Nonstop flight route between Spencer, Iowa, United States and Barter Island, Alaska, United States:
Departure Airport:
(43°9'56"N by 95°12'10"W)
Arrival Airport:
(70°8'2"N by 143°34'54"W)
Distance from SPW to BTI:
2,494.03 miles (4,013.74 km)
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- About this route
- SPW Airport Information
- BTI Airport Information
- Facts about SPW
- Facts about BTI
- Map of Nearest Airports to SPW
- List of Nearest Airports to SPW
- Map of Furthest Airports from SPW
- List of Furthest Airports from SPW
- Map of Nearest Airports to BTI
- List of Nearest Airports to BTI
- Map of Furthest Airports from BTI
- List of Furthest Airports from BTI
About this route:
A direct, nonstop flight between Spencer Municipal Airport (SPW), Spencer, Iowa, United States and Barter Island LRRS Airport (BTI), Barter Island, Alaska, United States would travel a Great Circle distance of 2,494 miles (or 4,014 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 Spencer Municipal Airport and Barter Island LRRS Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | SPW / KSPW |
| Airport Names: |
|
| Location: | Spencer, Iowa, United States |
| GPS Coordinates: | 43°9'56"N by 95°12'10"W |
| Area Served: | Spencer, Iowa |
| Operator/Owner: | City of Spencer |
| Airport Type: | Public |
| Elevation: | 1339 feet (408 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SPW |
| More Information: | SPW Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | BTI / PABA |
| Airport Names: |
|
| Location: | Barter Island, Alaska, United States |
| GPS Coordinates: | 70°8'2"N by 143°34'54"W |
| Operator/Owner: | North Slope Borough |
| Airport Type: | Public / Military |
| Elevation: | 2 feet (1 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from BTI |
| More Information: | BTI Maps & Info |
Facts about Spencer Municipal Airport (SPW):
- In addition to being known as "Spencer Municipal Airport", another name for SPW is "Northwest Iowa Regional AirportSpencer Army Airfield".
- The closest airport to Spencer Municipal Airport (SPW) is Jackson Municipal Airport (MJQ), which is located 35 miles (57 kilometers) NNE of SPW.
- Spencer Municipal Airport (SPW) has 2 runways.
- The furthest airport from Spencer Municipal Airport (SPW) is Margaret River Airport (MGV), which is located 10,691 miles (17,206 kilometers) away in Margaret River, Western Australia, Australia.
- Spencer Municipal Airport, also known as Northwest Iowa Regional Airport, is a public airport located three miles northwest of the central business district of Spencer, a city in Clay County, Iowa, United States.
Facts about Barter Island LRRS Airport (BTI):
- Barter Island controlled nine manned stations, four of them being classified as "auxiliary" sites and five "intermediate" stations.
- In addition to being known as "Barter Island LRRS Airport", another name for BTI is "Barter Island LRRS BAR-MAIN".
- The radar station was upgraded with an AN/FPS-117 minimally attended Long Range surveillance radar in the winter of 1990.
- With the signing of the North American Air Defence Modernization agreement at the "Shamrock Summit" between Prime Minister Mulroney and President Reagan in Quebec City on 18 March 1985, the DEW Line began its eventual upgrading and transition becoming the North Warning System of today.
- The furthest airport from Barter Island LRRS Airport (BTI) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,003 miles (16,099 kilometers) away in Villa Las Estrellas, Antarctica.
- Because of Barter Island LRRS Airport's relatively low elevation of 2 feet, planes can take off or land at Barter Island LRRS 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.
- Barter Island LRRS Airport (BTI) currently has only 1 runway.
