Nonstop flight route between Union Island, Saint Vincent and the Grenadines and Spokane, Washington, United States:
Departure Airport:
(12°35'54"N by 61°24'52"W)
Arrival Airport:
(47°40'59"N by 117°19'21"W)
Distance from UNI to SFF:
4,009.08 miles (6,451.97 km)
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Jump to:
- About this route
- UNI Airport Information
- SFF Airport Information
- Facts about UNI
- Facts about SFF
- 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 SFF
- List of Nearest Airports to SFF
- Map of Furthest Airports from SFF
- List of Furthest Airports from SFF
About this route:
A direct, nonstop flight between Union Island Airport (UNI), Union Island, Saint Vincent and the Grenadines and Felts Field (SFF), Spokane, Washington, United States would travel a Great Circle distance of 4,009 miles (or 6,452 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 Union Island Airport and Felts Field, 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 Union Island Airport and Felts Field. You'll see that it will travel the same route of the red line on this map!
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: | SFF / KSFF |
| Airport Name: | Felts Field |
| Location: | Spokane, Washington, United States |
| GPS Coordinates: | 47°40'59"N by 117°19'21"W |
| Area Served: | Spokane, Washington |
| Operator/Owner: | Spokane City-County |
| Airport Type: | Public |
| Elevation: | 1957 feet (596 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from SFF |
| More Information: | SFF Maps & Info |
Facts about Union Island Airport (UNI):
- The closest airport to Union Island Airport (UNI) is Canouan Airport (CIW), which is located only 8 miles (14 kilometers) NE of 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.
- 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.
- Union Island Airport (UNI) currently has only 1 runway.
Facts about Felts Field (SFF):
- On November 29, 2003, an Ameriflight LLC cargo aircraft crashed on approach while attempting to land on runway 21R at Felts Field using ILS.
- The furthest airport from Felts Field (SFF) is Tôlanaro Airport (FTU), which is located 10,652 miles (17,143 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to Felts Field (SFF) is Spokane International Airport (GEG), which is located only 11 miles (17 kilometers) WSW of SFF.
- Felts Field (SFF) has 3 runways.
- Felts Field covers an area of 416 acres at an elevation of 1,957 feet above mean sea level.
- Today the airport is used primarily for general aviation activity.
| 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 | 10.76 miles (17.32 km) WSW | Spokane International Airport (GEG) | Spokane, Washington, United States | |
| 2 | 16.20 miles (26.07 km) WSW | Fairchild Air Force Base (SKA) | Spokane, Washington, United States | |
| 3 | 24.22 miles (38.97 km) ENE | Coeur d'Alene Airport (COE) | Coeur d'Alene, Idaho, United States | |
| 4 | 65.66 miles (105.66 km) S | Pullman-Moscow Regional Airport (PUW) | Pullman, Washington (near Moscow, Idaho), United States | |
| 5 | 91.57 miles (147.36 km) S | Lewiston-Nez Perce County Airport (LWS) | Lewiston, Idaho, United States | |
| 6 | 98.89 miles (159.14 km) WSW | Grant County International Airport (MWH) | Moses Lake, Washington, United States | |
| 7 | 105.19 miles (169.28 km) NNW | Grand Forks Airport (ZGF) | Grand Forks, British Columbia, Canada | |
| 8 | 105.66 miles (170.05 km) WSW | Ephrata Municipal Airport (EPH) | Ephrata, Washington, United States | |
| 9 | 112.35 miles (180.81 km) N | West Kootenay Regional Airport (YCG) | Castlegar, British Columbia, Canada | |
| 10 | 114.83 miles (184.80 km) WNW | Omak Airport (OMK) | Omak, Washington, United States | |
| 11 | 118.85 miles (191.27 km) SSW | Walla Walla Regional AirportWalla Walla Army Air Base (ALW) | Walla Walla, Washington, United States | |
| 12 | 129.52 miles (208.44 km) SW | Tri-Cities Airport (PSC) | Pasco, Washington, United States | |
| 13 | 133.33 miles (214.58 km) SW | Richland Airport (RLD) | Richland, Washington, United States | |
| 14 | 135.91 miles (218.73 km) W | Pangborn Memorial Airport (EAT) | Wenatchee, Washington, United States | |
| 15 | 148.24 miles (238.58 km) ENE | Glacier Park International Airport (FCA) | Kalispell, Montana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,652.10 miles (17,142.85 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 2 | 10,571.17 miles (17,012.61 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 3 | 10,570.04 miles (17,010.80 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 4 | 10,542.94 miles (16,967.18 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,533.19 miles (16,951.49 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 6 | 10,506.95 miles (16,909.25 km) S | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 7 | 10,440.95 miles (16,803.04 km) SSE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,427.68 miles (16,781.68 km) SSE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,376.41 miles (16,699.16 km) ESE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 10 | 10,368.60 miles (16,686.60 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 10,365.69 miles (16,681.92 km) ESE | East London Airport (ELS) | East London, South Africa | |
| 12 | 10,354.63 miles (16,664.12 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,349.49 miles (16,655.85 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 14 | 10,348.67 miles (16,654.52 km) ESE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,346.13 miles (16,650.44 km) ESE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |