AirHint found the following cheapest return flights from Houston (HOU) to Kathmandu (KTM) in October 2025 (see full year).

Return flights

01 Oct - 17 Oct	IndiGo
02 Oct - 20 Oct	Turkish Airlines
02 Oct - 17 Oct	Turkish Airlines
02 Oct - 19 Oct	Turkish Airlines
01 Oct - 18 Oct	Turkish Airlines
02 Oct - 18 Oct	Turkish Airlines
02 Oct - 24 Oct	Turkish Airlines
15 Oct - 22 Oct	Turkish Airlines
09 Oct - 17 Oct	IndiGo
09 Oct - 24 Oct	IndiGo

Also check the deals for one-way flights from Houston to Kathmandu in October.

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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Cheapest return flights from Houston to Kathmandu in October from 985€

Return flights