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

Return flights

15 Apr - 25 Apr	Aegean Airlines
10 Apr - 24 Apr	Aegean Airlines
15 Apr - 01 May	Aegean Airlines
10 Apr - 28 Apr	Aegean Airlines
10 Apr - 21 Apr	Aegean Airlines
17 Apr - 08 May	Brussels Airlines
13 Apr - 30 Apr	Lufthansa
07 Apr - 21 Apr	Lufthansa
30 Apr - 18 May	Lufthansa
19 Apr - 22 Apr	Gulf Air
06 Apr - 26 Apr	Oman Air
12 Apr - 30 Apr	LOT
12 Apr - 01 May	LOT
18 Apr - 09 May	Lufthansa
04 Apr - 18 Apr	Oman Air
22 Apr - 08 May	Gulf Air
30 Apr - 07 May	Etihad Airways
23 Apr - 09 May	Oman Air
14 Apr - 05 May	Brussels Airlines
29 Apr - 12 May	LOT

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 659€

Return flights