Nonstop flight route between Mount Isa, Queensland, Australia and St. Mary's, Alaska, United States:
Departure Airport:
(20°39'50"S by 139°29'18"E)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from ISA to KSM:
6,512.95 miles (10,481.55 km)
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Jump to:
- About this route
- ISA Airport Information
- KSM Airport Information
- Facts about ISA
- Facts about KSM
- Map of Nearest Airports to ISA
- List of Nearest Airports to ISA
- Map of Furthest Airports from ISA
- List of Furthest Airports from ISA
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
About this route:
A direct, nonstop flight between Mount Isa Airport (ISA), Mount Isa, Queensland, Australia and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 6,513 miles (or 10,482 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 Mount Isa Airport and St. Mary's 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 Mount Isa Airport and St. Mary's Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ISA / YBMA |
| Airport Name: | Mount Isa Airport |
| Location: | Mount Isa, Queensland, Australia |
| GPS Coordinates: | 20°39'50"S by 139°29'18"E |
| Area Served: | Mount Isa, Queensland, Australia |
| Operator/Owner: | Mount Isa Airport Pty Ltd |
| Airport Type: | Public |
| Elevation: | 1121 feet (342 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from ISA |
| More Information: | ISA Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | KSM / PASM |
| Airport Name: | St. Mary's Airport |
| Location: | St. Mary's, Alaska, United States |
| GPS Coordinates: | 62°3'38"N by 163°18'6"W |
| Operator/Owner: | Alaska DOT&PF |
| Airport Type: | Public |
| Elevation: | 312 feet (95 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from KSM |
| More Information: | KSM Maps & Info |
Facts about Mount Isa Airport (ISA):
- Since 2005 the airport has been owned by Queensland Airports Limited, which also owns Townsville Airport and Gold Coast Airport.
- Mount Isa Airport was ranked 30th in Australia for the number of revenue passengers served in financial year 2010-2011.
- The furthest airport from Mount Isa Airport (ISA) is Agostinho Neto Airport (NTO), which is located 11,402 miles (18,349 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
- Mount Isa Airport (ISA) currently has only 1 runway.
- The closest airport to Mount Isa Airport (ISA) is Cloncurry Airport (CNJ), which is located 66 miles (106 kilometers) E of ISA.
- On 22 September 1966 a Vickers Viscount aircraft departed from Mount Isa Airport with twenty passengers for a flight to Brisbane via Longreach.
Facts about St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- St. Mary's Airport (KSM) has 2 runways.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 65.67 miles (105.69 km) E | Cloncurry Airport (CNJ) | Cloncurry, Queensland, Australia |     |
| 2 | 100.37 miles (161.52 km) ESE | Elrose Mine Airport (ERQ) | Eloise Copper Mine, Queensland, Australia | |
| 3 | 102.52 miles (164.99 km) WNW | Camooweal Airport (CML) | Camooweal, Queensland, Australia | |
| 4 | 121.11 miles (194.91 km) SE | Trepell Airport (TQP) | Trapell, Queensland, Australia | |
| 5 | 144.41 miles (232.41 km) E | Julia Creek Airport (JCK) | Julia Creek, Queensland, Australia | |
| 6 | 157.64 miles (253.70 km) S | Boulia Airport (BQL) | Boulia, Queensland, Australia | |
| 7 | 193.16 miles (310.86 km) NNW | Doomadgee Airport (DMD) | Doomadgee Mission, Queensland, Australia | |
| 8 | 201.45 miles (324.20 km) N | Burketown Airport (BUC) | Burketown, Queensland, Australia | |
| 9 | 213.58 miles (343.73 km) SSE | Springvale Airport (KSV) | Springvale, Queensland, Australia | |
| 10 | 234.40 miles (377.23 km) E | Richmond Airport (RCM) | Richmond, Queensland, Australia | |
| 11 | 238.43 miles (383.71 km) NNE | Karumba Airport (KRB) | Karumba, Queensland, Australia | |
| 12 | 254.42 miles (409.45 km) S | Bedourie Airport (BEU) | Bedourie, Queensland, Australia | |
| 13 | 306.21 miles (492.80 km) E | Hughenden Airport (HGD) | Hughenden, Queensland, Australia | |
| 14 | 320.54 miles (515.86 km) NE | Abingdon Airport (ABG) | Abingdon, Queensland, Australia | |
| 15 | 361.61 miles (581.96 km) ESE | Longreach Airport (LRE) | Longreach, Queensland, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,401.53 miles (18,348.93 km) W | Agostinho Neto Airport (NTO) | Ponta do Sol, Santo Antão, Cape Verde | |
