Nonstop flight route between Helena, Montana, United States and Colombo, Sri Lanka:

About this route:

A direct, nonstop flight between Helena Regional Airport (HLN), Helena, Montana, United States and Bandaranaike International Airport (CMB), Colombo, Sri Lanka would travel a Great Circle distance of 8,649 miles (or 13,920 kilometers).

A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the large distance between Helena Regional Airport and Bandaranaike International Airport, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between Helena Regional Airport and Bandaranaike International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Helena Regional Airport (HLN):

• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• Helena Regional Airport (HLN) has 3 runways.
• The furthest airport from Helena Regional Airport (HLN) is Sir Gaëtan Duval Airport (RRG), which is located 10,563 miles (17,000 kilometers) away in Rodrigues Island, Mauritius.
• The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport.Federal Aviation Administration records say the airport had 85,649 passenger boardings in calendar year 2008, 88,314 in 2009 and 98,193 in 2010.
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.

Facts about Bandaranaike International Airport (CMB):

• Bandaranaike International Airport is one of the two international airports serving the city of Colombo, the other is Ratmalana Airport.
• Bandaranaike International Airport (CMB) currently has only 1 runway.
• The furthest airport from Bandaranaike International Airport (CMB) is Seymour Airport (GPS), which is located 11,614 miles (18,691 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
• Airport expansion projects have recently been undertaken at the airport under the Stage 1, Phase II Expansion Project.
• In addition to being known as "Bandaranaike International Airport", another name for CMB is "බණ්ඩාරනායක ජාත්‍යන්තර ගුවන්තොටුපළபண்டாரநாயக்க பன்னாட்டு விமான நிலையம்".
• Bandaranaike International Airport handled 7,328,798 passengers last year.
• The second stage will involve the acquisition of 600 hectares of public land, the construction of a runway capable of accommodating new-generation airplanes, an aircraft repair and maintenance center, an arrival and a departure terminal, a shopping arcade, a cargo complex connected to the airport by rail and a multistory car park.
• The closest airport to Bandaranaike International Airport (CMB) is Ratmalana Airport (RML), which is located 25 miles (40 kilometers) S of CMB.
• The second phase of the expansion project is being carried out with Japanese assistance and is expected to be completed by 2015.
• Bandaranaike International Airport is equipped with 6 double jetway gates in preparation for airlines introducing Airbus A380 service.
• In 1957 it closed as the British left the island, and SWRD Bandaranaike removed all the British Military airfields from Ceylon, the airfield was handed over to the Royal Ceylon Air Force and renamed Katunayake.
• Because of Bandaranaike International Airport's relatively low elevation of 26 feet, planes can take off or land at Bandaranaike International Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.