sep Singapore Airlines
15 Sep - 08 Oct Singapore Airlines
14 Sep - 01 Oct Singapore Airlines
14 Sep - 28 Sep Singapore Airlines
01 Sep - 30 Sep Singapore Airlines
01 Sep - 01 Oct Singapore Airlines
20 Sep - 30 Sep Air China
07 Sep - 20 Sep Air China
14 Sep - 03 Oct Air China
13 Sep - 03 Oct Air China

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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