The distance from Alloy Heliport () to Mattala Rajapaksa International Airport (HRI) is 9166 miles or 14751 kilometers or 7960 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.
14751 kilometers is the direct flight distance between Alloy Heliport (United States) and Mattala Rajapaksa International Airport (Sri Lanka).
How long does it take to travel from Montgomery ( United States ) to Mattala ( Sri Lanka )?
A one-way nonstop (direct) flight between Montgomery and Mattala takes around 21 hours 4 minutes.
Estimated
flight time from Alloy Heliport, Montgomery, United States to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is
21 hours 4 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 | | 14751 km |
| Statute Miles | | 9166 miles |
| Nautical Miles | | 7960 nm |
| Avg. Time of Flight | | 21 hours 4 minutes |
Alloy Heliport to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path
Location of Alloy Heliport & Mattala Rajapaksa International Airport is given below.
Click the map to view Montgomery to Mattala nonstop flight path and travel direction.
Click to see flight route on Google Map between Montgomery, United States and Mattala, Sri Lanka. .
Nonstop flight route between Montgomery, United States and Mattala, Sri Lanka.
Time Difference Between the Airports • - HRI
Time difference between
Montgomery (United States) and
Mattala (Sri Lanka) is 9 Hours 30 Minutes.
Mattala time is 9 Hours 30 Minutes ahead of Montgomery.
| Location | Local Time |
| Montgomery (United States) | 2026-09-23, 20:18:56 EDT |
| Mattala (Sri Lanka) | 2026-09-24, 05:48:56 +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.