Nonstop flight route between Otopeni (near Bucharest), Romania and Helena, Montana, United States:

About this route:

A direct, nonstop flight between Bucharest Henri Coandǎ International Airport (OTP), Otopeni (near Bucharest), Romania and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 5,639 miles (or 9,075 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 Bucharest Henri Coandǎ 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 Bucharest Henri Coandǎ 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 Bucharest Henri Coandǎ International Airport (OTP):

• In addition to being known as "Bucharest Henri Coandǎ International Airport", another name for OTP is "Aeroportul Internațional Henri Coandă".
• During World War II, the airport in Otopeni was used as an airbase by the German air force.
• Beyond Phase III, a new terminal building, at the eastern end of the current location is envisaged.
• Because of Bucharest Henri Coandǎ International Airport's relatively low elevation of 314 feet, planes can take off or land at Bucharest Henri Coandǎ 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.
• Bucharest Henri Coandǎ International Airport (OTP) has 2 runways.
• The closest airport to Bucharest Henri Coandǎ International Airport (OTP) is Bucharest Băneasa Aurel Vlaicu International Airport (BBU), which is located only 5 miles (8 kilometers) S of OTP.
• Companies such as Avis, Hertz, Europcar and Sixt are located between international departures hall and arrivals hall.
• A direct train service to the main railway station, Gara de Nord, runs from the Airport railway station, about 900 m from the airport.
• Bucharest Henri Coandǎ International Airport handled 7,643,467 passengers last year.
• The furthest airport from Bucharest Henri Coandǎ International Airport (OTP) is Chatham Islands (CHT), which is located 11,322 miles (18,221 kilometers) away in Waitangi, Chatham Islands, New Zealand.

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.
• 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 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".