Nonstop flight route between Nioki, Democratic Republic of the Congo and Unalaska, Alaska, United States:
Departure Airport:
(2°43'2"S by 17°41'4"E)
Arrival Airport:
(53°53'56"N by 166°32'41"W)
Distance from NIO to DUT:
8,892.37 miles (14,310.84 km)
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Jump to:
- About this route
- NIO Airport Information
- DUT Airport Information
- Facts about NIO
- Facts about DUT
- Map of Nearest Airports to NIO
- List of Nearest Airports to NIO
- Map of Furthest Airports from NIO
- List of Furthest Airports from NIO
- Map of Nearest Airports to DUT
- List of Nearest Airports to DUT
- Map of Furthest Airports from DUT
- List of Furthest Airports from DUT
About this route:
A direct, nonstop flight between Nioki Airport (NIO), Nioki, Democratic Republic of the Congo and Unalaska Airport (DUT), Unalaska, Alaska, United States would travel a Great Circle distance of 8,892 miles (or 14,311 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 Nioki Airport and Unalaska Airport, 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 Nioki Airport and Unalaska Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | NIO / FZBI |
| Airport Name: | Nioki Airport |
| Location: | Nioki, Democratic Republic of the Congo |
| GPS Coordinates: | 2°43'2"S by 17°41'4"E |
| Airport Type: | Public |
| Elevation: | 1043 feet (318 meters) |
| View all routes: | Routes from NIO |
| More Information: | NIO Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | DUT / PADU |
| Airport Names: |
|
| Location: | Unalaska, Alaska, United States |
| GPS Coordinates: | 53°53'56"N by 166°32'41"W |
| Area Served: | Unalaska, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 22 feet (7 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from DUT |
| More Information: | DUT Maps & Info |
Facts about Nioki Airport (NIO):
- The closest airport to Nioki Airport (NIO) is Bandundu Airport (FDU), which is located 46 miles (74 kilometers) SSW of NIO.
- The furthest airport from Nioki Airport (NIO) is Cassidy International Airport (CXI), which is nearly antipodal to Nioki Airport (meaning Nioki Airport is almost on the exact opposite side of the Earth from Cassidy International Airport), and is located 12,090 miles (19,457 kilometers) away in Christmas Island, Kiribati.
Facts about Unalaska Airport (DUT):
- Unalaska Airport (DUT) currently has only 1 runway.
- The closest airport to Unalaska Airport (DUT) is Akutan Seaplane Base (KQA), which is located 35 miles (56 kilometers) ENE of DUT.
- The furthest airport from Unalaska Airport (DUT) is Cape Town International Airport (CPT), which is located 11,037 miles (17,763 kilometers) away in Cape Town, South Africa.
- Because of Unalaska Airport's relatively low elevation of 22 feet, planes can take off or land at Unalaska 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.
- In addition to being known as "Unalaska Airport", other names for DUT include "Dutch Harbor Airport" and "Tom Madsen Airport".
- Unalaska Airport is the base for the "Dutch Harbor Approach" mission supplied with Microsoft Flight Simulator X.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 46.04 miles (74.09 km) SSW | Bandundu Airport (FDU) | Bandundu, Democratic Republic of the Congo |     |
| 2 | 67.49 miles (108.61 km) NE | Inongo Airport (INO) | Inongo, Democratic Republic of the Congo | |
| 3 | 126.16 miles (203.04 km) NE | Basango Mboliasa Airport (KRZ) | Kiri, Democratic Republic of the Congo | |
| 4 | 138.57 miles (223.00 km) WNW | Gamboma Airport (GMM) | Gamboma, Republic of the Congo | |
| 5 | 160.23 miles (257.86 km) NW | Oyo Ollombo Airport (OLL) | Oyo, Republic of the Congo, Republic of the Congo | |
| 6 | 177.25 miles (285.25 km) SSE | Kikwit Airport (KKW) | Kikwit, Democratic Republic of the Congo | |
| 7 | 192.74 miles (310.19 km) SW | N'djili Airport (FIH) | Kinshasa, Democratic Republic of the Congo | |
| 8 | 192.79 miles (310.26 km) NW | Owando Airport (FTX) | Owando, Republic of the Congo | |
| 9 | 193.86 miles (311.98 km) NNE | Mbandaka Airport (MDK) | Mbandaka, Democratic Republic of the Congo | |
| 10 | 197.00 miles (317.04 km) NW | Boundji Airport (BOE) | Boundji, Republic of the Congo | |
| 11 | 198.39 miles (319.28 km) WSW | Maya–Maya Airport (BZV) | Brazzaville, Republic of the Congo | |
| 12 | 202.96 miles (326.63 km) W | Djambala Airport (DJM) | Djambala, Republic of Congo | |
| 13 | 205.67 miles (331.00 km) SE | Idiofa Airport (IDF) | Idiofa, Democratic Republic of the Congo | |
| 14 | 218.32 miles (351.36 km) W | Lague Airport (LCO) | Lague, Republic of Congo | |
