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

Return flights

15 Sep - 15 Oct	Ryanair
23 Sep - 08 Oct	Ryanair
11 Sep - 16 Sep	Pegasus Airlines
22 Sep - 22 Oct	Ryanair
27 Sep - 20 Oct	Ryanair
15 Sep - 22 Sep	Ryanair
25 Sep - 16 Oct	Ryanair
21 Sep - 29 Sep	Ryanair
26 Sep - 05 Oct	Pegasus Airlines
02 Sep - 16 Sep	Ryanair
10 Sep - 22 Sep	Ryanair
30 Sep - 16 Oct	Ryanair
18 Sep - 29 Sep	Ryanair
08 Sep - 15 Sep	Ryanair
18 Sep - 18 Oct	Ryanair
09 Sep - 16 Sep	Ryanair
02 Sep - 23 Sep	Ryanair
15 Sep - 21 Sep	Ryanair
16 Sep - 12 Oct	Ryanair
03 Sep - 01 Oct	Royal Jordanian

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 610€

Return flights