Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Buttonville, Ontario, Canada:
Departure Airport:
(12°35'54"N by 61°24'52"W)
Arrival Airport:
(43°51'38"N by 79°22'6"W)
Distance from UNI to YKZ:
2,408.70 miles (3,876.41 km)
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- About this route
- UNI Airport Information
- YKZ Airport Information
- Facts about UNI
- Facts about YKZ
- Map of Nearest Airports to UNI
- List of Nearest Airports to UNI
- Map of Furthest Airports from UNI
- List of Furthest Airports from UNI
- Map of Nearest Airports to YKZ
- List of Nearest Airports to YKZ
- Map of Furthest Airports from YKZ
- List of Furthest Airports from YKZ
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Buttonville Airport (YKZ), Buttonville, Ontario, Canada would travel a Great Circle distance of 2,409 miles (or 3,876 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 Union Island Airport and Buttonville Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | YKZ / CYKZ |
| Airport Name: | Buttonville Airport |
| Location: | Buttonville, Ontario, Canada |
| GPS Coordinates: | 43°51'38"N by 79°22'6"W |
| Area Served: | Markham, Ontario |
| Operator/Owner: | Toronto Airways Limited |
| Airport Type: | Public |
| Elevation: | 650 feet (198 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from YKZ |
| More Information: | YKZ Maps & Info |
Facts about Union Island Airport (UNI):
- Union Island Airport (UNI) currently has only 1 runway.
- 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.
- 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.
Facts about Buttonville Airport (YKZ):
- Because of Buttonville Airport's relatively low elevation of 650 feet, planes can take off or land at Buttonville 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.
- On 20 June 2010, an accident occurred just off Buttonville Airport.
- The airport has a control tower using the frequencies 127.10 MHz for Automatic Terminal Information Service, 121.80 MHz for ground control, and 124.80 MHz for tower.
- The closest airport to Buttonville Airport (YKZ) is Billy Bishop Toronto City Airport (YTZ), which is located only 16 miles (26 kilometers) S of YKZ.
- The furthest airport from Buttonville Airport (YKZ) is Margaret River Airport (MGV), which is located 11,402 miles (18,350 kilometers) away in Margaret River, Western Australia, Australia.
- In September 2009, the Sifton family, owners of the airport, announced plans to re-develop the airport from 2009 to 2016 into a mixed use of commercial, retail and residential development.
- The new tower, representing an investment of over $2 million, replaced the existing facility which was built in 1967 and had reached the end of its useful life.
- Buttonville Airport (YKZ) has 2 runways.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.18 miles (26.04 km) S | Billy Bishop Toronto City Airport (YTZ) | Toronto, Ontario, Canada | |
| 2 | 18.24 miles (29.36 km) SW | Toronto Pearson International Airport (YYZ) | Mississauga, Ontario, Canada | |
| 3 | 23.89 miles (38.44 km) E | Oshawa Municipal Airport (YOO) | Oshawa, Ontario, Canada | |
| 4 | 39.18 miles (63.05 km) NW | Canadian Forces Base Borden (YBN) | Borden, Ontario, Canada | |
| 5 | 47.28 miles (76.09 km) SSE | St. Catharines/Niagara District Airport (YCM) | St. Catharines, Ontario, Canada | |
| 6 | 55.32 miles (89.02 km) SSW | John C. Munro Hamilton International Airport (YHM) | Hamilton, Ontario, Canada | |
| 7 | 56.08 miles (90.25 km) ENE | Peterborough Airport (YPQ) | Peterborough, Ontario, Canada | |
| 8 | 56.21 miles (90.46 km) SSE | Niagara Falls International Airport (IAG) | Niagara Falls, New York, United States | |
| 9 | 57.55 miles (92.62 km) WSW | Region of Waterloo International Airport (YKF) | Waterloo Regional Municipality, Ontario, Canada | |
| 10 | 71.16 miles (114.52 km) SSE | Buffalo Niagara International Airport (BUF) | Buffalo, New York, United States | |
| 11 | 77.05 miles (124.00 km) N | Muskoka Airport (YQA) | Muskoka, Ontario, Canada | |
| 12 | 88.53 miles (142.47 km) NW | Owen Sound/Billy Bishop Regional Airport (YOS) | Owen Sound, Ontario, Canada | |
| 13 | 93.21 miles (150.01 km) ENE | Canadian Forces Base Trenton (YTR) | Trenton, Ontario, Canada | |
| 14 | 94.61 miles (152.26 km) S | Chautauqua County/Dunkirk Airport (DKK) | Dunkirk, New York, United States | |
| 15 | 98.28 miles (158.16 km) NNW | Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI) | Frying Pan Island (near Parry Sound), Ontario, Canada | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,402.19 miles (18,350.00 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,378.15 miles (18,311.31 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,376.00 miles (18,307.85 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,351.71 miles (18,268.76 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,335.44 miles (18,242.57 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,286.66 miles (18,164.08 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,285.82 miles (18,162.72 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 8 | 11,278.37 miles (18,150.74 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,266.88 miles (18,132.24 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,211.93 miles (18,043.80 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,137.98 miles (17,924.79 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,116.24 miles (17,889.81 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,102.06 miles (17,866.99 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 14 | 11,092.35 miles (17,851.37 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,087.42 miles (17,843.42 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |