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

Return flights

20 May - 20 Jun	Ryanair
01 May - 18 May	SunExpress
01 May - 17 May	SunExpress
04 May - 24 May	Ryanair
04 May - 27 May	Ryanair
04 May - 17 May	Ryanair
04 May - 20 May	Ryanair
09 May - 23 May	Ryanair
09 May - 18 May	Ryanair
06 May - 20 May	Wizz Air
07 May - 19 May	Wizz Air UK
30 May - 28 Jun	Wizz Air UK
15 May - 27 Jun	Wizz Air UK
26 May - 08 Jun	Wizz Air UK
30 May - 01 Jun	Wizz Air UK
08 May - 05 Jun	Wizz Air UK
21 May - 22 Jun	Wizz Air Malta
06 May - 06 Jun	Gulf Air
10 May - 05 Jun	Etihad Airways
01 May - 01 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 505€

Return flights