- The closest airport to Barter Island LRRS Airport (BTI) is Deadhorse Airport (SCC), which is located 115 miles (184 kilometers) W of BTI.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.19 miles (56.63 km) NNE | Jackson Municipal Airport (MJQ) | Jackson, Minnesota, United States |     |
| 2 | 39.32 miles (63.27 km) S | Storm Lake Municipal Airport (SLB) | Storm Lake, Iowa, United States | |
| 3 | 45.06 miles (72.52 km) WSW | Orange City Municipal Airport (ORC) | Orange City, Iowa, United States | |
| 4 | 47.33 miles (76.18 km) E | Algona Municipal Airport (AXG) | Algona, Iowa, United States | |
| 5 | 51.51 miles (82.90 km) NE | Fairmont Municipal Airport (FRM) | Fairmont, Minnesota, United States | |
| 6 | 56.79 miles (91.39 km) ESE | Humboldt Municipal Airport (HUD) | Humboldt, Iowa, United States | |
| 7 | 56.80 miles (91.41 km) WSW | Le Mars Municipal Airport (LRJ) | Le Mars, Iowa, United States | |
| 8 | 66.51 miles (107.03 km) SE | Fort Dodge Regional Airport (FOD) | Fort Dodge, Iowa, United States | |
| 9 | 79.65 miles (128.19 km) E | Forest City Municipal Airport (FXY) | Forest City, Iowa, United States | |
| 10 | 79.81 miles (128.44 km) SW | Sioux Gateway Airport (SUX) | Sioux City, Iowa, United States | |
| 11 | 80.16 miles (129.00 km) SSE | Arthur N. Neu Airport (CIN) | Carroll, Iowa, United States | |
| 12 | 81.95 miles (131.89 km) S | Denison Municipal Airport (DNS) | Denison, Iowa, United States | |
| 13 | 82.48 miles (132.74 km) WNW | Sioux Falls Regional Airport (FSD) | Sioux Falls, South Dakota, United States | |
| 14 | 84.31 miles (135.69 km) SE | Webster City Municipal Airport (EBS) | Webster City, Iowa, United States | |
| 15 | 87.06 miles (140.10 km) NNE | New Ulm Municipal Airport (ULM) | New Ulm, Minnesota, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,691.23 miles (17,205.83 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,667.85 miles (17,168.20 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,651.23 miles (17,141.45 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,643.20 miles (17,128.52 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,599.13 miles (17,057.60 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,590.48 miles (17,043.68 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,585.91 miles (17,036.33 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,575.73 miles (17,019.94 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,556.49 miles (16,988.99 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,554.89 miles (16,986.40 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,507.53 miles (16,910.19 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,479.39 miles (16,864.90 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,462.67 miles (16,837.99 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,455.35 miles (16,826.21 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,426.86 miles (16,780.37 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 114.54 miles (184.33 km) W | Deadhorse Airport (SCC) | Deadhorse, Alaska, United States | |
| 2 | 141.17 miles (227.19 km) W | Ugnu-Kuparuk Airport (UUK) | Kuparuk, Alaska, United States | |
| 3 | 147.91 miles (238.03 km) SSW | Arctic Village Airport (ARC) | Arctic Village, Alaska, United States | |
| 4 | 172.50 miles (277.61 km) W | Alpine Airstrip (DQH) | Deadhorse, Alaska, United States | |
| 5 | 173.95 miles (279.95 km) W | Nuiqsut Airport (NUI) | Nuiqsut, Alaska, United States | |
| 6 | 183.91 miles (295.97 km) SW | Galbraith Lake Airport (GBH) | Galbraith Lake, Alaska, United States | |
| 7 | 200.12 miles (322.06 km) SSE | Old Crow Airport (YOC) | Old Crow, Yukon, Canada | |
| 8 | 211.00 miles (339.58 km) W | Umiat Airport (UMT) | Umiat, Alaska, United States | |
| 9 | 218.89 miles (352.27 km) SW | Chandalar Lake Airport (WCR) | Chandalar Lake, Alaska, United States | |
| 10 | 227.03 miles (365.37 km) SSW | Venetie Airport (VEE) | Venetie, Alaska, United States | |
| 11 | 228.67 miles (368.01 km) WNW | Point Lonely Short Range Radar Site (LNI) | Lonely, North Slope Borough, Alaska, United States | |
| 12 | 241.09 miles (388.00 km) S | Chalkyitsik Airport (CIK) | Chalkyitsik, Alaska, United States | |
| 13 | 243.51 miles (391.88 km) WSW | Anaktuvuk Pass Airport (AKP) | Anaktuvuk Pass, Alaska, United States | |
| 14 | 248.25 miles (399.53 km) ESE | Aklavik/Freddie Carmichael Airport (LAK) | Aklavik, Northwest Territories, Canada | |
| 15 | 249.67 miles (401.81 km) S | Fort Yukon Airport (FYU) | Fort Yukon, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,003.30 miles (16,098.71 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 2 | 9,905.78 miles (15,941.77 km) SSE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 9,884.70 miles (15,907.85 km) SSE | George Airport (GRJ) | George, South Africa | |
| 4 | 9,883.49 miles (15,905.90 km) SSE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 9,852.58 miles (15,856.15 km) SSE | East London Airport (ELS) | East London, South Africa | |
| 6 | 9,848.73 miles (15,849.96 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 7 | 9,753.95 miles (15,697.41 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 9,712.97 miles (15,631.47 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 9,639.77 miles (15,513.67 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 9,633.53 miles (15,503.63 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 11 | 9,629.62 miles (15,497.32 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 12 | 9,629.49 miles (15,497.12 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 9,629.16 miles (15,496.59 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 14 | 9,627.06 miles (15,493.21 km) SSE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 9,605.25 miles (15,458.12 km) SSE | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |