Nonstop flight route between Iliamna, Alaska, United States and Kelso, Washington, United States:
Departure Airport:
(59°45'14"N by 154°54'38"W)
Arrival Airport:
(46°7'5"N by 122°53'53"W)
Distance from ILI to KLS:
1,607.16 miles (2,586.47 km)
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Jump to:
- About this route
- ILI Airport Information
- KLS Airport Information
- Facts about ILI
- Facts about KLS
- Map of Nearest Airports to ILI
- List of Nearest Airports to ILI
- Map of Furthest Airports from ILI
- List of Furthest Airports from ILI
- 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 Iliamna Airport (ILI), Iliamna, Alaska, United States and Southwest Washington Regional Airport (KLS), Kelso, Washington, United States would travel a Great Circle distance of 1,607 miles (or 2,586 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 Iliamna Airport 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: | ILI / PAIL |
| Airport Name: | Iliamna Airport |
| Location: | Iliamna, Alaska, United States |
| GPS Coordinates: | 59°45'14"N by 154°54'38"W |
| Area Served: | Iliamna, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 192 feet (59 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from ILI |
| More Information: | ILI 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 Iliamna Airport (ILI):
- Because of Iliamna Airport's relatively low elevation of 192 feet, planes can take off or land at Iliamna 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.
- Iliamna Airport (ILI) has 4 runways.
- The closest airport to Iliamna Airport (ILI) is Nondalton Airport (NNL), which is located only 16 miles (25 kilometers) N of ILI.
- The furthest airport from Iliamna Airport (ILI) is Port Elizabeth International Airport (PLZ), which is located 10,656 miles (17,149 kilometers) away in Port Elizabeth, South Africa.
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.
- 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 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 covers an area of 110 acres at an elevation of 20 feet above mean sea level.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 15.84 miles (25.49 km) N | Nondalton Airport (NNL) | Nondalton, Alaska, United States |     |
| 2 | 22.49 miles (36.19 km) S | Kokhanok Airport (KNK) | Kokhanok, Alaska, United States | |
| 3 | 27.31 miles (43.96 km) E | Pedro Bay Airport (PDB) | Pedro Bay, Alaska, United States | |
| 4 | 29.75 miles (47.88 km) SSW | Big Mountain Air Force Station (BMX) | Big Mountain, Alaska, United States | |
| 5 | 37.25 miles (59.95 km) NNE | Port Alsworth Airport (PTA) | Port Alsworth, Alaska, United States | |
| 6 | 45.67 miles (73.50 km) SW | Igiugig Airport (IGG) | Igiugig, Alaska, United States | |
| 7 | 53.85 miles (86.66 km) S | Kulik Lake Airport (LKK) | Kulik Lake, Bristol Bay Borough, Alaska, United States | |
| 8 | 80.94 miles (130.25 km) WSW | Levelock Airport (KLL) | Levelock, Alaska, United States | |
| 9 | 81.79 miles (131.63 km) W | Koliganek Airport (KGK) | Koliganek, Alaska, United States | |
| 10 | 88.57 miles (142.54 km) WSW | New Stuyahok Airport (KNW) | New Stuyahok, Alaska, United States | |
| 11 | 93.82 miles (150.98 km) WSW | Ekwok Airport (KEK) | Ekwok, Alaska, United States | |
| 12 | 95.54 miles (153.75 km) NNW | Sparrevohn LRRS Airport (SVW) | Sparrevohn, Alaska, United States | |
| 13 | 96.53 miles (155.35 km) SW | King Salmon Airport (AKN) | King Salmon, Alaska, United States | |
| 14 | 102.61 miles (165.14 km) SW | Naknek Airport (NNK) | Naknek, Alaska, United States | |
| 15 | 103.66 miles (166.82 km) SW | South Naknek Airport (WSN) | South Naknek, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,656.16 miles (17,149.39 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,653.59 miles (17,145.25 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,631.04 miles (17,108.96 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 4 | 10,624.74 miles (17,098.81 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,586.48 miles (17,037.24 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,480.82 miles (16,867.20 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,425.55 miles (16,778.26 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,366.75 miles (16,683.62 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,365.18 miles (16,681.09 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,364.79 miles (16,680.48 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,358.49 miles (16,670.33 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,341.82 miles (16,643.50 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,340.67 miles (16,641.65 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 14 | 10,335.56 miles (16,633.43 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,325.75 miles (16,617.64 km) SSE | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 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 | |