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

Return flights

11 May - 15 Jun	Ryanair
05 May - 16 May	Ryanair
05 May - 19 May	Ryanair
14 May - 17 May	Ryanair
04 May - 04 Jun	Ryanair
08 May - 23 May	Ryanair
04 May - 06 Jun	Ryanair
08 May - 24 May	Ryanair
15 May - 29 May	Turkish Airlines
03 May - 31 May	Turkish Airlines
06 May - 10 May	Ryanair
04 May - 21 May	Emirates
15 May - 18 May	Ryanair
11 May - 11 Jun	Turkish Airlines
03 May - 03 Jun	Emirates
22 May - 05 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 715€

Return flights