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

Return flights

03 Sep - 03 Oct	Air Arabia
11 Sep - 18 Sep	Air India
04 Sep - 06 Sep	Nepal Airlines	direct
16 Sep - 23 Sep	IndiGo
12 Sep - 19 Sep	Air India
13 Sep - 20 Sep	IndiGo
12 Sep - 18 Oct	Etihad Airways
29 Sep - 06 Oct	Biman Bangladesh Airlines
29 Sep - 28 Oct	Biman Bangladesh Airlines
19 Sep - 29 Sep	Air India
20 Sep - 20 Oct	IndiGo
20 Sep - 18 Oct	IndiGo
18 Sep - 25 Sep	IndiGo
02 Sep - 05 Sep	Air India Express
25 Sep - 13 Oct	Air India
18 Sep - 31 Oct	Air India
25 Sep - 25 Oct	Air India
27 Sep - 30 Oct	Air India

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

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 Dammam to Kathmandu in September from 311€

Return flights