AirHint found the following cheapest return flights from London (LGW) to Kathmandu (KTM) in September 2026 (see full year).

Return flights

15 Sep - 06 Oct	Wizz Air UK
25 Sep - 11 Oct	Wizz Air UK
01 Sep - 14 Sep	Wizz Air UK
01 Sep - 16 Sep	Wizz Air UK
23 Sep - 07 Oct	Wizz Air UK
01 Sep - 15 Oct	Wizz Air UK
01 Sep - 15 Sep	Wizz Air UK
17 Sep - 30 Sep	Wizz Air UK
03 Sep - 17 Sep	Wizz Air UK
08 Sep - 15 Sep	Wizz Air UK
18 Sep - 03 Oct	Air China
05 Sep - 19 Sep	Wizz Air UK
28 Sep - 13 Oct	Qatar Airways
26 Sep - 18 Oct	Air China
10 Sep - 30 Sep	Qatar Airways
19 Sep - 04 Oct	Turkish Airlines
24 Sep - 11 Oct	Air China
12 Sep - 26 Sep	Air India
12 Sep - 10 Oct	Qatar Airways
04 Sep - 20 Sep	Wizz Air UK

Also check the deals for one-way flights from London to Kathmandu 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 Kathmandu in September from 668€

Return flights