Nonstop flight route between Kelso, Washington, United States and Sukhothai, Thailand:
Departure Airport:

Arrival Airport:

Distance from KLS to THS:
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- About this route
- KLS Airport Information
- THS Airport Information
- Facts about KLS
- Facts about THS
- 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 THS
- List of Nearest Airports to THS
- Map of Furthest Airports from THS
- List of Furthest Airports from THS
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Sukhothai Airport (THS), Sukhothai, Thailand would travel a Great Circle distance of 7,312 miles (or 11,768 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 large distance between Southwest Washington Regional Airport and Sukhothai Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Southwest Washington Regional Airport and Sukhothai Airport. You'll see that it will travel the same route of the red line on this map!
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: | THS / VTPO |
Airport Name: | Sukhothai Airport |
Location: | Sukhothai, Thailand |
GPS Coordinates: | 17°14'16"N by 99°49'5"E |
Area Served: | Tambon Khlong Krachong, Tambon Yan Yao and Tambon Tha Thong, Amphoe Sawankhalok, Sukhothai, Thailand |
Operator/Owner: | Bangkok Airways |
Airport Type: | Public |
Elevation: | 179 feet (55 meters) |
# of Runways: | 1 |
View all routes: | Routes from THS |
More Information: | THS Maps & Info |
Facts about Southwest Washington Regional Airport (KLS):
- 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.
- 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 (KLS) currently has only 1 runway.
- Southwest Washington Regional Airport is a city-owned public-use airport located two nautical miles southeast of the central business district of Kelso, in Cowlitz County, Washington, United States.
- 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.
- 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.
Facts about Sukhothai Airport (THS):
- The closest airport to Sukhothai Airport (THS) is Tak Airport (TKT), which is located 44 miles (71 kilometers) WSW of THS.
- Because of Sukhothai Airport's relatively low elevation of 179 feet, planes can take off or land at Sukhothai 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.
- Sukhothai Airport (THS) currently has only 1 runway.
- The furthest airport from Sukhothai Airport (THS) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is nearly antipodal to Sukhothai Airport (meaning Sukhothai Airport is almost on the exact opposite side of the Earth from Capitán FAP Renán Elías Olivera International Airport), and is located 12,079 miles (19,440 kilometers) away in Pisco, Peru.