Cheapest return flights from London to Kathmandu in September from $618

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

Return flights

07 Sep - 29 Sep Pegasus Airlines
04 Sep - 18 Sep Pegasus Airlines
13 Sep - 19 Sep Ryanair
25 Sep - 04 Oct AJet
12 Sep - 19 Sep Jet2
15 Sep - 22 Sep Ryanair
05 Sep - 10 Sep Pegasus Airlines
08 Sep - 02 Oct Ryanair
08 Sep - 25 Sep Ryanair
08 Sep - 28 Sep Pegasus Airlines
04 Sep - 28 Sep AJet
05 Sep - 23 Sep Pegasus Airlines
18 Sep - 10 Oct Ryanair
13 Sep - 02 Oct Ryanair
09 Sep - 02 Oct Ryanair
20 Sep - 06 Oct Ryanair
14 Sep - 12 Oct Ryanair
26 Sep - 17 Oct Ryanair
22 Sep - 22 Oct Ryanair
29 Sep - 16 Oct AJet

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

Skyscanner

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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