Nonstop flight route between Camp San Luis Obispo, California, United States and Unalakleet, Alaska, United States:
Departure Airport:
(35°19'33"N by 120°44'35"W)
Arrival Airport:
(63°53'17"N by 160°47'56"W)
Distance from CSL to UNK:
2,586.38 miles (4,162.36 km)
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- About this route
- CSL Airport Information
- UNK Airport Information
- Facts about CSL
- Facts about UNK
- Map of Nearest Airports to CSL
- List of Nearest Airports to CSL
- Map of Furthest Airports from CSL
- List of Furthest Airports from CSL
- Map of Nearest Airports to UNK
- List of Nearest Airports to UNK
- Map of Furthest Airports from UNK
- List of Furthest Airports from UNK
About this route:
A direct, nonstop flight between O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States and Unalakleet Airport (UNK), Unalakleet, Alaska, United States would travel a Great Circle distance of 2,586 miles (or 4,162 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 O'Sullivan Army Heliport and Unalakleet 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 O'Sullivan Army Heliport and Unalakleet Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CSL / KCSL |
| Airport Name: | O'Sullivan Army Heliport |
| Location: | Camp San Luis Obispo, California, United States |
| GPS Coordinates: | 35°19'33"N by 120°44'35"W |
| Operator/Owner: | United States Army |
| Airport Type: | Military |
| Elevation: | 250 feet (76 meters) |
| View all routes: | Routes from CSL |
| More Information: | CSL Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | UNK / PAUN |
| Airport Name: | Unalakleet Airport |
| Location: | Unalakleet, Alaska, United States |
| GPS Coordinates: | 63°53'17"N by 160°47'56"W |
| Area Served: | Unalakleet, Alaska |
| Operator/Owner: | State of Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 21 feet (6 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from UNK |
| More Information: | UNK Maps & Info |
Facts about O'Sullivan Army Heliport (CSL):
- The furthest airport from O'Sullivan Army Heliport (CSL) is Pierrefonds Airport (ZSE), which is located 11,442 miles (18,414 kilometers) away in Saint-Pierre, Réunion.
- Because of O'Sullivan Army Heliport's relatively low elevation of 250 feet, planes can take off or land at O'Sullivan Army Heliport 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 closest airport to O'Sullivan Army Heliport (CSL) is San Luis Obispo County Regional Airport (SBP), which is located only 8 miles (14 kilometers) SE of CSL.
Facts about Unalakleet Airport (UNK):
- Because of Unalakleet Airport's relatively low elevation of 21 feet, planes can take off or land at Unalakleet 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 closest airport to Unalakleet Airport (UNK) is Shaktoolik Airport (SKK), which is located 36 miles (58 kilometers) NNW of UNK.
- Unalakleet Airport (UNK) has 2 runways.
- The furthest airport from Unalakleet Airport (UNK) is Cape Town International Airport (CPT), which is located 10,369 miles (16,688 kilometers) away in Cape Town, South Africa.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 8.40 miles (13.51 km) SE | San Luis Obispo County Regional Airport (SBP) | San Luis Obispo, California, United States |     |
| 2 | 24.83 miles (39.96 km) NNE | Paso Robles Municipal AirportEstrella Army Airfield (PRB) | Paso Robles, California, United States | |
| 3 | 33.64 miles (54.14 km) SSE | Santa Maria Public Airport (SMX) | Santa Maria, California, United States | |
| 4 | 33.78 miles (54.36 km) N | Roberts Army Heliport (SYL) | Camp Roberts, San Luis Obispo County, California, United States | |
| 5 | 42.19 miles (67.90 km) SSE | Vandenberg Air Force Base (VBG) | Lompoc, California, United States | |
| 6 | 48.23 miles (77.61 km) SSE | Lompoc Airport (LPC) | Lompoc, California, United States | |
| 7 | 62.43 miles (100.47 km) SE | Santa Ynez Airport (SQA) | Santa Ynez, California, United States | |
| 8 | 63.08 miles (101.51 km) NNE | New Coalinga Municipal Airport (CLG) | Coalinga, California, United States | |
| 9 | 65.86 miles (106.00 km) NNW | Mesa Del Rey Airport (KIC) | King City, California, United States | |
| 10 | 80.53 miles (129.60 km) SE | Santa Barbara Airport (SBA) | Santa Barbara, California, United States | |
| 11 | 82.49 miles (132.75 km) NNE | Naval Air Station Lemoore (NLC) | Lemoore, California, United States | |
