Nonstop flight route between Adak Island, Alaska, United States and Union Island, Saint Vincent and the Grenadines:
Departure Airport:
(51°52'41"N by 176°38'45"W)
Arrival Airport:
(12°35'54"N by 61°24'52"W)
Distance from ADK to UNI:
6,556.19 miles (10,551.14 km)
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Jump to:
- About this route
- ADK Airport Information
- UNI Airport Information
- Facts about ADK
- Facts about UNI
- Map of Nearest Airports to ADK
- List of Nearest Airports to ADK
- Map of Furthest Airports from ADK
- List of Furthest Airports from ADK
- Map of Nearest Airports to UNI
- List of Nearest Airports to UNI
- Map of Furthest Airports from UNI
- List of Furthest Airports from UNI
About this route:
A direct, nonstop flight between Adak Airport (ADK), Adak Island, Alaska, United States and Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines would travel a Great Circle distance of 6,556 miles (or 10,551 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 Adak Airport and Union Island 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 Adak Airport and Union Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ADK / PADK |
| Airport Name: | Adak Airport |
| Location: | Adak Island, Alaska, United States |
| GPS Coordinates: | 51°52'41"N by 176°38'45"W |
| Area Served: | Adak Island, Alaska |
| Operator/Owner: | Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 18 feet (5 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ADK |
| More Information: | ADK Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | UNI / TVSU |
| Airport Name: | Union Island Airport |
| Location: | Union Island, Saint Vincent and the Grenadines |
| GPS Coordinates: | 12°35'54"N by 61°24'52"W |
| Area Served: | Union Island |
| Airport Type: | Public |
| Elevation: | 14 feet (4 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UNI |
| More Information: | UNI Maps & Info |
Facts about Adak Airport (ADK):
- Adak Airport was once featured on the television reality show, Alaska State Troopers.
- As per the Federal Aviation Administration, this airport had 1,989 passenger boardings in calendar year 2008, 1,907 in 2009, and 2,097 in 2010.
- Adak Airport resides at elevation of 18 feet above mean sea level.
- The furthest airport from Adak Airport (ADK) is Cape Town International Airport (CPT), which is located 10,985 miles (17,679 kilometers) away in Cape Town, South Africa.
- Adak Airport (ADK) has 2 runways.
- The closest airport to Adak Airport (ADK) is Atka Airport (AKB), which is located 106 miles (171 kilometers) ENE of ADK.
- Following the war, the AAF turned Adak over to the Navy who established anti-submarine warfare base there.
- Because of Adak Airport's relatively low elevation of 18 feet, planes can take off or land at Adak 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.
Facts about Union Island Airport (UNI):
- Because of Union Island Airport's relatively low elevation of 14 feet, planes can take off or land at Union Island 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.
- Union Island Airport (UNI) currently has only 1 runway.
- The furthest airport from Union Island Airport (UNI) is Umbu Mehang Kunda Airport (WGP), which is nearly antipodal to Union Island Airport (meaning Union Island Airport is almost on the exact opposite side of the Earth from Umbu Mehang Kunda Airport), and is located 12,203 miles (19,639 kilometers) away in Waingapu, Sumba, East Nusa Tenggara, Indonesia.
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of UNI.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 106.34 miles (171.14 km) ENE | Atka Airport (AKB) | Atka, Alaska, United States |     |
| 2 | 336.57 miles (541.65 km) ENE | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 3 | 394.42 miles (634.75 km) WNW | Eareckson Air Station (SYA) | Shemya, Alaska, United States | |
| 4 | 429.63 miles (691.43 km) NE | St. George Airport (STG) | St. George, Alaska, United States | |
| 5 | 434.18 miles (698.74 km) WNW | Casco Cove Coast Guard Station (ATU) | Attu Island, Alaska, United States | |
| 6 | 443.19 miles (713.24 km) ENE | Unalaska Airport (DUT) | Unalaska, Alaska, United States | |
| 7 | 446.73 miles (718.95 km) NNE | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 8 | 477.38 miles (768.27 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 9 | 581.92 miles (936.51 km) ENE | False Pass Airport (KFP) | False Pass, Alaska, United States | |
| 10 | 603.62 miles (971.42 km) ENE | Pauloff Harbor Seaplane Base (KPH) | Sanak Island, Alaska, United States | |
| 11 | 614.76 miles (989.36 km) ENE | Cold Bay Airport (CDB) | Cold Bay, Alaska, United States | |
| 12 | 630.55 miles (1,014.77 km) ENE | King Cove Airport (KVC) | King Cove, Alaska, United States | |
| 13 | 689.42 miles (1,109.51 km) ENE | Nelson Lagoon Airport (NLG) | Nelson Lagoon, Alaska, United States | |
| 14 | 700.58 miles (1,127.47 km) ENE | Sand Point Airport (SDP) | Sand Point, Alaska, United States | |
| 15 | 708.16 miles (1,139.68 km) NNE | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,985.34 miles (17,679.15 km) SW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,881.25 miles (17,511.64 km) SW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,778.05 miles (17,345.55 km) SW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,749.72 miles (17,299.96 km) SSW | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 5 | 10,711.57 miles (17,238.55 km) SW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 6 | 10,689.19 miles (17,202.54 km) SSW | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 7 | 10,685.68 miles (17,196.89 km) SSW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 8 | 10,685.67 miles (17,196.88 km) SSW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 9 | 10,650.66 miles (17,140.53 km) SW | East London Airport (ELS) | East London, South Africa | |
| 10 | 10,607.58 miles (17,071.20 km) SSW | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 11 | 10,589.31 miles (17,041.80 km) SSW | Lüderitz Airport (LUD) | Luderitz, Namibia | |
| 12 | 10,570.50 miles (17,011.53 km) SW | Upington Airport (UTN) | Upington, South Africa | |
| 13 | 10,537.93 miles (16,959.11 km) SW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 14 | 10,524.48 miles (16,937.47 km) SSW | Keetmanshoop Airport (KMP) | Keetmanshoop, Namibia | |
| 15 | 10,499.70 miles (16,897.59 km) SW | Kimberley Airport (KIM) | Kimberley, South Africa | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.48 miles (13.65 km) NE | Canouan Airport (CIW) | Canouan Island, Saint Vincent and the Grenadines | |
| 2 | 9.26 miles (14.90 km) SSW | Lauriston Airport (CRU) | Carriacou Island, Grenada | |
| 3 | 25.49 miles (41.02 km) NE | Mustique Airport (MQS) | Mustique Island, Saint Vincent and the Grenadines | |
| 4 | 28.83 miles (46.39 km) NNE | J. F. Mitchell Airport (BQU) | Bequia, Saint Vincent and the Grenadines | |
| 5 | 40.14 miles (64.59 km) NNE | E.T. Joshua Airport (SVD) | Arno Vale (near Kingstown), Saint Vincent, Saint Vincent and the Grenadines | |
| 6 | 48.12 miles (77.44 km) SSW | Maurice Bishop International Airport (GND) | St. George's, Grenada | |
| 7 | 84.34 miles (135.74 km) NNE | Hewanorra International Airport (UVF) | Vieux-Fort, Saint Lucia | |
| 8 | 102.24 miles (164.53 km) NNE | George F. L. Charles Airport (SLU) | Castries, Saint Lucia | |
| 9 | 107.58 miles (173.13 km) SSE | A.N.R. Robinson International Airport (TAB) | Scarborough, Tobago, Trinidad and Tobago | |
| 10 | 133.61 miles (215.02 km) ENE | Grantley Adams International Airport (BGI) | Bridgetown, Barbados | |
| 11 | 138.52 miles (222.92 km) S | Piarco International Airport (POS) | Piarco (near Port of Spain), Trinidad and Tobago | |
| 12 | 140.58 miles (226.24 km) NNE | Aimé Césaire Airport (FDF) | Le Lamentin / Fort de France, Martinique | |
| 13 | 152.52 miles (245.46 km) SSW | Güiria Airport (GUI) | Guiria, Venezuela | |
| 14 | 183.20 miles (294.83 km) SW | General José Francisco Bermúdez Airport (CUP) | Carúpano, Venezuela | |
| 15 | 189.19 miles (304.47 km) N | Canefield Airport (DCF) | Canefield, Dominica | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,203.33 miles (19,639.31 km) SSW | Umbu Mehang Kunda Airport (WGP) | Waingapu, Sumba, East Nusa Tenggara, Indonesia | |
| 2 | 12,167.01 miles (19,580.86 km) WSW | Tardamu Airport (SAU) | Savu Island, East Nusa Tenggara, Indonesia | |
| 3 | 12,156.27 miles (19,563.57 km) S | Sultan Muhammad Salahuddin Airport (BMU) | Bima, Indonesia | |
| 4 | 12,139.21 miles (19,536.12 km) SSW | Komodo Airport (LBJ) | Labuan Bajo, Flores Island, Indonesia | |
| 5 | 12,128.61 miles (19,519.06 km) SSE | Lombok International Airport (LOP) | Mataram (near Praya), Lombok, Indonesia | |
| 6 | 12,119.98 miles (19,505.16 km) SSW | Bajawa Soa Airport (BJW) | Bajawa, Indonesia | |
| 7 | 12,110.52 miles (19,489.95 km) SSE | Selaparang Airport (AMI) | Mataram, Indonesia | |
| 8 | 12,104.11 miles (19,479.63 km) SW | H. Hasan Aroeboesman Airport (ENE) | Ende, Flores, Indonesia | |
| 9 | 12,083.80 miles (19,446.94 km) SE | Ngurah Rai International Airport (NRIA) (DPS) | Denpasar, Bali, Indonesia | |
| 10 | 12,067.69 miles (19,421.01 km) SW | Frans Seda Airport (MOF) | Maumere, Indonesia | |
| 11 | 12,067.68 miles (19,421.00 km) SW | Wonopito Airport (LWE) | Lewoleba, Indonesia | |
| 12 | 12,053.69 miles (19,398.49 km) WSW | El Tari Airport (KOE) | Kupang, East Nusa Tenggara, Indonesia | |
| 13 | 12,023.34 miles (19,349.64 km) SE | Blimbingsari Airport (BWX) | Banyuwangi Regency, East Java, Java Island, Indonesia | |
| 14 | 11,994.55 miles (19,303.30 km) SSW | Broome International Airport (BME) | Broome, Western Australia, Australia | |
| 15 | 11,964.20 miles (19,254.47 km) SW | Derby Airport (DRB) | Derby, Western Australia, Australia | |