Cheapest return flights from London to Hanoi in September from $1073

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

Return flights

17 Sep - 23 Sep British Airways
02 Sep - 16 Sep British Airways
21 Sep - 07 Oct British Airways
09 Sep - 23 Sep British Airways
04 Sep - 20 Sep British Airways
14 Sep - 23 Sep British Airways
28 Sep - 28 Oct British Airways
30 Sep - 21 Oct British Airways
21 Sep - 30 Sep British Airways
07 Sep - 20 Sep British Airways
01 Sep - 15 Sep British Airways
21 Sep - 28 Sep British Airways
21 Sep - 29 Sep British Airways
28 Sep - 15 Oct British Airways
27 Sep - 12 Oct KLM
24 Sep - 10 Oct SWISS
20 Sep - 04 Oct KLM
18 Sep - 02 Oct SWISS

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

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