Nonstop flight route between Kelso, Washington, United States and Ontario, Oregon, United States:
Departure Airport:
(46°7'5"N by 122°53'53"W)
Arrival Airport:
(44°1'9"N by 117°0'47"W)
Distance from KLS to ONO:
321.60 miles (517.57 km)
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Jump to:
- About this route
- KLS Airport Information
- ONO Airport Information
- Facts about KLS
- Facts about ONO
- 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 ONO
- List of Nearest Airports to ONO
- Map of Furthest Airports from ONO
- List of Furthest Airports from ONO
About this route:
A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Ontario Municipal Airport (ONO), Ontario, Oregon, United States would travel a Great Circle distance of 322 miles (or 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 Ontario 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: | ONO / KONO |
| Airport Name: | Ontario Municipal Airport |
| Location: | Ontario, Oregon, United States |
| GPS Coordinates: | 44°1'9"N by 117°0'47"W |
| Area Served: | Ontario, Oregon |
| Operator/Owner: | City of Ontario |
| Airport Type: | Public |
| Elevation: | 2193 feet (668 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ONO |
| More Information: | ONO Maps & Info |
Facts about Southwest Washington Regional Airport (KLS):
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- There is one flight school located at the airport.
- 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 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.
- 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 Ontario Municipal Airport (ONO):
- Ontario Municipal Airport (ONO) currently has only 1 runway.
- The closest airport to Ontario Municipal Airport (ONO) is Boise Airport (BOI), which is located 50 miles (81 kilometers) SE of ONO.
- The furthest airport from Ontario Municipal Airport (ONO) is Tôlanaro Airport (FTU), which is located 10,845 miles (17,454 kilometers) away in Tôlanaro, Madagascar.
- Ontario Municipal Airport is three miles west of Ontario, in Malheur County, Oregon.
- In the year ending July 13, 2010 the airport had 12,930 general aviation aircraft operations, average 35 per day.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 25.20 miles (40.56 km) N | South Lewis County Airport (TDO) | Toledo, Washington, United States |     |
| 2 | 39.34 miles (63.31 km) SSE | Portland International Airport (PDX) | Portland, Oregon, United States | |
| 3 | 39.99 miles (64.36 km) S | Portland-Hillsboro Airport (HIO) | Hillsboro / Portland, Oregon, United States | |
| 4 | 46.01 miles (74.04 km) SSE | Portland-Troutdale Airport (TTD) | Portland, Oregon, United States | |
| 5 | 47.01 miles (75.66 km) W | Astoria Regional Airport (AST) | Astoria, Oregon, United States | |
| 6 | 57.72 miles (92.89 km) ESE | Cascade Locks State Airport (CZK) | Cascade Locks, Oregon, United States | |
| 7 | 58.83 miles (94.67 km) N | Olympia Regional Airport (OLM) | Olympia, Washington, United States | |
| 8 | 68.10 miles (109.59 km) NNE | Gray Army Airfield (GRF) | Tacoma, Washington, United States | |
| 9 | 73.24 miles (117.88 km) NNE | McChord Field/McChord AFB (TCM) | Tacoma, Washington, United States | |
| 10 | 76.87 miles (123.70 km) NW | Bowerman Airport (HQM) | Hoquiam, Washington, United States | |
| 11 | 77.98 miles (125.49 km) N | Sanderson Field (SHN) | Shelton, Washington, United States | |
| 12 | 80.89 miles (130.19 km) N | Tacoma Narrows Airport (TIW) | Tacoma, Washington, United States | |
| 13 | 81.64 miles (131.39 km) SW | Pacific City State Airport (PFC) | Pacific City, Oregon, United States | |
| 14 | 83.66 miles (134.64 km) S | McNary Field (SLE) | Salem, Oregon, United States | |
| 15 | 90.15 miles (145.08 km) ESE | Columbia Gorge Regional Airport (DLS) | The Dalles, Oregon, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,875.78 miles (17,502.83 km) SSE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,805.79 miles (17,390.18 km) SSE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 3 | 10,720.93 miles (17,253.62 km) S | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,691.41 miles (17,206.11 km) S | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,661.62 miles (17,158.17 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,660.63 miles (17,156.58 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 7 | 10,649.46 miles (17,138.61 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 8 | 10,645.98 miles (17,133.01 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 9 | 10,641.31 miles (17,125.48 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 10 | 10,631.92 miles (17,110.37 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 11 | 10,629.07 miles (17,105.79 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 12 | 10,627.57 miles (17,103.37 km) ESE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 13 | 10,620.73 miles (17,092.37 km) ESE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 14 | 10,605.30 miles (17,067.54 km) SSE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 15 | 10,603.83 miles (17,065.16 km) ESE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 50.42 miles (81.14 km) SE | Boise Airport (BOI) | Boise, Idaho, United States | |
| 2 | 68.81 miles (110.75 km) NW | Baker City Municipal Airport (BKE) | Baker City, Oregon, United States | |
| 3 | 75.01 miles (120.72 km) NE | McCall Municipal Airport (MYL) | McCall, Idaho, United States | |
| 4 | 88.37 miles (142.22 km) SE | Mountain Home Air Force Base (MUO) | Mountain Home, Idaho, United States | |
| 5 | 100.36 miles (161.52 km) WNW | Grant County Regional Airport (GCRA) (JDA) | John Day, Oregon, United States | |
| 6 | 100.48 miles (161.71 km) NNW | La Grande/Union County Airport (LGD) | La Grande, Oregon, United States | |
| 7 | 101.26 miles (162.96 km) WSW | Burns Municipal Airport (BNO) | Burns, Oregon, United States | |
| 8 | 108.84 miles (175.16 km) SSW | Rome State Airport (REO) | Rome, Oregon, United States | |
| 9 | 140.20 miles (225.63 km) ESE | Friedman Memorial Airport (SUN) | Hailey, Idaho, United States | |
| 10 | 142.60 miles (229.50 km) ENE | Challis Airport (CHL) | Challis, Idaho, United States | |
| 11 | 146.35 miles (235.53 km) NW | Eastern Oregon Regional Airport (PDT) | Pendleton, Oregon, United States | |
| 12 | 156.32 miles (251.57 km) NNW | Walla Walla Regional AirportWalla Walla Army Air Base (ALW) | Walla Walla, Washington, United States | |
| 13 | 162.71 miles (261.86 km) N | Lewiston-Nez Perce County Airport (LWS) | Lewiston, Idaho, United States | |
| 14 | 165.63 miles (266.56 km) SE | Magic Valley Regional Airport (TWF) | Twin Falls, Idaho, United States | |
| 15 | 166.40 miles (267.80 km) NW | Hermiston Municipal Airport (HES) | Hermiston, Oregon, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,845.45 miles (17,454.02 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,809.81 miles (17,396.66 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,782.18 miles (17,352.19 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 4 | 10,778.62 miles (17,346.46 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,760.32 miles (17,317.02 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 6 | 10,752.14 miles (17,303.85 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,651.39 miles (17,141.71 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,631.69 miles (17,110.00 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,551.48 miles (16,980.91 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,544.91 miles (16,970.35 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,534.01 miles (16,952.81 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,480.26 miles (16,866.30 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,476.44 miles (16,860.15 km) SSE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,467.37 miles (16,845.56 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,447.56 miles (16,813.67 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |