Distance From Whiteman Air Force Base to Mattala Rajapaksa International Airport, SZL - HRI Distance

The distance from Whiteman Air Force Base (SZL) to Mattala Rajapaksa International Airport (HRI) is 9308 miles or 14979 kilometers or 8083 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 Knob Noster ( United States ) to Mattala ( Sri Lanka )?

A one-way nonstop (direct) flight between Knob Noster and Mattala takes around 21 hours 23 minutes.

Estimated flight time from Whiteman Air Force Base, Knob Noster, United States to Mattala Rajapaksa International Airport, Mattala, Sri Lanka is 21 hours 23 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 • SZL - HRI

Kilometers		14979 km
Statute Miles		9308 miles
Nautical Miles		8083 nm
Avg. Time of Flight		21 hours 23 minutes

Whiteman Air Force Base to Mattala Rajapaksa International Airport Flight Route Map - SZL to HRI Flight Path

Location of Whiteman Air Force Base & Mattala Rajapaksa International Airport is given below.
Click the map to view Knob Noster to Mattala nonstop flight path and travel direction.

Click to see flight route on Google Map between Knob Noster, United States and Mattala, Sri Lanka. .

Nonstop flight route between Knob Noster, United States and Mattala, Sri Lanka.

Time Difference Between the Airports • SZL - HRI

Time difference between Knob Noster (United States) and Mattala (Sri Lanka) is 10 Hours 30 Minutes.
Mattala time is 10 Hours 30 Minutes ahead of Knob Noster.

Location	Local Time
Knob Noster (United States)	2025-12-13, 21:53:26 EST
Mattala (Sri Lanka)	2025-12-14, 08:23:26 +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

Whiteman Air Force Base (SZL / KSZL) Knob Noster, United States

Destination

Mattala Rajapaksa International Airport (HRI / VCRI) Mattala, Sri Lanka