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

Return flights

05 May - 16 May	Ryanair
01 May - 15 May	Wizz Air Malta
08 May - 24 May	Wizz Air UK
01 May - 29 May	Air India
04 May - 18 May	Air India
06 May - 20 May	Air India
18 May - 25 May	Air India
18 May - 01 Jun	Air India
06 May - 15 May	Air India
20 May - 30 May	Air India
11 May - 29 May	Air India
08 May - 05 Jun	Air India
10 May - 06 Jun	Air India
04 May - 06 Jun	Qatar Airways
03 May - 06 Jun	Qatar Airways
02 May - 06 Jun	Qatar Airways

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 $635

Return flights