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

Return flights

01 Sep - 30 Sep	Wizz Air UK
04 Sep - 19 Sep	Wizz Air UK
04 Sep - 26 Sep	Wizz Air UK
30 Sep - 17 Oct	Wizz Air Malta
04 Sep - 05 Oct	Wizz Air UK
10 Sep - 19 Sep	Wizz Air UK
30 Sep - 21 Oct	Wizz Air
18 Sep - 05 Oct	Wizz Air UK
28 Sep - 12 Oct	FlyOne (Romania)
01 Sep - 04 Oct	Wizz Air UK
28 Sep - 17 Oct	Wizz Air UK
25 Sep - 16 Oct	Wizz Air
10 Sep - 25 Sep	Wizz Air UK
11 Sep - 27 Sep	Wizz Air
04 Sep - 18 Sep	easyJet
05 Sep - 21 Sep	Wizz Air UK
19 Sep - 04 Oct	easyJet
18 Sep - 01 Oct	easyJet
02 Sep - 10 Sep	easyJet
10 Sep - 27 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 560€

Return flights