| 2 | 11,392.14 miles (18,333.83 km) WNW | Cesária Évora International Airport (VXE) | São Vicente, Cape Verde | |
| 3 | 11,338.26 miles (18,247.12 km) WNW | Preguiça Airport (SNE) | São Nicolau, Cape Verde | |
| 4 | 11,309.76 miles (18,201.25 km) WNW | São Filipe Airport (SFL) | Fogo, Cape Verde | |
| 5 | 11,305.48 miles (18,194.35 km) WNW | Mosteiros Airport (MTI) | Mosteiros, Cape Verde | |
| 6 | 11,256.62 miles (18,115.73 km) W | Amílcar Cabral International Airport (SID) | Sal Island, Cape Verde | |
| 7 | 11,250.03 miles (18,105.13 km) WNW | Praia International Airport (RAI) | Praia, Cape Verde | |
| 8 | 11,240.74 miles (18,090.16 km) WNW | Aristides Pereira International Airport (BVC) | Boa Vista, Cape Verde | |
| 9 | 11,238.51 miles (18,086.59 km) WNW | Maio Airport (MMO) | Maio, Cape Verde | |
| 10 | 11,083.50 miles (17,837.12 km) NE | Cayenne – Félix Eboué Airport (CAY) | Cayenne, French Guiana | |
| 11 | 11,078.16 miles (17,828.53 km) ENE | Grantley Adams International Airport (BGI) | Bridgetown, Barbados | |
| 12 | 11,051.31 miles (17,785.32 km) NE | Albina Airstrip (ABN) | Albina, Suriname | |
| 13 | 11,030.97 miles (17,752.59 km) E | Barbuda Codrington Airport (BBQ) | Codrington, Barbuda, Antigua and Barbuda | |
| 14 | 11,027.82 miles (17,747.51 km) E | Melville Hall Airport (DOM) | Melville Hall (near Roseau), Dominica | |
| 15 | 11,027.64 miles (17,747.22 km) E | Pointe-à-Pitre Le Raizet Airport (PTP) | Pointe-à-Pitre, Guadeloupe | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.52 miles (20.15 km) W | Mountain Village Airport (MOU) | Mountain Village, Alaska, United States | |
| 2 | 15.71 miles (25.28 km) ESE | Pilot Station Airport (PQS) | Pilot Station, Alaska, United States | |
| 3 | 43.61 miles (70.18 km) ESE | Marshall Don Hunter Sr. Airport (MLL) | Marshall, Alaska, United States | |
| 4 | 58.95 miles (94.87 km) WNW | Sheldon Point Airport (SXP) | Sheldon Point, Alaska, United States | |
| 5 | 61.02 miles (98.20 km) NW | Alakanuk Airport (AUK) | Alakanuk, Alaska, United States | |
| 6 | 62.90 miles (101.24 km) NW | Emmonak Airport (EMK) | Emmonak, Alaska, United States | |
| 7 | 67.40 miles (108.48 km) N | Kotlik Airport (KOT) | Kotlik, Alaska, United States | |
| 8 | 67.43 miles (108.52 km) ESE | Russian Mission Airport (RSH) | Russian Mission, Alaska, United States | |
| 9 | 75.21 miles (121.04 km) W | Scammon Bay Airport (SCM) | Scammon Bay, Alaska, United States | |
| 10 | 83.21 miles (133.91 km) WSW | Chevak Airport (VAK) | Chevak, Alaska, United States | |
| 11 | 84.72 miles (136.35 km) SSE | Nunapitchuk Airport (NUP) | Nunapitchuk, Alaska, United States | |
| 12 | 85.97 miles (138.35 km) SSE | Kasigluk Airport (KUK) | Kasigluk, Alaska, United States | |
| 13 | 88.49 miles (142.42 km) W | Cape Romanzof Air Force Station Cape Romanzof Long Range Radar Site (CZF) | Cape Romanzof, Alaska, United States | |
| 14 | 89.19 miles (143.53 km) SSW | Newtok Airport (WWT) | Newtok, Alaska, United States | |
| 15 | 89.22 miles (143.59 km) SSE | Atmautluak Airport (ATT) | Atmautluak, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,494.08 miles (16,888.54 km) S | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 2 | 10,482.44 miles (16,869.80 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,457.83 miles (16,830.21 km) SSW | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,416.76 miles (16,764.12 km) SSW | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 5 | 10,371.90 miles (16,691.92 km) SSW | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,261.64 miles (16,514.46 km) SSW | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,199.66 miles (16,414.71 km) S | Kleinsee Airport (KLZ) | Kleinzee, South Africa | |
| 8 | 10,195.75 miles (16,408.43 km) SSW | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 9 | 10,169.94 miles (16,366.89 km) S | Aggeneys Airport (AGZ) | Aggeneys, South Africa | |
| 10 | 10,169.94 miles (16,366.89 km) S | Wild Coast Sun Airport (MZF) | Mzamba, South Africa | |
| 11 | 10,157.43 miles (16,346.75 km) SSW | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 12 | 10,151.99 miles (16,338.00 km) SSW | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,149.37 miles (16,333.79 km) SSW | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 14 | 10,143.31 miles (16,324.03 km) SSW | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 15 | 10,133.50 miles (16,308.25 km) SE | Teniente Rodolfo Marsh Airport (TNM) | Villa Las Estrellas, Antarctica | |