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

Return flights

05 Apr - 20 Apr	KLM
16 Apr - 21 Apr	ITA Airways
30 Apr - 17 May	KLM
23 Apr - 23 May	KLM
27 Apr - 23 May	KLM
23 Apr - 20 May	SWISS
15 Apr - 02 May	SWISS
10 Apr - 19 Apr	KLM
29 Apr - 13 May	KLM
15 Apr - 13 May	KLM
03 Apr - 11 Apr	SWISS
16 Apr - 26 Apr	SWISS
26 Apr - 25 May	KLM
11 Apr - 24 Apr	SWISS
06 Apr - 12 Apr	KLM
09 Apr - 19 Apr	KLM
13 Apr - 19 Apr	KLM
01 Apr - 19 Apr	KLM
10 Apr - 31 May	KLM
10 Apr - 30 May	KLM

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

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 April from 777€

Return flights