The distance from Walker Airport () to Mattala Rajapaksa International Airport (HRI) is 8972 miles or 14438 kilometers or 7791 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.
14438 kilometers is the direct flight distance between Walker Airport (United States) and Mattala Rajapaksa International Airport (Sri Lanka).
How long does it take to travel from Cooper ( United States ) to Mattala ( Sri Lanka )?
A one-way nonstop (direct) flight between Cooper and Mattala takes around 20 hours 37 minutes.
Estimated
flight time from Walker Airport, Cooper, United States to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is
20 hours 37 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 • - HRI
| Kilometers | | 14438 km |
| Statute Miles | | 8972 miles |
| Nautical Miles | | 7791 nm |
| Avg. Time of Flight | | 20 hours 37 minutes |
Walker Airport to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path
Location of Walker Airport & Mattala Rajapaksa International Airport is given below.
Click the map to view Cooper to Mattala nonstop flight path and travel direction.
Click to see flight route on Google Map between Cooper, United States and Mattala, Sri Lanka. .
Nonstop flight route between Cooper, United States and Mattala, Sri Lanka.
Time Difference Between the Airports • - HRI
Time difference between
Cooper (United States) and
Mattala (Sri Lanka) is 10 Hours 30 Minutes.
Mattala time is 10 Hours 30 Minutes ahead of Cooper.
| Location | Local Time |
| Cooper (United States) | 2026-06-19, 20:02:50 CDT |
| Mattala (Sri Lanka) | 2026-06-20, 06:32:50 +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.