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

Return flights

17 Sep - 30 Sep	Ryanair
15 Sep - 22 Sep	Pegasus Airlines
08 Sep - 15 Sep	Pegasus Airlines
01 Sep - 15 Sep	Pegasus Airlines
02 Sep - 23 Sep	Ryanair
01 Sep - 22 Sep	Pegasus Airlines
07 Sep - 21 Sep	Ryanair
30 Sep - 07 Oct	Pegasus Airlines
28 Sep - 12 Oct	Ryanair
08 Sep - 24 Sep	Ryanair
13 Sep - 21 Sep	Pegasus Airlines
14 Sep - 05 Oct	Ryanair
19 Sep - 30 Sep	Pegasus Airlines
23 Sep - 07 Oct	Ryanair
25 Sep - 09 Oct	Pegasus Airlines
23 Sep - 04 Oct	Ryanair
30 Sep - 21 Oct	Emirates
21 Sep - 14 Oct	Emirates
28 Sep - 11 Oct	Emirates
20 Sep - 04 Oct	Emirates

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 615€

Return flights