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

Return flights

24 Sep - 30 Oct	Qatar Airways
16 Sep - 23 Sep	Qatar Airways
16 Sep - 01 Oct	Qatar Airways
25 Sep - 07 Oct	Qatar Airways
16 Sep - 05 Oct	Qatar Airways
19 Sep - 13 Oct	Qatar Airways
09 Sep - 04 Oct	Qatar Airways
11 Sep - 19 Sep	Qatar Airways
27 Sep - 05 Oct	Qatar Airways
27 Sep - 04 Oct	Qatar Airways
19 Sep - 04 Oct	Qatar Airways
13 Sep - 12 Oct	Qatar Airways
17 Sep - 21 Sep	Qatar Airways
11 Sep - 14 Sep	Qatar Airways
11 Sep - 15 Sep	Air Canada
04 Sep - 29 Sep	Qatar Airways

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 $1132

Return flights