AirHint found the following cheapest return flights from London (LON) to Ho Chi Minh City (SGN) in September 2025 (see full year).

Return flights

25 Sep - 09 Oct	Air China
30 Sep - 16 Oct	Air China
20 Sep - 18 Oct	Shenzhen Airlines
22 Sep - 06 Oct	Shenzhen Airlines
20 Sep - 06 Oct	Shenzhen Airlines
27 Sep - 24 Oct	Shenzhen Airlines
21 Sep - 06 Oct	Shenzhen Airlines
24 Sep - 15 Oct	Shenzhen Airlines
28 Sep - 26 Oct	Air China
25 Sep - 11 Oct	Air China
21 Sep - 25 Sep	Air India
24 Sep - 30 Sep	Wizz Air UK
21 Sep - 29 Sep	Pegasus Airlines
22 Sep - 29 Sep	Pegasus Airlines
24 Sep - 27 Sep	Shenzhen Airlines
26 Sep - 30 Sep	Pegasus Airlines
23 Sep - 29 Sep	Ryanair
19 Sep - 25 Sep	Pegasus Airlines
23 Sep - 30 Sep	Ryanair
21 Sep - 28 Sep	Shenzhen Airlines

Also check the deals for one-way flights from London to Ho Chi Minh City 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 Ho Chi Minh City in September from 423€

Return flights