Nonstop flight route between Butte, Montana, United States and Iliamna, Alaska, United States:
Departure Airport:
(45°57'16"N by 112°29'51"W)
Arrival Airport:
(59°45'14"N by 154°54'38"W)
Distance from BTM to ILI:
1,963.56 miles (3,160.04 km)
Share this route:
Jump to:
- About this route
- BTM Airport Information
- ILI Airport Information
- Facts about BTM
- Facts about ILI
- Map of Nearest Airports to BTM
- List of Nearest Airports to BTM
- Map of Furthest Airports from BTM
- List of Furthest Airports from BTM
- Map of Nearest Airports to ILI
- List of Nearest Airports to ILI
- Map of Furthest Airports from ILI
- List of Furthest Airports from ILI
About this route:
A direct, nonstop flight between Bert Mooney Airport (BTM), Butte, Montana, United States and Iliamna Airport (ILI), Iliamna, Alaska, United States would travel a Great Circle distance of 1,964 miles (or 3,160 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 Bert Mooney Airport and Iliamna Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | BTM / KBTM |
| Airport Name: | Bert Mooney Airport |
| Location: | Butte, Montana, United States |
| GPS Coordinates: | 45°57'16"N by 112°29'51"W |
| Area Served: | Butte, Montana |
| Operator/Owner: | Bert Mooney Airport Authority |
| Airport Type: | Public |
| Elevation: | 5550 feet (1,692 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from BTM |
| More Information: | BTM Maps & Info |
Arrival 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 |
Facts about Bert Mooney Airport (BTM):
- Bert Mooney Airport (BTM) has 2 runways.
- The closest airport to Bert Mooney Airport (BTM) is Dillon Airport (DLN), which is located 48 miles (78 kilometers) S of BTM.
- Because of Bert Mooney Airport's high elevation of 5,550 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BTM. Combined with a high temperature, this could make BTM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Bert Mooney Airport (BTM) is Sir Gaëtan Duval Airport (RRG), which is located 10,611 miles (17,077 kilometers) away in Rodrigues Island, Mauritius.
- The airport name was changed in 1972 to honor Bert Mooney, an aviator from Butte who was the first to fly mail into Yellowstone National Park in 1935.
Facts about Iliamna Airport (ILI):
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 48.40 miles (77.89 km) S | Dillon Airport (DLN) | Dillon, Montana, United States |     |
| 2 | 51.31 miles (82.58 km) NNE | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 3 | 65.88 miles (106.03 km) E | Bozeman Yellowstone International Airport (BZN) | Bozeman, Montana, United States | |
| 4 | 88.21 miles (141.95 km) SW | Lemhi County Airport (SMN) | Salmon, Idaho, United States | |
| 5 | 100.23 miles (161.31 km) E | Mission Field (LVM) | Livingston, Montana, United States | |
| 6 | 100.84 miles (162.28 km) NW | Missoula International Airport (MSO) | Missoula, Montana, United States | |
| 7 | 110.22 miles (177.38 km) SE | Yellowstone Airport (WYS) | West Yellowstone, Montana, United States | |
| 8 | 118.30 miles (190.39 km) NNE | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 9 | 123.77 miles (199.19 km) NNE | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 10 | 124.58 miles (200.50 km) S | Dubois Municipal Airport (DBS) | Dubois, Idaho, United States | |
| 11 | 129.54 miles (208.47 km) SW | Challis Airport (CHL) | Challis, Idaho, United States | |
| 12 | 162.76 miles (261.93 km) ENE | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 13 | 169.96 miles (273.52 km) S | Idaho Falls Regional Airport (IDA) | Idaho Falls, Idaho, United States | |
| 14 | 181.06 miles (291.39 km) N | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 15 | 182.55 miles (293.78 km) NNW | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,611.48 miles (17,077.48 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,603.41 miles (17,064.49 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,597.83 miles (17,055.51 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,587.46 miles (17,038.83 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,577.06 miles (17,022.09 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,500.55 miles (16,898.95 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,414.03 miles (16,759.72 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,390.21 miles (16,721.39 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,300.56 miles (16,577.10 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,296.78 miles (16,571.02 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,283.70 miles (16,549.96 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,251.57 miles (16,498.27 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,240.20 miles (16,479.97 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,224.34 miles (16,454.44 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 10,202.20 miles (16,418.81 km) SE | Belo sur Tsiribihina Airport (BMD) | Belo sur Tsiribihina, Madagascar | |
| 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 | |