Distance From James M Cox Dayton International Airport to Bandaranaike International Colombo Airport, DAY - CMB Distance

The distance from James M Cox Dayton International Airport (DAY) to Bandaranaike International Colombo Airport (CMB) is 9029 miles or 14531 kilometers or 7841 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.

---

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

A one-way nonstop (direct) flight between Dayton and Colombo takes around 20 hours 45 minutes.

Estimated flight time from James M Cox Dayton International Airport, Dayton, United States to Bandaranaike International Colombo Airport, Colombo, Sri Lanka is 20 hours 45 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 • DAY - CMB

Kilometers		14531 km
Statute Miles		9029 miles
Nautical Miles		7841 nm
Avg. Time of Flight		20 hours 45 minutes

James M Cox Dayton International Airport to Bandaranaike International Colombo Airport Flight Route Map - DAY to CMB Flight Path

Location of James M Cox Dayton International Airport & Bandaranaike International Colombo Airport is given below.
Click the map to view Dayton to Colombo nonstop flight path and travel direction.

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

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

Time Difference Between the Airports • DAY - CMB

Time difference between Dayton (United States) and Colombo (Sri Lanka) is 10 Hours 30 Minutes.
Colombo time is 10 Hours 30 Minutes ahead of Dayton.

Location	Local Time
Dayton (United States)	2025-12-15, 21:14:15 EST
Colombo (Sri Lanka)	2025-12-16, 07:44:15 +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

James M Cox Dayton International Airport (DAY / KDAY) Dayton, United States

Destination

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