Nonstop flight route between Boise, Idaho, United States and Roundup, Montana, United States:

About this route:

A direct, nonstop flight between Boise Airport (BOI), Boise, Idaho, United States and Roundup Airport (RPX), Roundup, Montana, United States would travel a Great Circle distance of 425 miles (or 684 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 relatively short distance between Boise Airport and Roundup Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about Boise Airport (BOI):

• The furthest airport from Boise Airport (BOI) is Tôlanaro Airport (FTU), which is located 10,843 miles (17,451 kilometers) away in Tôlanaro, Madagascar.
• Boise Airport (BOI) has 3 runways.
• Boise Airport is a joint civil-military airport three miles south of Boise in Ada County, Idaho.
• The current airport has its origins in 1936 when Boise began buying and leasing land for the airport.
• In addition to being known as "Boise Airport", other names for BOI include "Boise Air Terminal" and "Gowen Field".
• During World War II the Army Air Corps, later Army Air Forces, leased the field for use a training base for B-17 Flying Fortress and B-24 Liberator bomber crews.
• Boise is a landing rights airfield requiring international general aviation flights to receive permission from a Customs and Border Protection officer before landing.
• The airport can handle minor maintenance and repairs through fixed base operators Jackson Jet Center, Turbo Air and Western Aircraft.
• The closest airport to Boise Airport (BOI) is Mountain Home Air Force Base (MUO), which is located 40 miles (64 kilometers) SSE of BOI.
• The Boise Airport was a hub for Horizon Air from the late 1980s to the early 2000s with over 50 flights to 15 destinations at its peak, but was scaled down post 9/11.

Facts about Roundup Airport (RPX):

• Roundup Airport (RPX) has 2 runways.
• The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
• 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.