Nonstop flight route between Butterworth, Penang, Malaysia and Helena, Montana, United States:

About this route:

A direct, nonstop flight between RMAF Butterworth (BWH), Butterworth, Penang, Malaysia and Helena Regional Airport (HLN), Helena, Montana, United States would travel a Great Circle distance of 8,330 miles (or 13,405 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 RMAF Butterworth 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 RMAF Butterworth 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 RMAF Butterworth (BWH):

• RMAF Butterworth (BWH) currently has only 1 runway.
• The closest airport to RMAF Butterworth (BWH) is RMAF Butterworth (UTE), which is located only 0 mile (0 kilometer) N of BWH.
• In addition to being known as "RMAF Butterworth", another name for BWH is "TUDM Butterworth".
• Because of RMAF Butterworth's relatively low elevation of 8 feet, planes can take off or land at RMAF Butterworth 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 RAF airfield was subsequently captured by units of the advancing 25th Army on 20 December 1941 and the control of the airbase was to remain in the hands of IJA until the end of hostilities in September 1945.
• The furthest airport from RMAF Butterworth (BWH) is Cap. FAP Guillermo Concha Iberico International Airport (PIU), which is nearly antipodal to RMAF Butterworth (meaning RMAF Butterworth is almost on the exact opposite side of the Earth from Cap. FAP Guillermo Concha Iberico International Airport), and is located 12,365 miles (19,900 kilometers) away in Piura, Peru.
• On 30 June 1988, the airfield was handed over by RAAF to the Royal Malaysian Air Force and was renamed as RMAF Station Butterworth.

Facts about Helena Regional Airport (HLN):

• The closest airport to Helena Regional Airport (HLN) is Bert Mooney Airport (BTM), which is located 51 miles (83 kilometers) SSW of HLN.
• Helena Regional Airport (HLN) has 3 runways.
• 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.