Nonstop flight route between Roundup, Montana, United States and Sembach, Germany:

About this route:

A direct, nonstop flight between Roundup Airport (RPX), Roundup, Montana, United States and Sembach KaserneSembach Air Base (SEX), Sembach, Germany would travel a Great Circle distance of 4,791 miles (or 7,711 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 Roundup Airport and Sembach KaserneSembach Air Base, 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 Roundup Airport and Sembach KaserneSembach Air Base. 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 Roundup Airport (RPX):

• Roundup Airport (RPX) has 2 runways.
• The furthest airport from Roundup Airport (RPX) is Sir Gaëtan Duval Airport (RRG), which is located 10,535 miles (16,954 kilometers) away in Rodrigues Island, Mauritius.
• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.

Facts about Sembach KaserneSembach Air Base (SEX):

• Although the Air Base was constructed in the French Zone of Occupation under French direction, it was built to be used by NATO forces and was, moreover, intended to be an American Air Base from the beginning.
• At Nouasseur all training missions were accomplished as required.
• The third and final phase of construction at Sembach Air Base was conducted in the summer of 1954 when the housing area was built.
• The closest airport to Sembach KaserneSembach Air Base (SEX) is Ramstein Air Base (RMS), which is located only 13 miles (21 kilometers) WSW of SEX.
• The furthest airport from Sembach KaserneSembach Air Base (SEX) is Chatham Islands (CHT), which is located 11,992 miles (19,299 kilometers) away in Waitangi, Chatham Islands, New Zealand.
• In 1950, as a result of the Cold War threat of the Soviet Union, the United States was rapidly expanding its air forces, announcing an increase in the number of combat wings from 48 in 1950 to 95 by June 1952.