Cheapest return flights from London to Kathmandu in September from $728

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

Return flights

13 Sep - 07 Oct Ryanair
09 Sep - 26 Sep Pegasus Airlines
05 Sep - 24 Sep Ryanair
20 Sep - 24 Sep Pegasus Airlines
05 Sep - 23 Sep Ryanair
08 Sep - 15 Sep Ryanair
19 Sep - 10 Oct Pegasus Airlines
19 Sep - 04 Oct Pegasus Airlines
04 Sep - 21 Sep Turkish Airlines
15 Sep - 21 Sep Pegasus Airlines
30 Sep - 28 Oct Pegasus Airlines
11 Sep - 27 Sep Turkish Airlines
12 Sep - 04 Oct Pegasus Airlines
30 Sep - 31 Oct AJet
25 Sep - 25 Oct Pegasus Airlines
14 Sep - 30 Sep Turkish Airlines
05 Sep - 12 Sep Fly One
18 Sep - 03 Oct Turkish Airlines
30 Sep - 10 Oct Turkish Airlines
28 Sep - 10 Oct Pegasus Airlines

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

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