Cheapest one-way flights from Kathmandu to Singapore in September from $165

Best time to book flights for Kathmandu (KTM) to Singapore (SIN) flights at AirHint

AirHint found the following cheapest one-way flights from Kathmandu (KTM) to Singapore (SIN) in September 2025 (see full year).

One-Way flights

15 Sep Thai AirAsia
07 Sep Thai AirAsia
28 Sep Thai AirAsia

Also check the deals for return flights from Kathmandu to Singapore 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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