Nonstop flight route between Kelso, Washington, United States and Sherman/Denison, Texas, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from KLS to PNX:
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- About this route
- KLS Airport Information
- PNX Airport Information
- Facts about KLS
- Facts about PNX
- 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 PNX
- List of Nearest Airports to PNX
- Map of Furthest Airports from PNX
- List of Furthest Airports from PNX
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and North Texas Regional Airport (PNX), Sherman/Denison, Texas, United States would travel a Great Circle distance of 1,621 miles (or 2,609 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 North Texas Regional Airport, 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: | PNX / KGYI | 
| Airport Names: | 
 | 
| Location: | Sherman/Denison, Texas, United States | 
| GPS Coordinates: | 33°42'51"N by 96°40'24"W | 
| Area Served: | Sherman / Denison | 
| Operator/Owner: | Grayson County, Texas | 
| Airport Type: | Public | 
| Elevation: | 749 feet (228 meters) | 
| # of Runways: | 2 | 
| View all routes: | Routes from PNX | 
| More Information: | PNX Maps & Info | 
Facts about Southwest Washington Regional Airport (KLS):
- 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.
- Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
- There is one flight school located at the airport.
- 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.
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
Facts about North Texas Regional Airport (PNX):
- The airport is on the site of Perrin Air Force Base, which was built in 1941 and closed in 1971.
- In addition to being known as "North Texas Regional Airport", other names for PNX include "Perrin Field" and "GYI".
- The closest airport to North Texas Regional Airport (PNX) is Eaker Field (DUA), which is located 22 miles (36 kilometers) NE of PNX.
- Because of North Texas Regional Airport's relatively low elevation of 749 feet, planes can take off or land at North Texas 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.
- North Texas Regional Airport (PNX) has 2 runways.
- The furthest airport from North Texas Regional Airport (PNX) is Sir Gaëtan Duval Airport (RRG), which is located 10,878 miles (17,506 kilometers) away in Rodrigues Island, Mauritius.




