Nonstop flight route between Camp San Luis Obispo, California, United States and Sion, Switzerland:
Departure Airport:
(35°19'33"N by 120°44'35"W)
Arrival Airport:
(46°13'10"N by 7°19'36"E)
Distance from CSL to SIR:
5,943.45 miles (9,565.04 km)
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- About this route
- CSL Airport Information
- SIR Airport Information
- Facts about CSL
- Facts about SIR
- 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 SIR
- List of Nearest Airports to SIR
- Map of Furthest Airports from SIR
- List of Furthest Airports from SIR
About this route:
A direct, nonstop flight between O'Sullivan Army Heliport (CSL), Camp San Luis Obispo, California, United States and Sion Airport (SIR), Sion, Switzerland would travel a Great Circle distance of 5,943 miles (or 9,565 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 Sion 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 Sion 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: | SIR / LSGS |
| Airport Names: |
|
| Location: | Sion, Switzerland |
| GPS Coordinates: | 46°13'10"N by 7°19'36"E |
| Area Served: | Sion, Switzerland |
| Elevation: | 1585 feet (483 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SIR |
| More Information: | SIR Maps & Info |
Facts about O'Sullivan Army Heliport (CSL):
- 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.
- 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.
Facts about Sion Airport (SIR):
- Sion Airport (SIR) has 2 runways.
- The closest airport to Sion Airport (SIR) is Aosta Valley Airport (AOT), which is located 33 miles (54 kilometers) S of SIR.
- The furthest airport from Sion Airport (SIR) is Chatham Islands (CHT), which is nearly antipodal to Sion Airport (meaning Sion Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,188 miles (19,615 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- In addition to being known as "Sion Airport", other names for SIR include "Aéroport de Sion" and "LSGS /LSMS".
| 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 | 33.31 miles (53.61 km) S | Aosta Valley Airport (AOT) | Aosta, Italy | |
| 2 | 40.64 miles (65.41 km) NW | Lausanne Airport (QLS) | Lausanne, Switzerland | |
| 3 | 42.49 miles (68.38 km) SW | Megève Aerodrome (MVV) | Megève, France | |
| 4 | 48.55 miles (78.14 km) N | Bern Airport (BRN) | Bern, Switzerland | |
| 5 | 50.66 miles (81.53 km) W | Annemasse Aerodrome (QNJ) | Annemasse, France | |
| 6 | 58.20 miles (93.66 km) W | Geneva International Airport (GVA) | Geneva, Switzerland | |
| 7 | 65.86 miles (106.00 km) SSW | Courchevel Airport (CVF) | Courchevel, France | |
| 8 | 66.71 miles (107.36 km) SSW | Méribel Airport (MFX) | Meribel, France | |
| 9 | 71.98 miles (115.84 km) SSE | Turin Airport (TRN) | Turin, Italy | |
| 10 | 75.96 miles (122.25 km) NE | Emmen Swiss Air Base (EML) | Emmen, Lucerne, Switzerland | |
| 11 | 77.30 miles (124.41 km) E | Lugano Airport (LUG) | Lugano, Agno, Switzerland | |
| 12 | 78.50 miles (126.34 km) ESE | Milan Malpensa Airport (MXP) | Milano, Italy | |
| 13 | 80.19 miles (129.05 km) WSW | Chambéry Airport (CMF) | Chambéry, France | |
| 14 | 90.13 miles (145.05 km) NW | Besançon - La Vèze Aerodrome (QBQ) | Besançon / La Vèze, France | |
| 15 | 91.13 miles (146.66 km) NNW | Montbéliard - Courcelles Aerodrome (XMF) | Montbéliard, France | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,188.10 miles (19,614.80 km) SE | Chatham Islands (CHT) | Waitangi, Chatham Islands, New Zealand | |
| 2 | 11,749.62 miles (18,909.14 km) ESE | Hood Aerodrome (MRO) | Masterton, New Zealand | |
| 3 | 11,732.10 miles (18,880.94 km) SE | Hawke's Bay Airport (NPE) | Napier, New Zealand | |
| 4 | 11,730.83 miles (18,878.89 km) SE | Gisborne Airport (GIS) | Gisborne, New Zealand | |
| 5 | 11,727.65 miles (18,873.78 km) ESE | Wellington International Airport (WLG) | Wellington, New Zealand | |
| 6 | 11,721.62 miles (18,864.07 km) ESE | Palmerston North Airport (PMR) | Palmerston North, New Zealand | |
| 7 | 11,719.38 miles (18,860.46 km) ESE | Kapiti Coast Airport (PPQ) | Paraparaumu Beach, New Zealand | |
| 8 | 11,710.67 miles (18,846.45 km) ESE | Kaikoura Aerodrome (KBZ) | Kaikoura, New Zealand | |
| 9 | 11,693.26 miles (18,818.43 km) ESE | Woodbourne Airport (BHE) | Blenheim, New Zealand | |
| 10 | 11,689.24 miles (18,811.97 km) E | Christchurch International Airport (CHC) | Christchurch, New Zealand | |
| 11 | 11,681.75 miles (18,799.91 km) ESE | Wanganui Airport (WAG) | Wanganui, New Zealand | |
| 12 | 11,666.63 miles (18,775.57 km) SE | Taupo AirportTe Papa Waka Rererangi o Taupō (TUO) | Taupo, New Zealand | |
| 13 | 11,663.50 miles (18,770.54 km) E | Ashburton Aerodrome (ASG) | Ashburton, New Zealand | |
| 14 | 11,656.56 miles (18,759.37 km) ESE | Nelson AirportTe Papa Waka Rererangi o Whakatū (NSN) | Nelson, New Zealand | |
| 15 | 11,654.53 miles (18,756.10 km) SE | Whakatane Airport (WHK) | Whakatane, New Zealand | |