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

Return flights

04 Sep - 26 Sep	Qatar Airways
02 Sep - 30 Sep	Qatar Airways
09 Sep - 29 Sep	Qatar Airways
03 Sep - 25 Sep	Qatar Airways
02 Sep - 24 Sep	Qatar Airways
10 Sep - 01 Oct	Qatar Airways
02 Sep - 15 Oct	Qatar Airways
17 Sep - 11 Oct	Qatar Airways
01 Sep - 30 Sep	Qatar Airways
01 Sep - 23 Sep	Qatar Airways
17 Sep - 16 Oct	Qatar Airways
05 Sep - 12 Sep	Qatar Airways
13 Sep - 21 Sep	Qatar Airways

Also check the deals for one-way flights from San Jose 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 San Jose to Colombo in September from $1264

Return flights