Nonstop flight route between Phnom Penh, Cambodia and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Phnom Penh International Airport (PNH), Phnom Penh, Cambodia and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 7,819 miles (or 12,583 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 Phnom Penh 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 Phnom Penh 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 Phnom Penh International Airport (PNH):

• Cambodia Airports group plan to extended the Phnom Penh international airport passenger terminal building and increase the capacity of passenger visits and transit through this destination up to 3 million per year in the future.
• Phnom Penh International Airport (PNH) currently has only 1 runway.
• The furthest airport from Phnom Penh International Airport (PNH) is Jauja AirportFrancisco Carle Airport (JAU), which is nearly antipodal to Phnom Penh International Airport (meaning Phnom Penh International Airport is almost on the exact opposite side of the Earth from Jauja AirportFrancisco Carle Airport), and is located 12,410 miles (19,972 kilometers) away in Jauja, Peru.
• The closest airport to Phnom Penh International Airport (PNH) is Kampong Chhnang Airport (KZC), which is located 52 miles (84 kilometers) NNW of PNH.
• Because of Phnom Penh International Airport's relatively low elevation of 40 feet, planes can take off or land at Phnom Penh 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.
• The Berger Group was selected by the RGC to provide independent engineering services during the concession, to audit the design and to advise on the practicality and cost of the concession's proposed improvements.
• In addition to being known as "Phnom Penh International Airport", other names for PNH include "អាកាសយានដ្ឋានអន្តរជាតិភ្នំពេញ" and "Aéroport International de Phnom Penh".

Facts about Helena Regional Airport (HLN):

• Helena Regional Airport is a public airport two miles northeast of Helena, in Lewis and Clark County, Montana.
• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• 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.
• 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.
• Helena Regional Airport (HLN) has 3 runways.