Cheapest return flights from Seoul to Kathmandu in September from 509€

Best time to book flights for Seoul (ICN) to Kathmandu (KTM) flights at AirHint

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

Return flights

14 Sep - 24 Sep Air China
03 Sep - 11 Sep Air China
05 Sep - 13 Sep Air China
12 Sep - 20 Sep Air China
19 Sep - 27 Sep Air China
17 Sep - 25 Sep Air China
30 Sep - 13 Oct Air India
13 Sep - 24 Sep Air India
12 Sep - 15 Sep Air India
26 Sep - 09 Oct Air India
25 Sep - 13 Oct Air India
26 Sep - 04 Oct Air India
08 Sep - 15 Sep Singapore Airlines
26 Sep - 29 Sep Air India
27 Sep - 09 Oct Air India
19 Sep - 03 Oct Air India
27 Sep - 25 Oct Thai Airways
26 Sep - 10 Oct Air India
27 Sep - 10 Oct Air India
29 Sep - 18 Oct Thai Airways

Also check the deals for one-way flights from Seoul 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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