Cheapest return flights from London to Kathmandu in September from $762

Best time to book flights for London (LHR) to Kathmandu (KTM) flights at AirHint

AirHint found the following cheapest return flights from London (LHR) to Kathmandu (KTM) in September 2025 (see full year).

Return flights

23 Sep - 10 Oct Lufthansa
14 Sep - 11 Oct Austrian Airlines
14 Sep - 14 Oct Austrian Airlines
08 Sep - 17 Sep IndiGo
06 Sep - 28 Sep Lufthansa
05 Sep - 25 Sep Lufthansa
26 Sep - 06 Oct Turkish Airlines
24 Sep - 15 Oct Turkish Airlines
26 Sep - 07 Oct Turkish Airlines
18 Sep - 07 Oct Turkish Airlines
16 Sep - 07 Oct IndiGo
17 Sep - 01 Oct Lufthansa
19 Sep - 03 Oct Turkish Airlines
05 Sep - 21 Sep IndiGo
13 Sep - 20 Sep Lufthansa
08 Sep - 21 Sep Air India
03 Sep - 28 Sep IndiGo
03 Sep - 30 Sep Air India
02 Sep - 30 Sep Air India
15 Sep - 30 Sep Air India

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

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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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