Nonstop flight route between Basankusu, Democratic Republic of the Congo and Metlakatla, Annette Island, Alaska, United States:
Departure Airport:
(1°13'28"N by 19°47'20"E)
Arrival Airport:
(55°7'51"N by 131°34'41"W)
Distance from BSU to MTM:
8,219.05 miles (13,227.25 km)
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- About this route
- BSU Airport Information
- MTM Airport Information
- Facts about BSU
- Facts about MTM
- Map of Nearest Airports to BSU
- List of Nearest Airports to BSU
- Map of Furthest Airports from BSU
- List of Furthest Airports from BSU
- Map of Nearest Airports to MTM
- List of Nearest Airports to MTM
- Map of Furthest Airports from MTM
- List of Furthest Airports from MTM
About this route:
A direct, nonstop flight between Basankusu Airport (BSU), Basankusu, Democratic Republic of the Congo and Metlakatla Seaplane Base (MTM), Metlakatla, Annette Island, Alaska, United States would travel a Great Circle distance of 8,219 miles (or 13,227 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 Basankusu Airport and Metlakatla 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 Basankusu Airport and Metlakatla 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: | BSU / FZEN |
| Airport Name: | Basankusu Airport |
| Location: | Basankusu, Democratic Republic of the Congo |
| GPS Coordinates: | 1°13'28"N by 19°47'20"E |
| Airport Type: | Public |
| Elevation: | 1217 feet (371 meters) |
| View all routes: | Routes from BSU |
| More Information: | BSU Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | MTM / PAMM |
| Airport Name: | Metlakatla Seaplane Base |
| Location: | Metlakatla, Annette Island, Alaska, United States |
| GPS Coordinates: | 55°7'51"N by 131°34'41"W |
| Area Served: | Metlakatla, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from MTM |
| More Information: | MTM Maps & Info |
Facts about Basankusu Airport (BSU):
- The furthest airport from Basankusu Airport (BSU) is Cassidy International Airport (CXI), which is nearly antipodal to Basankusu Airport (meaning Basankusu Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,140 miles (19,537 kilometers) away in Christmas Island, Kiribati.
- The closest airport to Basankusu Airport (BSU) is Impfondo Airport (ION), which is located 123 miles (198 kilometers) WNW of BSU.
Facts about Metlakatla Seaplane Base (MTM):
- Because of Metlakatla Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Metlakatla 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.
- Metlakatla Seaplane Base is a state owned, public use seaplane base located in Metlakatla, a community on Annette Island in the Prince of Wales-Hyder Census Area of the U.S.
- The furthest airport from Metlakatla Seaplane Base (MTM) is Port Alfred Airport (AFD), which is located 10,621 miles (17,093 kilometers) away in Port Alfred, South Africa.
- The closest airport to Metlakatla Seaplane Base (MTM) is Annette Island Airport (ANN), which is located only 6 miles (10 kilometers) S of MTM.
