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

Return flights

18 May - 01 Jun	Virgin Atlantic
01 May - 01 Jun	Virgin Atlantic
23 May - 31 May	Air Serbia
09 May - 01 Jun	Virgin Atlantic
08 May - 15 May	Etihad Airways
29 May - 26 Jun	Etihad Airways
19 May - 03 Jun	Gulf Air
13 May - 06 Jun	Gulf Air
01 May - 16 May	Lufthansa
15 May - 28 May	Lufthansa
01 May - 14 May	Lufthansa
27 May - 17 Jun	British Airways
14 May - 25 May	KLM
02 May - 23 May	SWISS
01 May - 21 May	SWISS
02 May - 17 May	SWISS
05 May - 19 May	KLM
30 May - 06 Jun	Gulf Air
18 May - 08 Jun	Air India
23 May - 23 Jun	Air India

Also check the deals for one-way flights from London to Kathmandu in May.

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 May from 661€

Return flights