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

Return flights

17 Sep - 26 Sep	Air India
17 Sep - 24 Sep	Air India
19 Sep - 24 Sep	Air India
12 Sep - 19 Sep	Air India
22 Sep - 29 Sep	SalamAir
01 Sep - 15 Sep	SalamAir
18 Sep - 30 Oct	SalamAir
04 Sep - 14 Sep	SalamAir
26 Sep - 30 Sep	SalamAir
15 Sep - 14 Oct	SalamAir
05 Sep - 05 Oct	SalamAir
20 Sep - 08 Oct	SalamAir
10 Sep - 20 Sep	flydubai
05 Sep - 08 Sep	SalamAir
05 Sep - 05 Oct	SriLankan Airlines	direct
18 Sep - 30 Oct	SriLankan Airlines	direct

Also check the deals for one-way flights from Dammam to Colombo 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 Colombo in September from 252€

Return flights