- Metlakatla Seaplane Base (MTM) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 123.06 miles (198.05 km) WNW | Impfondo Airport (ION) | Impfondo, Republic of the Congo |     |
| 2 | 128.71 miles (207.14 km) SE | Boende Airport (BNB) | Boende, Democratic Republic of the Congo | |
| 3 | 132.83 miles (213.77 km) SW | Mbandaka Airport (MDK) | Mbandaka, Democratic Republic of the Congo | |
| 4 | 134.84 miles (217.00 km) ENE | Lisala Airport (LIQ) | Lisala, Democratic Republic of the Congo | |
| 5 | 154.35 miles (248.40 km) NW | Bétou Airport (BTB) | Betou, Republic of the Congo | |
| 6 | 192.67 miles (310.08 km) SSW | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo | |
| 7 | 224.70 miles (361.62 km) NNE | Gbadolite Airport (BDT) | Gbadolite, Democratic Republic of the Congo | |
| 8 | 236.15 miles (380.04 km) NNW | Bangui M'Poko International Airport (BGF) | Bangui, Central African Republic | |
| 9 | 242.51 miles (390.29 km) SSW | Inongo Airport (INO) | Inongo, Democratic Republic of the Congo | |
| 10 | 291.66 miles (469.39 km) WSW | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 11 | 293.84 miles (472.89 km) SE | Ikela Airport (IKL) | Ikela, Democratic Republic of the Congo | |
| 12 | 302.98 miles (487.59 km) WSW | Makoua Airport (MKJ) | Makoua, Republic of the Congo | |
| 13 | 308.73 miles (496.86 km) SSW | Nioki Airport (NIO) | Nioki, Democratic Republic of the Congo | |
| 14 | 316.40 miles (509.20 km) NNW | Bossembélé Airport (BEM) | Bossembélé, Central African Republic | |
| 15 | 316.48 miles (509.33 km) WSW | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,139.66 miles (19,536.84 km) NW | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,801.88 miles (18,993.23 km) S | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 3 | 11,635.99 miles (18,726.27 km) E | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 4 | 11,340.55 miles (18,250.81 km) SE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 5 | 11,336.38 miles (18,244.10 km) SE | Tau Airport (TAV) | Tau, American Samoa | |
| 6 | 11,332.56 miles (18,237.95 km) SE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 7 | 11,284.88 miles (18,161.21 km) SE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 8 | 11,261.28 miles (18,123.23 km) SE | Fagali'i Airport (FGI) | Apia, Samoa | |
| 9 | 11,254.74 miles (18,112.70 km) SSW | Maupiti Airport (MAU) | Maupiti, Leeward Islands, French Polynesia | |
| 10 | 11,249.92 miles (18,104.94 km) SE | Faleolo International Airport (APW) | Apia, Upolu Island, Samoa | |
| 11 | 11,242.55 miles (18,093.09 km) SE | Maota (Salelologa) Airport (MXS) | Maota, Samoa | |
| 12 | 11,238.01 miles (18,085.78 km) SSW | Bora Bora Airport (BOB) | Bora Bora, French Polynesia | |
| 13 | 11,236.43 miles (18,083.24 km) SE | Asau Airport (AAU) | Asau, Samoa | |
| 14 | 11,210.14 miles (18,040.93 km) SW | Mataiva Airport (MVT) | Mataiva, French Polynesia | |
| 15 | 11,198.99 miles (18,022.99 km) SSW | Huahine – Fare Airport (HUH) | Huahine, Society Islands, French Polynesia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.13 miles (9.86 km) S | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 2 | 15.12 miles (24.33 km) NNW | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 3 | 16.28 miles (26.20 km) NNW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 4 | 48.03 miles (77.30 km) WNW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 49.61 miles (79.84 km) W | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 6 | 53.80 miles (86.58 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 7 | 66.24 miles (106.61 km) WNW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 8 | 66.49 miles (107.00 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 9 | 66.63 miles (107.23 km) W | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 73.87 miles (118.89 km) SE | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 11 | 75.56 miles (121.61 km) SE | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 12 | 78.32 miles (126.04 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 13 | 79.35 miles (127.71 km) SSW | Masset Airport (ZMT) | Masset, British Columbia, Canada | |
| 14 | 81.39 miles (130.99 km) NE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 81.45 miles (131.09 km) NW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,621.06 miles (17,092.89 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,614.48 miles (17,082.30 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,611.60 miles (17,077.67 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,543.67 miles (16,968.36 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,539.88 miles (16,962.25 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,516.90 miles (16,925.27 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,477.12 miles (16,861.25 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,463.52 miles (16,839.37 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,440.83 miles (16,802.84 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,438.85 miles (16,799.65 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,423.10 miles (16,774.31 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,421.11 miles (16,771.11 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,410.01 miles (16,753.24 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,398.50 miles (16,734.71 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,396.65 miles (16,731.75 km) SSE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |