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

Return flights

18 Mar - 25 Mar	British Airways
07 Mar - 28 Mar	British Airways
02 Mar - 15 Mar	British Airways
16 Mar - 24 Mar	Gulf Air
15 Mar - 29 Mar	Lufthansa
09 Mar - 16 Mar	Lufthansa
17 Mar - 07 Apr	Oman Air
29 Mar - 07 Apr	LOT
23 Mar - 30 Mar	Gulf Air
16 Mar - 31 Mar	Thai Airways
18 Mar - 08 Apr	Gulf Air
11 Mar - 29 Mar	Thai Airways
23 Mar - 02 Apr	Thai Airways
30 Mar - 06 Apr	LOT
05 Mar - 18 Mar	Air China
03 Mar - 26 Apr	Thai Airways
19 Mar - 09 Apr	Gulf Air
08 Mar - 30 Apr	Emirates
12 Mar - 08 Apr	Air China
28 Mar - 10 Apr	Air China

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 $889

Return flights