Nonstop flight route between Waterfall, Alaska, United States and Kelso, Washington, United States:
Departure Airport:
(55°17'47"N by 133°14'35"W)
Arrival Airport:
(46°7'5"N by 122°53'53"W)
Distance from KWF to KLS:
777.38 miles (1,251.07 km)
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- About this route
- KWF Airport Information
- KLS Airport Information
- Facts about KWF
- Facts about KLS
- Map of Nearest Airports to KWF
- List of Nearest Airports to KWF
- Map of Furthest Airports from KWF
- List of Furthest Airports from KWF
- Map of Nearest Airports to KLS
- List of Nearest Airports to KLS
- Map of Furthest Airports from KLS
- List of Furthest Airports from KLS
About this route:
A direct, nonstop flight between Waterfall Seaplane Base (KWF), Waterfall, Alaska, United States and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 777 miles (or 1,251 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 Waterfall Seaplane Base and Southwest Washington Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KWF / |
| Airport Name: | Waterfall Seaplane Base |
| Location: | Waterfall, Alaska, United States |
| GPS Coordinates: | 55°17'47"N by 133°14'35"W |
| Area Served: | Waterfall, Alaska |
| Operator/Owner: | Waterfall Cannery Resort |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from KWF |
| More Information: | KWF Maps & Info |
Arrival 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 |
Facts about Waterfall Seaplane Base (KWF):
- The closest airport to Waterfall Seaplane Base (KWF) is Craig Seaplane Base (CGA), which is located only 13 miles (21 kilometers) NNE of KWF.
- Because of Waterfall Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Waterfall Seaplane Base 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.
- Waterfall Seaplane Base (KWF) currently has only 1 runway.
- The furthest airport from Waterfall Seaplane Base (KWF) is Port Alfred Airport (AFD), which is located 10,657 miles (17,150 kilometers) away in Port Alfred, South Africa.
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.
- 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 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.
- Southwest Washington Regional Airport (KLS) currently has only 1 runway.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 13.16 miles (21.17 km) NNE | Craig Seaplane Base (CGA) | Craig, Alaska, United States |     |
| 2 | 17.49 miles (28.14 km) ESE | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 3 | 20.61 miles (33.17 km) NNE | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 4 | 27.77 miles (44.70 km) ENE | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 38.24 miles (61.54 km) N | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 6 | 38.70 miles (62.28 km) NE | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 7 | 44.40 miles (71.45 km) N | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 8 | 52.13 miles (83.90 km) NNE | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 9 | 56.85 miles (91.50 km) N | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 10 | 60.36 miles (97.14 km) E | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 11 | 62.20 miles (100.10 km) E | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 12 | 66.63 miles (107.23 km) E | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 13 | 68.24 miles (109.82 km) ESE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 14 | 72.75 miles (117.07 km) N | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| 15 | 74.40 miles (119.74 km) NNW | Point Baker Seaplane Base (KPB) | Point Baker, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,656.69 miles (17,150.25 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,649.73 miles (17,139.04 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,648.00 miles (17,136.25 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,574.28 miles (17,017.62 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,566.86 miles (17,005.68 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,559.79 miles (16,994.29 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,501.66 miles (16,900.74 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,489.40 miles (16,881.02 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,468.04 miles (16,846.63 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,462.85 miles (16,838.29 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,452.70 miles (16,821.95 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,451.29 miles (16,819.68 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,441.39 miles (16,803.74 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 14 | 10,437.97 miles (16,798.24 km) SSE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,430.02 miles (16,785.44 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 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 | |