| 15 | 219.39 miles (353.08 km) ESE | Basongo Airport (BAN) | Basongo, Democratic Republic of the Congo | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,090.30 miles (19,457.40 km) W | Cassidy International Airport (CXI) | Christmas Island, Kiribati | |
| 2 | 11,685.59 miles (18,806.09 km) ESE | Canton Island Airport (CIS) | Canton Island, Kiribati | |
| 3 | 11,527.30 miles (18,551.34 km) S | Manihiki Island Airport (MHX) | Manihiki Island, Cook Islands | |
| 4 | 11,351.66 miles (18,268.68 km) NNE | Johnston Atoll Airport (JON) | Johnston Atoll, U.S. Minor Outlying Islands | |
| 5 | 11,186.93 miles (18,003.57 km) NNW | Kona International Airport at Keāhole (KOA) | Kailua / Kona, Hawaii, United States | |
| 6 | 11,172.75 miles (17,980.75 km) NNW | Pōhakuloa Training Area (BSF) | Camp Pohakuloa, Hawaii, United States | |
| 7 | 11,169.56 miles (17,975.62 km) SSE | Fitiuta Airport (FTI) | Fiti‘uta, American Samoa, United States | |
| 8 | 11,166.42 miles (17,970.56 km) SSE | Tau Airport (TAV) | Tau, American Samoa | |
| 9 | 11,164.98 miles (17,968.25 km) SSE | Ofu Airport (OFU) | Ofu, American Samoa | |
| 10 | 11,163.75 miles (17,966.27 km) NNW | Hilo International Airport (ITO) | Hilo, Hawaii, United States | |
| 11 | 11,161.21 miles (17,962.18 km) NNW | Waimea-Kohala Airport (MUE) | Kamuela, Hawaii, United States | |
| 12 | 11,148.64 miles (17,941.96 km) NNW | Upolu Airport (UPP) | Hawi, Hawaii, United States | |
| 13 | 11,137.23 miles (17,923.59 km) NNW | Lanai Airport (LNY) | Lanai City, Hawaii, United States | |
| 14 | 11,129.55 miles (17,911.23 km) SSE | Pago Pago International Airport (PPG) | Pago Pago, American Samoa | |
| 15 | 11,122.55 miles (17,899.96 km) SSE | Fagali'i Airport (FGI) | Apia, Samoa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.10 miles (56.49 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 2 | 115.63 miles (186.09 km) SW | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 3 | 142.15 miles (228.78 km) ENE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 4 | 160.46 miles (258.23 km) ENE | Pauloff Harbor Seaplane Base (KPH) | Sanak Island, Alaska, United States | |
| 5 | 177.69 miles (285.96 km) ENE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 6 | 191.11 miles (307.56 km) ENE | King Cove Airport (KVC) | King Cove, Alaska, United States | |
| 7 | 222.07 miles (357.39 km) NNW | St. George Airport (STG) | St. George, Alaska, United States | |
| 8 | 258.48 miles (415.98 km) NE | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 9 | 260.01 miles (418.45 km) ENE | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 10 | 267.59 miles (430.64 km) NNW | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 11 | 278.38 miles (448.00 km) NE | Port Moller Airport (PML) | Cold Bay, Alaska, United States | |
| 12 | 324.27 miles (521.87 km) ENE | Perryville Airport (KPV) | Perryville, Alaska, United States | |
| 13 | 338.39 miles (544.58 km) WSW | Atka Airport (AKB) | Atka, Alaska, United States | |
| 14 | 347.50 miles (559.25 km) ENE | Chignik Lake Airport (KCQ) | Chignik Lake, Alaska, United States | |
| 15 | 355.74 miles (572.51 km) ENE | Chignik Fisheries Airport (KCG) | Chignik, Alaska, United States. | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,037.14 miles (17,762.52 km) SSW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,995.13 miles (17,694.91 km) SSW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,938.74 miles (17,604.15 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,885.53 miles (17,518.51 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,832.30 miles (17,432.85 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,753.73 miles (17,306.41 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 7 | 10,718.30 miles (17,249.39 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 8 | 10,714.69 miles (17,243.58 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 9 | 10,714.69 miles (17,243.58 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 10 | 10,680.07 miles (17,187.86 km) S | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 11 | 10,637.02 miles (17,118.58 km) SW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 12 | 10,634.24 miles (17,114.11 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 13 | 10,631.42 miles (17,109.57 km) SSW | Upington Airport (UTN) | Upington, South Africa | |
| 14 | 10,629.75 miles (17,106.88 km) S | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 15 | 10,620.66 miles (17,092.25 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |