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

Return flights

03 Apr - 24 Apr	SWISS
12 Apr - 28 Apr	Thai Airways
21 Apr - 05 May	Thai Airways
22 Apr - 05 May	Thai Airways
21 Apr - 06 May	Thai Airways
10 Apr - 10 May	Thai Airways
23 Apr - 09 May	Thai Airways
22 Apr - 20 May	Thai Airways
11 Apr - 05 May	Thai Airways
25 Apr - 20 May	Thai Airways
18 Apr - 06 May	Thai Airways
10 Apr - 30 May	Thai Airways
13 Apr - 22 Apr	Thai Airways
02 Apr - 29 Apr	Thai Airways
16 Apr - 30 Apr	Emirates
01 Apr - 10 Apr	Brussels Airlines
18 Apr - 30 Apr	Emirates
14 Apr - 25 Apr	Emirates
08 Apr - 17 Apr	Emirates
01 Apr - 30 Apr	Emirates

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 $971

Return flights