Nonstop flight route between Thorne Bay, Alaska, United States and Lansdowne House, Ontario, Canada:
Departure Airport:
(55°41'17"N by 132°32'12"W)
Arrival Airport:
(52°11'44"N by 87°56'3"W)
Distance from KTB to YLH:
1,797.92 miles (2,893.46 km)
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Jump to:
- About this route
- KTB Airport Information
- YLH Airport Information
- Facts about KTB
- Facts about YLH
- 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 YLH
- List of Nearest Airports to YLH
- Map of Furthest Airports from YLH
- List of Furthest Airports from YLH
About this route:
A direct, nonstop flight between Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States and Lansdowne House Airport (YLH), Lansdowne House, Ontario, Canada would travel a Great Circle distance of 1,798 miles (or 2,893 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 Lansdowne House 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: | YLH / CYLH |
| Airport Name: | Lansdowne House Airport |
| Location: | Lansdowne House, Ontario, Canada |
| GPS Coordinates: | 52°11'44"N by 87°56'3"W |
| Operator/Owner: | Government of Ontario |
| Airport Type: | Public |
| Elevation: | 834 feet (254 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from YLH |
| More Information: | YLH Maps & Info |
Facts about Thorne Bay Seaplane Base (KTB):
- 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.
- 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.
- 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 has one seaplane landing area designated NW/SE with a water surface measuring 5,000 by 2,000 feet.
- Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
Facts about Lansdowne House Airport (YLH):
- The closest airport to Lansdowne House Airport (YLH) is Fort Hope Airport (YFH), which is located 44 miles (70 kilometers) S of YLH.
- The furthest airport from Lansdowne House Airport (YLH) is Margaret River Airport (MGV), which is located 10,735 miles (17,277 kilometers) away in Margaret River, Western Australia, Australia.
- Lansdowne House Airport (YLH) currently has only 1 runway.
- Because of Lansdowne House Airport's relatively low elevation of 834 feet, planes can take off or land at Lansdowne House 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.
| 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 | 43.79 miles (70.48 km) S | Fort Hope Airport (YFH) | Fort Hope, Ontario, Canada | |
| 2 | 57.76 miles (92.96 km) NNE | Webequie Airport (YWP) | Webequie, Ontario, Canada | |
| 3 | 94.23 miles (151.65 km) ESE | Ogoki Post Airport (YOG) | Ogoki Post, Ontario, Canada | |
| 4 | 96.48 miles (155.27 km) NNW | Kasabonika Airport (XKS) | Kasabonika First Nation, Ontario, Canada | |
| 5 | 98.40 miles (158.37 km) NW | Kingfisher Lake Airport (KIF) | Kingfisher Lake, Ontario, Canada | |
| 6 | 110.27 miles (177.46 km) WSW | Pickle Lake Airport (YPL) | Pickle Lake, Ontario, Canada | |
| 7 | 138.24 miles (222.47 km) SSW | Armstrong Airport (YYW) | Armstrong, Thunder Bay District, Ontario, Canada | |
| 8 | 138.63 miles (223.10 km) NW | Big Trout Lake Airport (YTL) | Big Trout Lake, Ontario, Canada | |
| 9 | 149.00 miles (239.79 km) SSE | Nakina Airport (YQN) | Nakina, Ontario, Canada | |
| 10 | 150.98 miles (242.97 km) WNW | Round Lake (Weagamow Lake) Airport (ZRJ) | Round Lake, Ontario, Canada | |
| 11 | 168.74 miles (271.55 km) W | Cat Lake Airport (YAC) | Cat Lake, Ontario, Canada | |
| 12 | 172.51 miles (277.63 km) SSE | Geraldton (Greenstone Regional) Airport (YGQ) | Geraldton, Ontario, Canada | |
| 13 | 177.27 miles (285.29 km) NW | Bearskin Lake Airport (XBE) | Bearskin Lake, Ontario, Canada | |
| 14 | 181.53 miles (292.15 km) WNW | Muskrat Dam Airport (MSA) | Muskrat Dam, Ontario, Canada | |
| 15 | 212.24 miles (341.57 km) NW | Sachigo Lake Airport (ZPB) | Sachigo Lake, Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,735.47 miles (17,277.03 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,719.42 miles (17,251.19 km) SW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 3 | 10,711.84 miles (17,238.99 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 4 | 10,698.55 miles (17,217.61 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 5 | 10,685.20 miles (17,196.12 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 6 | 10,636.14 miles (17,117.16 km) SW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 7 | 10,611.23 miles (17,077.08 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 8 | 10,605.44 miles (17,067.76 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 10,593.61 miles (17,048.72 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 10,526.85 miles (16,941.29 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,485.87 miles (16,875.34 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 12 | 10,447.34 miles (16,813.32 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 13 | 10,431.73 miles (16,788.19 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,403.74 miles (16,743.15 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,393.44 miles (16,726.57 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |