Nonstop flight route between Sion, Switzerland and Attu Island, Alaska, United States:
Departure Airport:
(46°13'10"N by 7°19'36"E)
Arrival Airport:
(52°49'57"N by 173°10'32"E)
Distance from SIR to ATU:
5,542.06 miles (8,919.05 km)
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Jump to:
- About this route
- SIR Airport Information
- ATU Airport Information
- Facts about SIR
- Facts about ATU
- Map of Nearest Airports to SIR
- List of Nearest Airports to SIR
- Map of Furthest Airports from SIR
- List of Furthest Airports from SIR
- Map of Nearest Airports to ATU
- List of Nearest Airports to ATU
- Map of Furthest Airports from ATU
- List of Furthest Airports from ATU
About this route:
A direct, nonstop flight between Sion Airport (SIR), Sion, Switzerland and Casco Cove Coast Guard Station (ATU), Attu Island, Alaska, United States would travel a Great Circle distance of 5,542 miles (or 8,919 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 Sion Airport and Casco Cove Coast Guard Station, 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 Sion Airport and Casco Cove Coast Guard Station. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | ATU / PAAT |
| Airport Names: |
|
| Location: | Attu Island, Alaska, United States |
| GPS Coordinates: | 52°49'57"N by 173°10'32"E |
| Operator/Owner: | U.S. Coast Guard 17th Dist. |
| Airport Type: | Private use |
| Elevation: | 88 feet (27 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ATU |
| More Information: | ATU Maps & Info |
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".
Facts about Casco Cove Coast Guard Station (ATU):
- Casco Cove is one of the most isolated and remote airports in the United States.
- The furthest airport from Casco Cove Coast Guard Station (ATU) is Cape Town International Airport (CPT), which is located 10,631 miles (17,109 kilometers) away in Cape Town, South Africa.
- Because of Casco Cove Coast Guard Station's relatively low elevation of 88 feet, planes can take off or land at Casco Cove Coast Guard Station 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.
- In addition to being known as "Casco Cove Coast Guard Station", other names for ATU include "LORAN Station Attu" and "(former Naval Air Facility Attu)".
- Casco Cove CGS resides at elevation of 88 feet above mean sea level.
- The closest airport to Casco Cove Coast Guard Station (ATU) is Eareckson Air Station (SYA), which is located 40 miles (65 kilometers) ESE of ATU.
- Casco Cove Coast Guard Station (ATU) currently has only 1 runway.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 40.08 miles (64.50 km) ESE | Eareckson Air Station (SYA) | Shemya, Alaska, United States | |
| 2 | 434.18 miles (698.74 km) E | Adak Airport (ADK) | Adak Island, Alaska, United States | |
| 3 | 531.42 miles (855.23 km) E | Atka Airport (AKB) | Atka, Alaska, United States | |
| 4 | 611.52 miles (984.14 km) W | Yelizovo Airport (PKC) | Petropavlovsk-Kamchatsky, Russia | |
| 5 | 720.55 miles (1,159.60 km) ENE | St. Paul Island Airport (SNP) | St. Paul Island, Alaska, United States | |
| 6 | 729.92 miles (1,174.68 km) ENE | St. George Airport (STG) | St. George, Alaska, United States | |
| 7 | 747.48 miles (1,202.95 km) E | Nikolski Air Station (IKO) | Nikolski, Alaska, United States | |
| 8 | 823.34 miles (1,325.04 km) N | Markovo Airport (KVM) | Markovo, Chukotka Autonomous Okrug, Russia | |
| 9 | 836.44 miles (1,346.12 km) ENE | Unalaska Airport (DUT) | Unalaska, Alaska, United States | |
| 10 | 837.95 miles (1,348.54 km) N | Ugolny Airport (DYR) | Anadyr, Russia | |
| 11 | 866.70 miles (1,394.82 km) ENE | Akutan Seaplane Base (KQA) | Akutan, Alaska, United States | |
| 12 | 928.25 miles (1,493.87 km) NNE | Gambell Airport (GAM) | Gambell, Alaska, United States | |
| 13 | 931.23 miles (1,498.67 km) NNE | Provideniya Bay Airport (PVS) | Provideniya, Chukotka, Russia | |
| 14 | 933.22 miles (1,501.86 km) NE | Mekoryuk Airport (MYU) | Mekoryuk, Alaska, United States | |
| 15 | 950.66 miles (1,529.94 km) NNE | Savoonga Airport (SVA) | Savoonga, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,631.23 miles (17,109.27 km) SW | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,501.26 miles (16,900.10 km) WSW | George Airport (GRJ) | George, South Africa | |
| 3 | 10,458.69 miles (16,831.59 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |
| 4 | 10,431.40 miles (16,787.68 km) SW | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 5 | 10,381.55 miles (16,707.44 km) WSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 6 | 10,381.37 miles (16,707.15 km) SW | Alexander Bay Airport (ALJ) | Alexander Bay, South Africa | |
| 7 | 10,354.51 miles (16,663.93 km) SW | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 8 | 10,354.51 miles (16,663.92 km) SW | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 9 | 10,326.08 miles (16,618.18 km) ESE | Port Stanley Airport (PSY) | Stanley, Falkland Islands, United Kingdom | |
| 10 | 10,311.35 miles (16,594.46 km) WSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 11 | 10,303.30 miles (16,581.51 km) ESE | RAF Mount Pleasant (MPN) | Falkland Islands | |
| 12 | 10,302.39 miles (16,580.04 km) SW | Lüderitz Airport (LUD) | Luderitz, Namibia | |
| 13 | 10,282.92 miles (16,548.71 km) SW | Karasburg Airport (KAS) | Karasburg, Namibia | |
| 14 | 10,248.62 miles (16,493.52 km) WSW | East London Airport (ELS) | East London, South Africa | |
| 15 | 10,224.59 miles (16,454.85 km) SW | Upington Airport (UTN) | Upington, South Africa | |