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

Return flights

26 Mar - 16 Apr	Vueling Airlines
02 Mar - 23 Mar	Gulf Air
03 Mar - 24 Mar	Gulf Air
09 Mar - 15 Mar	Gulf Air
09 Mar - 22 Mar	Gulf Air
09 Mar - 23 Mar	Gulf Air
04 Mar - 23 Mar	Gulf Air
05 Mar - 21 Mar	Gulf Air
21 Mar - 02 Apr	Vueling Airlines
06 Mar - 27 Mar	Oman Air
05 Mar - 26 Mar	Gulf Air
13 Mar - 20 Mar	Oman Air
26 Mar - 11 Apr	Vueling Airlines
31 Mar - 21 Apr	SWISS
31 Mar - 20 Apr	SWISS
23 Mar - 08 Apr	Oman Air
15 Mar - 01 Apr	Lufthansa
21 Mar - 18 Apr	Oman Air
11 Mar - 01 Apr	Lufthansa
05 Mar - 05 Apr	SWISS

Also check the deals for one-way flights from London to Kathmandu in March.

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 March from 592€

Return flights