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

Return flights

13 Apr - 24 Apr	Brussels Airlines
02 Apr - 28 Apr	Aegean Airlines
27 Apr - 17 May	Etihad Airways
30 Apr - 12 May	Air India
30 Apr - 07 May	Etihad Airways
20 Apr - 20 May	SWISS
30 Apr - 28 May	Lufthansa
15 Apr - 29 May	Lufthansa
09 Apr - 16 Apr	SWISS
10 Apr - 25 Apr	SWISS
10 Apr - 19 Apr	SWISS
25 Apr - 03 May	SWISS
06 Apr - 16 Apr	Aer Lingus
08 Apr - 06 May	LOT
01 Apr - 19 Apr	LOT
08 Apr - 15 Apr	Oman Air
08 Apr - 18 Apr	LOT
03 Apr - 20 Apr	LOT
17 Apr - 15 May	LOT
11 Apr - 02 May	Air India

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 641€

Return flights