Cheapest return flights from London to Kathmandu in September from $701

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

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

Return flights

18 Sep - 06 Oct Pegasus Airlines
29 Sep - 11 Oct AJet
30 Sep - 23 Oct Wizz Air
26 Sep - 03 Oct Pegasus Airlines
24 Sep - 30 Oct Pegasus Airlines
22 Sep - 27 Oct Ryanair
30 Sep - 28 Oct Wizz Air
25 Sep - 24 Oct AJet
26 Sep - 25 Oct Corendon Airlines
08 Sep - 25 Sep IndiGo
09 Sep - 23 Sep IndiGo
04 Sep - 18 Sep IndiGo
15 Sep - 20 Sep IndiGo
04 Sep - 09 Sep IndiGo
12 Sep - 26 Sep IndiGo
01 Sep - 16 Sep IndiGo
04 Sep - 20 Sep IndiGo
05 Sep - 27 Sep IndiGo
01 Sep - 22 Sep IndiGo
30 Sep - 14 Oct Emirates

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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