Nonstop flight route between Kelso, Washington, United States and O'Neill, Nebraska, United States:
Departure Airport:
 
    Arrival Airport:
 
    Distance from KLS to ONL:
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- About this route
- KLS Airport Information
- ONL Airport Information
- Facts about KLS
- Facts about ONL
- 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 ONL
- List of Nearest Airports to ONL
- Map of Furthest Airports from ONL
- List of Furthest Airports from ONL
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and O'Neill Municipal Airport (ONL), O'Neill, Nebraska, United States would travel a Great Circle distance of 1,219 miles (or 1,961 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 O'Neill Municipal 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: | ONL / KONL | 
| Airport Names: | 
 | 
| Location: | O'Neill, Nebraska, United States | 
| GPS Coordinates: | 42°28'9"N by 98°41'13"W | 
| Area Served: | O'Neill, Nebraska | 
| Operator/Owner: | O'Neill Airport Authority | 
| Airport Type: | Public | 
| Elevation: | 2031 feet (619 meters) | 
| # of Runways: | 1 | 
| View all routes: | Routes from ONL | 
| More Information: | ONL Maps & Info | 
Facts about Southwest Washington Regional Airport (KLS):
- 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.
- 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.
- Kelso-Longview Airport opened in May 1941 on 109 acres of a nearby dairy farm, as a training field for amateur pilots, and has since become a regional transportation center for southwest Washington.
- 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 O'Neill Municipal Airport (ONL):
- The field is named after John L.
- O'Neill Municipal covers an area of 316 acres at an elevation of 2,031 feet above mean sea level.
- O'Neill Municipal Airport (ONL) currently has only 1 runway.
- In addition to being known as "O'Neill Municipal Airport", another name for ONL is "John L. Baker Field".
- The furthest airport from O'Neill Municipal Airport (ONL) is Sir Gaëtan Duval Airport (RRG), which is located 10,551 miles (16,980 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to O'Neill Municipal Airport (ONL) is Ainsworth Regional Airport (ANW), which is located 67 miles (108 kilometers) W of ONL.




