Distance From Ontario Municipal Airport to Bandaranaike International Colombo Airport, ONO - CMB Distance

The distance from Ontario Municipal Airport (ONO) to Bandaranaike International Colombo Airport (CMB) is 8745 miles or 14074 kilometers or 7594 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Oregon ( United States ) to Colombo ( Sri Lanka )?

A one-way nonstop (direct) flight between Oregon and Colombo takes around 20 hours 6 minutes.

Estimated flight time from Ontario Municipal Airport, Oregon, United States to Bandaranaike International Colombo Airport, Colombo, Sri Lanka is 20 hours 6 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • ONO - CMB

Kilometers		14074 km
Statute Miles		8745 miles
Nautical Miles		7594 nm
Avg. Time of Flight		20 hours 6 minutes

Ontario Municipal Airport to Bandaranaike International Colombo Airport Flight Route Map - ONO to CMB Flight Path

Location of Ontario Municipal Airport & Bandaranaike International Colombo Airport is given below.
Click the map to view Oregon to Colombo nonstop flight path and travel direction.

Click to see flight route on Google Map between Oregon, United States and Colombo, Sri Lanka. .

Nonstop flight route between Oregon, United States and Colombo, Sri Lanka.

Time Difference Between the Airports • ONO - CMB

Time difference between Oregon (United States) and Colombo (Sri Lanka) is 12 Hours 30 Minutes.
Colombo time is 12 Hours 30 Minutes ahead of Oregon.

Location	Local Time
Oregon (United States)	2025-12-15, 08:39:10 MST
Colombo (Sri Lanka)	2025-12-15, 21:09:10 +0530

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Ontario Municipal Airport (ONO / KONO) Oregon, United States

Destination

Bandaranaike International Colombo Airport (CMB / VCBI) Colombo, Sri Lanka