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

Return flights

05 Sep - 12 Sep	Cathay Pacific
08 Sep - 23 Sep	Cathay Pacific
05 Sep - 13 Oct	Cathay Pacific
06 Sep - 04 Oct	Cathay Pacific
04 Sep - 29 Sep	Etihad Airways
25 Sep - 07 Oct	Etihad Airways
23 Sep - 08 Oct	Etihad Airways
29 Sep - 09 Oct	Etihad Airways
11 Sep - 06 Oct	Etihad Airways
13 Sep - 28 Sep	Etihad Airways
14 Sep - 29 Sep	Etihad Airways
13 Sep - 29 Sep	Etihad Airways
12 Sep - 29 Sep	Etihad Airways
19 Sep - 13 Oct	British Airways
16 Sep - 05 Oct	Turkish Airlines
18 Sep - 06 Oct	Emirates

Also check the deals for one-way flights from New York 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 New York to Colombo in September from 629€

Return flights