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

Return flights

01 Sep - 23 Sep	Wizz Air UK
01 Sep - 22 Sep	Wizz Air UK
04 Sep - 23 Sep	Wizz Air UK
01 Sep - 30 Sep	Wizz Air UK
17 Sep - 04 Oct	Wizz Air UK
25 Sep - 14 Oct	Wizz Air UK
12 Sep - 25 Sep	Wizz Air UK
02 Sep - 30 Sep	Wizz Air UK
17 Sep - 03 Oct	easyJet
25 Sep - 16 Oct	FlyOne (Romania)
26 Sep - 17 Oct	Fly One
15 Sep - 06 Oct	Wizz Air Malta
15 Sep - 08 Oct	Wizz Air Malta
25 Sep - 11 Oct	Wizz Air UK
01 Sep - 21 Sep	Wizz Air UK
05 Sep - 20 Sep	Fly One
15 Sep - 29 Sep	easyJet
06 Sep - 20 Sep	easyJet
15 Sep - 01 Oct	Wizz Air UK
28 Sep - 05 Oct	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 590€

Return flights