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

Return flights

01 Sep - 14 Sep	Wizz Air UK
11 Sep - 26 Sep	Wizz Air UK
11 Sep - 27 Sep	Wizz Air UK
20 Sep - 04 Oct	Wizz Air
07 Sep - 22 Sep	Wizz Air UK
02 Sep - 22 Sep	Wizz Air
04 Sep - 17 Sep	Wizz Air
22 Sep - 29 Sep	Turkish Airlines
05 Sep - 19 Sep	Wizz Air UK
03 Sep - 19 Sep	Air China
05 Sep - 20 Sep	Air China
28 Sep - 05 Oct	Turkish Airlines
25 Sep - 11 Oct	Turkish Airlines
04 Sep - 02 Oct	Turkish Airlines
12 Sep - 15 Oct	Qatar Airways
23 Sep - 15 Oct	Qatar Airways
30 Sep - 07 Oct	Qatar Airways

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 $832

Return flights