Cheapest return flights from London to Kathmandu in September from $535

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

Return flights

19 Sep - 07 Oct Pegasus Airlines
23 Sep - 14 Oct Pegasus Airlines
21 Sep - 27 Sep Pegasus Airlines
27 Sep - 03 Oct Pegasus Airlines
26 Sep - 30 Sep Pegasus Airlines
28 Sep - 02 Oct Pegasus Airlines
27 Sep - 05 Oct Ryanair
28 Sep - 18 Oct Pegasus Airlines
20 Sep - 30 Sep Pegasus Airlines
19 Sep - 30 Oct Pegasus Airlines
21 Sep - 22 Sep Pegasus Airlines
23 Sep - 12 Oct Pegasus Airlines
28 Sep - 22 Oct Pegasus Airlines
19 Sep - 22 Oct Pegasus Airlines
20 Sep - 23 Sep Pegasus Airlines
21 Sep - 24 Sep Pegasus Airlines
28 Sep - 30 Sep Pegasus Airlines
21 Sep - 30 Sep Pegasus Airlines
23 Sep - 24 Sep Pegasus Airlines
21 Sep - 28 Sep Pegasus Airlines

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.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu

Feel free to contact us with any feedback or request another flight research.