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

Return flights

20 Sep - 04 Oct	Pegasus Airlines
24 Sep - 06 Oct	Pegasus Airlines
17 Sep - 01 Oct	Pegasus Airlines
18 Sep - 02 Oct	Ryanair
14 Sep - 27 Sep	Ryanair
02 Sep - 13 Sep	Ryanair
13 Sep - 28 Sep	Ryanair
04 Sep - 15 Sep	Pegasus Airlines
05 Sep - 14 Sep	Ryanair
04 Sep - 14 Sep	Ryanair
09 Sep - 23 Sep	Emirates
06 Sep - 16 Sep	Emirates
30 Sep - 14 Oct	Emirates
07 Sep - 20 Sep	Ryanair
11 Sep - 24 Sep	Emirates
26 Sep - 14 Oct	Ryanair

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

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 September from $815

Return flights