Nonstop flight route between Des Moines, Iowa, United States and Thorne Bay, Alaska, United States:
Departure Airport:
(41°32'2"N by 93°39'47"W)
Arrival Airport:
(55°41'17"N by 132°32'12"W)
Distance from DSM to KTB:
1,990.85 miles (3,203.95 km)
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- About this route
- DSM Airport Information
- KTB Airport Information
- Facts about DSM
- Facts about KTB
- Map of Nearest Airports to DSM
- List of Nearest Airports to DSM
- Map of Furthest Airports from DSM
- List of Furthest Airports from DSM
- Map of Nearest Airports to KTB
- List of Nearest Airports to KTB
- Map of Furthest Airports from KTB
- List of Furthest Airports from KTB
About this route:
A direct, nonstop flight between Des Moines International Airport (DSM), Des Moines, Iowa, United States and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 1,991 miles (or 3,204 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 Des Moines International Airport and Thorne Bay Seaplane Base, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | DSM / KDSM |
| Airport Name: | Des Moines International Airport |
| Location: | Des Moines, Iowa, United States |
| GPS Coordinates: | 41°32'2"N by 93°39'47"W |
| Area Served: | Des Moines, Iowa |
| Operator/Owner: | City of Des Moines |
| Airport Type: | Public |
| Elevation: | 958 feet (292 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from DSM |
| More Information: | DSM Maps & Info |
Arrival 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 |
Facts about Des Moines International Airport (DSM):
- The Des Moines Terminal has 2 concourses.
- In addition to work inside the passenger terminal, the airport is building a rental car facility and new parking facilities.
- Because of Des Moines International Airport's relatively low elevation of 958 feet, planes can take off or land at Des Moines International 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.
- Interior renovation work began in 2009 on the airport and concluded in 2010.
- Des Moines International Airport (DSM) has 2 runways.
- The airport hosts the Des Moines Air National Guard Base and 132d Fighter Wing of the Iowa Air National Guard.
- The furthest airport from Des Moines International Airport (DSM) is Margaret River Airport (MGV), which is located 10,789 miles (17,363 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Des Moines International Airport (DSM) is Ankeny Regional Airport (IKV), which is located only 12 miles (19 kilometers) NNE of DSM.
Facts about Thorne Bay Seaplane Base (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 is a state-owned public-use seaplane base serving Thorne Bay, a community in the Prince of Wales-Hyder Census Area of the U.S.
- 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.
- Thorne Bay Seaplane Base (KTB) currently has only 1 runway.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11.96 miles (19.24 km) NNE | Ankeny Regional Airport (IKV) | Ankeny, Iowa, United States |     |
| 2 | 31.72 miles (51.05 km) N | Ames Municipal Airport (AMW) | Ames, Iowa, United States | |
| 3 | 32.71 miles (52.64 km) NW | Perry Municipal Airport (PRO) | Perry, Iowa, United States | |
| 4 | 34.53 miles (55.57 km) ENE | Newton Municipal Airport (TNU) | Newton, Iowa, United States | |
| 5 | 36.87 miles (59.33 km) NNW | Boone Municipal Airport (BNW) | Boone, Iowa, United States | |
| 6 | 50.75 miles (81.68 km) SW | Creston Municipal Airport (CSQ) | Creston, Iowa, United States | |
| 7 | 63.25 miles (101.79 km) N | Webster City Municipal Airport (EBS) | Webster City, Iowa, United States | |
| 8 | 67.94 miles (109.34 km) WNW | Arthur N. Neu Airport (CIN) | Carroll, Iowa, United States | |
| 9 | 69.61 miles (112.03 km) ESE | Ottumwa Regional Airport (OTM) | Ottumwa, Iowa, United States | |
| 10 | 72.18 miles (116.16 km) W | Atlantic Municipal Airport (AIO) | Atlantic, Iowa, United States | |
| 11 | 75.34 miles (121.25 km) NNW | Fort Dodge Regional Airport (FOD) | Fort Dodge, Iowa, United States | |
| 12 | 88.26 miles (142.04 km) NNW | Humboldt Municipal Airport (HUD) | Humboldt, Iowa, United States | |
| 13 | 93.36 miles (150.25 km) ESE | Fairfield Municipal Airport (FFL) | Fairfield, Iowa, United States | |
| 14 | 93.88 miles (151.09 km) WNW | Denison Municipal Airport (DNS) | Denison, Iowa, United States | |
| 15 | 95.89 miles (154.31 km) NE | Waterloo Regional Airport (Livingston Betsworth Field) (ALO) | Waterloo, Iowa, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,788.59 miles (17,362.52 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,765.59 miles (17,325.49 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,745.72 miles (17,293.52 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,741.55 miles (17,286.81 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,702.16 miles (17,223.42 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,688.11 miles (17,200.80 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,679.91 miles (17,187.60 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 10,678.27 miles (17,184.97 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,663.64 miles (17,161.42 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,650.61 miles (17,140.45 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 10,620.66 miles (17,092.25 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,595.70 miles (17,052.09 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,572.70 miles (17,015.07 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,567.93 miles (17,007.39 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,547.73 miles (16,974.88 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 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 | |