Nonstop flight route between Nairobi, Kenya and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Jomo Kenyatta International Airport (NBO), Nairobi, Kenya and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,790 miles (or 14,146 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 Jomo Kenyatta International Airport and Helena Regional 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 Jomo Kenyatta International Airport and Helena Regional 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 Jomo Kenyatta International Airport (NBO):

• Jomo Kenyatta International Airport (NBO) currently has only 1 runway.
• An addition to the existing terminal building, Unit 4, is under construction at a cost of 9.4 billion Kenyan shillings and is slated to open in 2013.
• The closest airport to Jomo Kenyatta International Airport (NBO) is Wilson Airport (WIL), which is located only 8 miles (12 kilometers) W of NBO.
• The architects for the terminal were Pascall+Watson, a London based firm that also designed Heathrow Terminal 5 and Dublin Airport Terminal 2.
• The Kenya Civil Aviation Authority has its head office in the KAA Complex on the airport property.African Express Airways has its head office on the airport property.
• The original terminal, located on the north side of the runway, is used by the Kenya Air Force and is sometimes referred as Old Embakasi Airport.
• The airport served 5,803,635 passengers in 2011, making it the ninth-busiest airport in Africa by total passengers.
• The main entrance to Jomo Kenyatta International Airport is on Airport South Road, which can be accessed by an exit from the A109 expressway.
• The furthest airport from Jomo Kenyatta International Airport (NBO) is Atuona Airport (AUQ), which is located 11,621 miles (18,703 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
• Jomo Kenyatta International Airport handled 580,363 passengers last year.
• Because of Jomo Kenyatta International Airport's high elevation of 5,327 feet, planes must typically fly at a faster airspeed in order to takeoff or land at NBO. Combined with a high temperature, this could make NBO a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.

Facts about Helena Regional Airport (HLN):

• 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.
• In addition to being known as "Helena Regional Airport", another name for HLN is "Helena Army Airfield".
• 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.
• Helena Regional Airport covers 1,224 acres at an elevation of 3,877 feet.
• Helena Regional Airport (HLN) has 3 runways.
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.