AirHint found the following cheapest return flights from Chicago (ORD) to Colombo (CMB) in March 2026 (see full year).

Return flights

24 Mar - 14 Apr	Cathay Pacific
23 Mar - 14 Apr	Cathay Pacific
24 Mar - 16 Apr	Cathay Pacific
23 Mar - 13 Apr	Cathay Pacific
24 Mar - 13 Apr	Cathay Pacific
22 Mar - 14 Apr	Cathay Pacific
24 Mar - 15 Apr	Cathay Pacific
24 Mar - 12 Apr	Cathay Pacific
23 Mar - 12 Apr	Cathay Pacific
25 Mar - 14 Apr	Cathay Pacific
26 Mar - 31 Mar	Etihad Airways

Also check the deals for one-way flights from Chicago to Colombo in March.

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 Chicago to Colombo in March from $731

Return flights