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

Return flights

02 Apr - 24 Apr	Wizz Air Malta
13 Apr - 30 Apr	Wizz Air Malta
20 Apr - 04 May	Wizz Air UK
17 Apr - 01 May	Wizz Air Malta
09 Apr - 04 May	Wizz Air Malta
07 Apr - 17 Apr	Wizz Air Malta
11 Apr - 18 Apr	Wizz Air Malta
10 Apr - 19 Apr	Wizz Air UK
03 Apr - 22 Apr	Wizz Air Malta
20 Apr - 23 Apr	Air India
17 Apr - 27 Apr	Air India
30 Apr - 22 May	Air India
29 Apr - 23 May	Air India
28 Apr - 23 May	Air India
27 Apr - 22 May	Air India
30 Apr - 23 May	Air India
22 Apr - 26 May	Turkish Airlines
13 Apr - 13 May	SriLankan Airlines
25 Apr - 30 Apr	SriLankan Airlines
20 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 $663

Return flights