Nonstop flight route between Kelso, Washington, United States and Trenton, Ontario, Canada:
Departure Airport:
 
    Arrival Airport:
 
    Distance from KLS to YTR:
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- About this route
- KLS Airport Information
- YTR Airport Information
- Facts about KLS
- Facts about YTR
- Map of Nearest Airports to KLS
- List of Nearest Airports to KLS
- Map of Furthest Airports from KLS
- List of Furthest Airports from KLS
- Map of Nearest Airports to YTR
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- List of Furthest Airports from YTR
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Canadian Forces Base Trenton (YTR), Trenton, Ontario, Canada would travel a Great Circle distance of 2,186 miles (or 3,518 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 Southwest Washington Regional Airport and Canadian Forces Base Trenton, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KLS / KKLS | 
| Airport Name: | Southwest Washington Regional Airport | 
| Location: | Kelso, Washington, United States | 
| GPS Coordinates: | 46°7'5"N by 122°53'53"W | 
| Area Served: | Longview-Kelso Metropolitan Area | 
| Operator/Owner: | City of Kelso | 
| Airport Type: | Public | 
| Elevation: | 20 feet (6 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from KLS | 
| More Information: | KLS Maps & Info | 
Arrival Airport Information:
| IATA / ICAO Codes: | YTR / CYTR | 
| Airport Names: | 
 | 
| Location: | Trenton, Ontario, Canada | 
| GPS Coordinates: | 44°7'8"N by 77°31'41"W | 
| Operator/Owner: | The Queen in Right of Canada | 
| Airport Type: | Military | 
| Elevation: | 283 feet (86 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from YTR | 
| More Information: | YTR Maps & Info | 
Facts about Southwest Washington Regional Airport (KLS):
- Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
- The airport has one passenger terminal consisting of 12 gates.
- Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington Regional 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.
- The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
Facts about Canadian Forces Base Trenton (YTR):
- The furthest airport from Canadian Forces Base Trenton (YTR) is Margaret River Airport (MGV), which is located 11,462 miles (18,446 kilometers) away in Margaret River, Western Australia, Australia.
- In addition to being known as "Canadian Forces Base Trenton", another name for YTR is "Trenton Airport".
- Because of Canadian Forces Base Trenton's relatively low elevation of 283 feet, planes can take off or land at Canadian Forces Base Trenton 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.
- Canadian Forces Base Trenton (YTR) currently has only 1 runway.
- CFB Trenton plays a key support role for the National Search and Rescue Program, being home to Joint Rescue Coordination Centre Trenton which is jointly staffed by the RCAF and Canadian Coast Guard personnel who have responsibility for coordinating aircraft and marine rescue incidents in central and Arctic Canada.
- The closest airport to Canadian Forces Base Trenton (YTR) is Peterborough Airport (YPQ), which is located 42 miles (68 kilometers) W of YTR.
- A 17,500 m2 Electrical and Mechanical Engineering and transportation garage valued at $75 million is being built.
- The recapitalization of the northeast ramp was completed in summer 2008, and reconstruction of the southeast ramp was completed in the summer of 2009.
- In 1929, 960 acres of farmland near Trenton were purchased by the federal government to establish a Royal Canadian Air Force station to be called RCAF Station Trenton.




