Nonstop flight route between Colby, Kansas, United States and Roundup, Montana, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from CBK to RPX:
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- About this route
- CBK Airport Information
- RPX Airport Information
- Facts about CBK
- Facts about RPX
- Map of Nearest Airports to CBK
- List of Nearest Airports to CBK
- Map of Furthest Airports from CBK
- List of Furthest Airports from CBK
- Map of Nearest Airports to RPX
- List of Nearest Airports to RPX
- Map of Furthest Airports from RPX
- List of Furthest Airports from RPX
About this route:
A direct, nonstop flight between Colby Municipal Airport (CBK), Colby, Kansas, United States and Roundup Airport (RPX), Roundup, Montana, United States would travel a Great Circle distance of 617 miles (or 992 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 Colby Municipal Airport and Roundup Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | CBK / KCBK | 
| Airport Names: | 
 | 
| Location: | Colby, Kansas, United States | 
| GPS Coordinates: | 39°25'39"N by 101°2'48"W | 
| Area Served: | Colby, Kansas | 
| Operator/Owner: | City of Colby | 
| Airport Type: | Public | 
| Elevation: | 3187 feet (971 meters) | 
| # of Runways: | 3 | 
| View all routes: | Routes from CBK | 
| More Information: | CBK Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | RPX / KRPX | 
| Airport Name: | Roundup Airport | 
| Location: | Roundup, Montana, United States | 
| GPS Coordinates: | 46°28'30"N by 108°32'35"W | 
| Area Served: | Roundup, Montana | 
| Operator/Owner: | City of Roundup & Musselshell County | 
| Airport Type: | Public | 
| Elevation: | 3490 feet (1,064 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from RPX | 
| More Information: | RPX Maps & Info | 
Facts about Colby Municipal Airport (CBK):
- The closest airport to Colby Municipal Airport (CBK) is Goodland Municipal Airport (GLD), which is located 35 miles (56 kilometers) W of CBK.
- Colby Municipal Airport (CBK) has 3 runways.
- In addition to being known as "Colby Municipal Airport", another name for CBK is "Shalz Field".
- Colby Municipal Airport or Shalz Field is on Kansas Highway 25, two miles north of Colby, in Thomas County, Kansas.
- The airport's page at the Kansas Department of Transportation Airport Directory lists the name as Shaltz Field, but that spelling is incorrect as per the Federal Register dated March 8, 2004.
- The furthest airport from Colby Municipal Airport (CBK) is Sir Gaëtan Duval Airport (RRG), which is located 10,792 miles (17,368 kilometers) away in Rodrigues Island, Mauritius.
Facts about Roundup Airport (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.
- The closest airport to Roundup Airport (RPX) is Billings Logan International Airport (BIL), which is located 46 miles (74 kilometers) S of RPX.
- Roundup Airport (RPX) has 2 runways.




