The distance from Siege Cross Farm Airstrip () to Mattala Rajapaksa International Airport (HRI) is 5550 miles or 8932 kilometers or 4820 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.
8932 kilometers is the direct flight distance between Siege Cross Farm Airstrip (United Kingdom) and Mattala Rajapaksa International Airport (Sri Lanka).
How long does it take to travel from Thatcham ( United Kingdom ) to Mattala ( Sri Lanka )?
A one-way nonstop (direct) flight between Thatcham and Mattala takes around 12 hours 45 minutes.
Estimated
flight time from Siege Cross Farm Airstrip, Thatcham, United Kingdom to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is
12 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 • - HRI
| Kilometers | | 8932 km |
| Statute Miles | | 5550 miles |
| Nautical Miles | | 4820 nm |
| Avg. Time of Flight | | 12 hours 45 minutes |
Siege Cross Farm Airstrip to Mattala Rajapaksa International Airport Flight Route Map - to HRI Flight Path
Location of Siege Cross Farm Airstrip & Mattala Rajapaksa International Airport is given below.
Click the map to view Thatcham to Mattala nonstop flight path and travel direction.
Click to see flight route on Google Map between Thatcham, United Kingdom and Mattala, Sri Lanka. .
Nonstop flight route between Thatcham, United Kingdom and Mattala, Sri Lanka.
Time Difference Between the Airports • - HRI
Time difference between
Thatcham (United Kingdom) and
Mattala (Sri Lanka) is 5 Hours 30 Minutes.
Mattala time is 5 Hours 30 Minutes ahead of Thatcham.
| Location | Local Time |
| Thatcham (United Kingdom) | 2026-03-19, 15:51:11 GMT |
| Mattala (Sri Lanka) | 2026-03-19, 21:21:11 +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.