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

Return flights

02 May - 17 May	Ryanair
01 May - 17 May	Ryanair
20 May - 20 Jun	Ryanair
16 May - 27 May	Ryanair
02 May - 21 May	Ryanair
12 May - 12 Jun	Ryanair
04 May - 22 May	Ryanair
09 May - 16 May	Ryanair
23 May - 02 Jun	Turkish Airlines
01 May - 24 May	Turkish Airlines
01 May - 31 May	Turkish Airlines
22 May - 05 Jun	Turkish Airlines
22 May - 07 Jun	Turkish Airlines
18 May - 27 May	Emirates
22 May - 06 Jun	Turkish Airlines

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 730€

Return flights