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

Return flights

12 Apr - 25 Apr	SWISS
16 Apr - 25 Apr	SWISS
14 Apr - 26 Apr	Eurowings
22 Apr - 06 May	Eurowings
22 Apr - 04 May	Eurowings
18 Apr - 19 May	Eurowings
15 Apr - 16 May	Eurowings
13 Apr - 28 Apr	SWISS
09 Apr - 26 Apr	SWISS
13 Apr - 26 Apr	SWISS
20 Apr - 29 Apr	SWISS
11 Apr - 10 May	SWISS
20 Apr - 19 May	SWISS
09 Apr - 29 Apr	SWISS
13 Apr - 04 May	SWISS
17 Apr - 16 May	Eurowings
14 Apr - 18 May	Eurowings
14 Apr - 04 May	Eurowings
08 Apr - 28 Apr	SWISS
08 Apr - 29 Apr	SWISS

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 $677

Return flights