Nonstop flight route between Derby, Western Australia, Australia and Thorne Bay, Alaska, United States:
Departure Airport:
(17°22'12"S by 123°39'38"E)
Arrival Airport:
(55°41'17"N by 132°32'12"W)
Distance from DRB to KTB:
7,739.89 miles (12,456.12 km)
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Jump to:
- About this route
- DRB Airport Information
- KTB Airport Information
- Facts about DRB
- Facts about KTB
- Map of Nearest Airports to DRB
- List of Nearest Airports to DRB
- Map of Furthest Airports from DRB
- List of Furthest Airports from DRB
- 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 Derby Airport (DRB), Derby, Western Australia, Australia and Thorne Bay Seaplane Base (KTB), Thorne Bay, Alaska, United States would travel a Great Circle distance of 7,740 miles (or 12,456 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 large distance between Derby Airport and Thorne Bay Seaplane Base, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Derby Airport and Thorne Bay Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | DRB / YDBY |
| Airport Name: | Derby Airport |
| Location: | Derby, Western Australia, Australia |
| GPS Coordinates: | 17°22'12"S by 123°39'38"E |
| Operator/Owner: | Shire of Derby/West Kimberley |
| Airport Type: | Public |
| Elevation: | 24 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DRB |
| More Information: | DRB 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 Derby Airport (DRB):
- Because of Derby Airport's relatively low elevation of 24 feet, planes can take off or land at Derby 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.
- The furthest airport from Derby Airport (DRB) is Pointe-à-Pitre Le Raizet Airport (PTP), which is nearly antipodal to Derby Airport (meaning Derby Airport is almost on the exact opposite side of the Earth from Pointe-à-Pitre Le Raizet Airport), and is located 12,085 miles (19,449 kilometers) away in Pointe-à-Pitre, Guadeloupe.
- Derby Airport (DRB) currently has only 1 runway.
- The closest airport to Derby Airport (DRB) is Broome International Airport (BME), which is located 102 miles (165 kilometers) WSW of DRB.
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.
- 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.
- Thorne Bay Seaplane Base has one seaplane landing area designated NW/SE with a water surface measuring 5,000 by 2,000 feet.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 102.48 miles (164.93 km) WSW | Broome International Airport (BME) | Broome, Western Australia, Australia |     |
| 2 | 136.90 miles (220.32 km) ESE | Fitzroy Crossing Airport (FIZ) | Fitzroy Crossing, Western Australia, Australia | |
| 3 | 265.65 miles (427.52 km) E | Springvale Airport (ZVG) | Springvale, Western Australia, Australia | |
| 4 | 270.40 miles (435.17 km) ESE | Halls Creek Airport (HCQ) | Halls Creek, Western Australia, Australia | |
| 5 | 320.56 miles (515.89 km) E | Argyle Airport (GYL) | Argyle, Western Australia, Australia | |
| 6 | 320.72 miles (516.15 km) SE | Lake Gregory Airport (LGE) | Lake Gregory, Western Australia, Australia | |
| 7 | 341.23 miles (549.15 km) SE | Balgo Hill Airport (BQW) | Balgo Hill, Western Australia, Australia | |
| 8 | 343.82 miles (553.32 km) E | Argyle Downs Airport (AGY) | Argyle Downs, Western Australia, Australia | |
| 9 | 351.83 miles (566.22 km) ENE | East Kimberley Regional Airport (KNX) | Kununurra, Western Australia, Australia | |
| 10 | 389.19 miles (626.34 km) WSW | Port Hedland International Airport (PHE) | Port Hedland, Western Australia, Australia | |
| 11 | 445.68 miles (717.25 km) ENE | Port Keats Airfield (PKT) | Wadeye, Northern Territory, Australia | |
| 12 | 468.33 miles (753.70 km) SW | Barimunya Airport (BYP) | Barimunya, Western Australia, Australia | |
| 13 | 471.24 miles (758.38 km) E | Kalkgurung Airport (KFG) | Daguragu / Kalkaringi, Northern Territory, Australia | |
| 14 | 486.77 miles (783.37 km) SSW | Newman Airport (ZNE) | Newman, Western Australia, Australia | |
| 15 | 490.82 miles (789.90 km) SW | Coolawanyah Station Airport (COY) | Coolawanyah Station, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,085.39 miles (19,449.50 km) ENE | Pointe-à-Pitre Le Raizet Airport (PTP) | Pointe-à-Pitre, Guadeloupe | |
| 2 | 12,084.82 miles (19,448.58 km) ENE | Melville Hall Airport (DOM) | Melville Hall (near Roseau), Dominica | |
| 3 | 12,076.60 miles (19,435.35 km) E | V. C. Bird International Airport (ANU) | St. John's, Antigua, Antigua and Barbuda | |
| 4 | 12,074.75 miles (19,432.38 km) E | Barbuda Codrington Airport (BBQ) | Codrington, Barbuda, Antigua and Barbuda | |
| 5 | 12,074.56 miles (19,432.07 km) ENE | Les Saintes Airport (LSS) | Terre-de-Haut Island, Les Saintes, Guadeloupe | |
| 6 | 12,073.57 miles (19,430.48 km) ENE | Canefield Airport (DCF) | Canefield, Dominica | |
| 7 | 12,073.15 miles (19,429.81 km) NE | Grantley Adams International Airport (BGI) | Bridgetown, Barbados | |
| 8 | 12,072.80 miles (19,429.24 km) ENE | Aimé Césaire Airport (FDF) | Le Lamentin / Fort de France, Martinique | |
| 9 | 12,050.34 miles (19,393.10 km) NE | George F. L. Charles Airport (SLU) | Castries, Saint Lucia | |
| 10 | 12,048.13 miles (19,389.54 km) E | John A. Osborne Airport (MNI) | Montserrat, British Overseas Territories, United Kingdom | |
| 11 | 12,040.09 miles (19,376.59 km) NE | Hewanorra International Airport (UVF) | Vieux-Fort, Saint Lucia | |
| 12 | 12,024.30 miles (19,351.18 km) E | Vance W. Amory International Airport (NEV) | Nevis, Federation of Saint Kitts and Nevis | |
| 13 | 12,016.07 miles (19,337.95 km) E | Robert L. Bradshaw International Airport (SKB) | Basseterre, Saint Kitts and Nevis | |
| 14 | 12,006.94 miles (19,323.25 km) E | Gustaf III Airport Saint Barthélemy Airport St. Jean Airport (SBH) | Gustavia, Saint Barthélemy, Saint Barthélemy | |
| 15 | 12,000.20 miles (19,312.40 km) NE | E.T. Joshua Airport (SVD) | Arno Vale (near Kingstown), Saint Vincent, Saint Vincent and the Grenadines | |
| 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 | |