Nonstop flight route between Thorne Bay, Alaska, United States and Havre, Montana, United States:
Departure Airport:
(55°41'17"N by 132°32'12"W)
Arrival Airport:
(48°32'35"N by 109°45'43"W)
Distance from KTB to HVR:
1,078.21 miles (1,735.21 km)
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- About this route
- KTB Airport Information
- HVR Airport Information
- Facts about KTB
- Facts about HVR
- Map of Nearest Airports to KTB
- List of Nearest Airports to KTB
- Map of Furthest Airports from KTB
- List of Furthest Airports from KTB
- Map of Nearest Airports to HVR
- List of Nearest Airports to HVR
- Map of Furthest Airports from HVR
- List of Furthest Airports from HVR
About this route:
A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and Havre City-County Airport (HVR), Havre, Montana, United States would travel a Great Circle distance of 1,078 miles (or 1,735 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 Thorne Bay Seaplane Base and Havre City-County Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | KTB / |
| Airport Name: | Thorne Bay Seaplane Base |
| Location: | Thorne Bay, Alaska, United States |
| GPS Coordinates: | 55°41'17"N by 132°32'12"W |
| Area Served: | Thorne Bay, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from KTB |
| More Information: | KTB Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | HVR / KHVR |
| Airport Name: | Havre City-County Airport |
| Location: | Havre, Montana, United States |
| GPS Coordinates: | 48°32'35"N by 109°45'43"W |
| Area Served: | Havre, Montana |
| Operator/Owner: | City of Havre & Hill County |
| Airport Type: | Public |
| Elevation: | 2591 feet (790 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from HVR |
| More Information: | HVR Maps & Info |
Facts about Thorne Bay Seaplane Base (KTB):
- Because of Thorne Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Thorne Bay 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.
- Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
- The furthest airport from Thorne Bay Seaplane Base (KTB) is Port Alfred Airport (AFD), which is located 10,618 miles (17,088 kilometers) away in Port Alfred, South Africa.
- The closest airport to Thorne Bay Seaplane Base (KTB) is Hollis Clark Bay Seaplane Base (HYL), which is located only 14 miles (23 kilometers) SSW of KTB.
Facts about Havre City-County Airport (HVR):
- Scheduled air service temporarily ceased on March 8, 2008, when Big Sky Airlines ended operations in bankruptcy.
- Havre City-County Airport is a public use airport located three nautical miles west of the central business district of Havre, a city in Hill County, Montana, United States.
- Havre City-County Airport (HVR) has 2 runways.
- The closest airport to Havre City-County Airport (HVR) is Shelby Airport (SBX), which is located 96 miles (155 kilometers) W of HVR.
- Havre City-County Airport covers an area of 720 acres at an elevation of 2,591 feet above mean sea level.
- The furthest airport from Havre City-County Airport (HVR) is Sir Gaëtan Duval Airport (RRG), which is located 10,411 miles (16,755 kilometers) away in Rodrigues Island, Mauritius.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 14.06 miles (22.63 km) SSW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States |     |
| 2 | 22.34 miles (35.96 km) WSW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 3 | 25.34 miles (40.79 km) NNW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 4 | 27.90 miles (44.90 km) WSW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 5 | 29.09 miles (46.82 km) WNW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| 6 | 35.17 miles (56.60 km) WNW | Tokeen Seaplane Base (TKI) | Tokeen, Alaska, United States | |
| 7 | 35.19 miles (56.63 km) SSW | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 8 | 37.27 miles (59.99 km) NW | North Whale Seaplane Base (WWP) | North Whale Pass, Alaska, United States | |
| 9 | 38.70 miles (62.28 km) SW | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 39.68 miles (63.87 km) SE | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 11 | 41.60 miles (66.95 km) SE | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 12 | 53.80 miles (86.58 km) SE | Metlakatla Seaplane Base (MTM) | Metlakatla, Annette Island, Alaska, United States | |
| 13 | 55.40 miles (89.16 km) N | Wrangell Airport (WRG) | Wrangell, Alaska, United States | |
| 14 | 58.51 miles (94.17 km) SE | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 15 | 60.66 miles (97.62 km) NW | Port Protection Seaplane Base (PPV) | Port Protection, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,618.12 miles (17,088.17 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,611.06 miles (17,076.80 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 3 | 10,609.57 miles (17,074.40 km) SE | East London Airport (ELS) | East London, South Africa | |
| 4 | 10,536.12 miles (16,956.21 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,529.16 miles (16,945.00 km) SSE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,521.15 miles (16,932.11 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,464.33 miles (16,840.66 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,451.86 miles (16,820.59 km) SSE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,430.04 miles (16,785.47 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 10 | 10,425.95 miles (16,778.90 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 11 | 10,414.65 miles (16,760.71 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,413.17 miles (16,758.33 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,403.14 miles (16,742.18 km) SE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 14 | 10,400.12 miles (16,737.33 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 15 | 10,391.75 miles (16,723.87 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 96.47 miles (155.25 km) W | Shelby Airport (SBX) | Shelby, Montana, United States | |
| 2 | 97.38 miles (156.72 km) SW | Malmstrom Air Force Base (GFA) | Great Falls, Montana, United States | |
| 3 | 104.13 miles (167.57 km) S | Lewistown Municipal Airport (LWT) | Lewistown, Montana, United States | |
| 4 | 104.37 miles (167.96 km) SW | Great Falls International Airport (GTF) | Great Falls, Montana, United States | |
| 5 | 110.74 miles (178.22 km) NNW | Medicine Hat Airport (YXH) | Medicine Hat, Alberta, Canada | |
| 6 | 119.57 miles (192.43 km) W | Cut Bank Municipal AirportCut Bank Army Air Field (CTB) | Cut Bank, Montana, United States | |
| 7 | 135.37 miles (217.85 km) NNW | CFB Suffield (YSD) | Suffield, Alberta, Canada | |
| 8 | 146.23 miles (235.34 km) E | Glasgow International Airport (GGW) | Glasgow, Montana, United States | |
| 9 | 152.56 miles (245.52 km) NE | Swift Current Airport (YYN) | Swift Current, Saskatchewan, Canada | |
| 10 | 153.79 miles (247.50 km) SSE | Roundup Airport (RPX) | Roundup, Montana, United States | |
| 11 | 154.74 miles (249.03 km) ESE | Jordan Airport (JDN) | Jordan, Montana, United States | |
| 12 | 156.62 miles (252.05 km) WNW | Lethbridge Airport (YQL) | Lethbridge, Alberta, Canada | |
| 13 | 169.14 miles (272.20 km) SW | Helena Regional Airport (HLN) | Helena, Montana, United States | |
| 14 | 194.84 miles (313.57 km) E | L. M. Clayton Airport (OLF) | Wolf Point, Montana, United States | |
| 15 | 197.47 miles (317.80 km) SSE | Billings Logan International Airport (BIL) | Billings, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,411.36 miles (16,755.42 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,385.68 miles (16,714.09 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,381.13 miles (16,706.76 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 4 | 10,373.20 miles (16,694.00 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 10,359.60 miles (16,672.12 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 6 | 10,286.25 miles (16,554.07 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,194.47 miles (16,406.37 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,171.39 miles (16,369.22 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,085.73 miles (16,231.37 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 10 | 10,080.27 miles (16,222.58 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,068.45 miles (16,203.56 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 12 | 10,031.52 miles (16,144.12 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 13 | 10,027.54 miles (16,137.72 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 14 | 10,020.48 miles (16,126.36 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 15 | 10,012.80 miles (16,114.01 km) E | East London Airport (ELS) | East London, South Africa | |