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

Return flights

16 Apr - 02 May	Air India
20 Apr - 04 May	Air India
06 Apr - 20 Apr	Oman Air
09 Apr - 04 May	LOT
11 Apr - 18 Apr	Air China
27 Apr - 13 May	Air India
29 Apr - 10 May	Air India
30 Apr - 17 May	Air India
06 Apr - 04 May	Air India
24 Apr - 06 May	Air India
24 Apr - 18 May	Air India
24 Apr - 08 May	Air India
07 Apr - 26 Apr	Air India
07 Apr - 25 Apr	Air India
03 Apr - 22 Apr	Air India
03 Apr - 18 Apr	Air India
09 Apr - 27 Apr	Air China
12 Apr - 23 Apr	Emirates
08 Apr - 22 Apr	Emirates
08 Apr - 28 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 $789

Return flights