| 12 | 83.84 miles (134.93 km) NE | Corcoran Airport (CRO) | Corcoran, California, United States | |
| 13 | 88.23 miles (142.00 km) E | Shafter Airport (MIT) | Shafter, California, United States | |
| 14 | 95.23 miles (153.26 km) E | Meadows Field (BFL) | Bakersfield, California, United States | |
| 15 | 97.99 miles (157.70 km) NE | Mefford Field (TLR) | Tulare, California, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,441.78 miles (18,413.71 km) SSE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 2 | 11,416.20 miles (18,372.55 km) SE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 3 | 11,413.89 miles (18,368.83 km) SSE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 4 | 11,403.15 miles (18,351.54 km) S | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 5 | 11,332.44 miles (18,237.76 km) SSW | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 6 | 11,301.56 miles (18,188.05 km) SE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 11,258.75 miles (18,119.16 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 11,228.55 miles (18,070.55 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 11,117.74 miles (17,892.23 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 10 | 11,109.14 miles (17,878.38 km) SE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 11 | 11,102.43 miles (17,867.58 km) SSE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 12 | 11,095.53 miles (17,856.48 km) SE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 13 | 11,086.78 miles (17,842.39 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 11,060.60 miles (17,800.26 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 15 | 11,049.62 miles (17,782.60 km) SSE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.73 miles (57.51 km) NNW | Shaktoolik Airport (SKK) | Shaktoolik, Alaska, United States | |
| 2 | 48.69 miles (78.35 km) SW | St. Michael Airport (SMK) | St. Michael, Alaska, United States | |
| 3 | 52.08 miles (83.82 km) WSW | Stebbins Airport (WBB) | Stebbins, Alaska, United States | |
| 4 | 66.87 miles (107.62 km) NW | Elim Airport (ELI) | Elim, Alaska, United States | |
| 5 | 68.84 miles (110.79 km) ENE | Kaltag Airport (KAL) | Kaltag, Alaska, United States | |
| 6 | 72.33 miles (116.40 km) SSE | Grayling Airport (KGX) | Grayling, Alaska, United States | |
| 7 | 73.39 miles (118.12 km) N | Koyuk Alfred Adams Airport (KKA) | Koyuk, Alaska, United States | |
| 8 | 80.60 miles (129.71 km) NW | Golovin Airport (GLV) | Golovin, Alaska, United States | |
| 9 | 87.85 miles (141.38 km) SSE | Anvik Airport (ANV) | Anvik, Alaska, United States | |
| 10 | 91.04 miles (146.51 km) SSE | Shageluk Airport (SHX) | Shageluk, Alaska, United States | |
| 11 | 91.32 miles (146.97 km) N | Haycock Airport (HAY) | Haycock, Alaska, United States | |
| 12 | 95.91 miles (154.35 km) NW | White Mountain Airport (WMO) | White Mountain, Alaska, United States | |
| 13 | 100.18 miles (161.22 km) NE | Nulato Airport (NUL) | Nulato, Alaska, United States | |
| 14 | 103.12 miles (165.95 km) SW | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 15 | 105.57 miles (169.90 km) N | Granite Mountain Air Station (GMT) | Granite Mountain, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,369.44 miles (16,687.96 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,367.72 miles (16,685.18 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,352.62 miles (16,660.88 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,315.27 miles (16,600.78 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,273.08 miles (16,532.88 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,164.61 miles (16,358.31 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,139.30 miles (16,317.59 km) ESE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 8 | 10,103.51 miles (16,259.98 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,071.64 miles (16,208.69 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 10 | 10,055.18 miles (16,182.20 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,052.16 miles (16,177.35 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 12 | 10,051.35 miles (16,176.04 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 13 | 10,045.65 miles (16,166.86 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 14 | 10,045.65 miles (16,166.86 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 15 | 10,044.32 miles (16,164.73 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |