Nonstop flight route between Gary, Indiana (near Chicago), United States and St. Mary's, Alaska, United States:
Departure Airport:
(41°36'59"N by 87°24'46"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from GYY to KSM:
3,300.48 miles (5,311.59 km)
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- About this route
- GYY Airport Information
- KSM Airport Information
- Facts about GYY
- Facts about KSM
- Map of Nearest Airports to GYY
- List of Nearest Airports to GYY
- Map of Furthest Airports from GYY
- List of Furthest Airports from GYY
- 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 Gary/Chicago International Airport (GYY), Gary, Indiana (near Chicago), United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,300 miles (or 5,312 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 Gary/Chicago International 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 Gary/Chicago International 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: | GYY / KGYY |
| Airport Name: | Gary/Chicago International Airport |
| Location: | Gary, Indiana (near Chicago), United States |
| GPS Coordinates: | 41°36'59"N by 87°24'46"W |
| Area Served: | Gary, Indiana |
| Operator/Owner: | Gary/Chicago Airport Authority |
| Airport Type: | Public |
| Elevation: | 591 feet (180 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from GYY |
| More Information: | GYY 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 Gary/Chicago International Airport (GYY):
- Gary/Chicago International Airport (GYY) has 2 runways.
- For many years airplanes seen in the Chicago Air & Water Show have flown from here, including the {U.S.
- Federal funds were secured in January 2006 to move railroad tracks away from the northwest corner to allow extension of the main runway to 9,000 feet, as well as add gates to the existing passenger terminal building.
- A long-standing proposal to turn the Gary/Chicago International Airport into Chicago's third major airport received a boost in early 2006 with the approval of $48 million in federal funding over the next ten years.
- Gary/Chicago International Airport is a joint civil-military public airport in Gary, in Lake County, Indiana, three miles northwest of the city center and 25 miles southeast of the Chicago Loop.
- The closest airport to Gary/Chicago International Airport (GYY) is Chicago Midway International Airport (MDW), which is located 21 miles (34 kilometers) NW of GYY.
- Expanding Gary/Chicago Airport is an alternative to constructing a new airport near Peotone, Illinois, 30 miles south of Chicago.
- On the afternoon of March 22, 2013, the FAA closed the airport's control tower, along with other airports in Illinois.
- On May 24, 2013 Allegiant Air reported it was cancelling air service out of Gary in August.
- Because of Gary/Chicago International Airport's relatively low elevation of 591 feet, planes can take off or land at Gary/Chicago International 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.
- Skybus Airlines served the airport until the airline folded on April 4, 2008.
- The furthest airport from Gary/Chicago International Airport (GYY) is Margaret River Airport (MGV), which is located 11,103 miles (17,868 kilometers) away in Margaret River, Western Australia, Australia.
- Gary/Chicago International Airport was once served by Pan Am, Southeast Airlines, SkyValue Airlines, Skybus Airlines and Hooters Air, with flights to cities such as Hartford, Connecticut.
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.
- 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.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 21.09 miles (33.94 km) NW | Chicago Midway International Airport (MDW) | Chicago, Illinois, United States |     |
| 2 | 23.79 miles (38.29 km) ESE | Porter County Regional Airport (VPZ) | Valparaiso, Indiana, United States | |
| 3 | 31.13 miles (50.09 km) ENE | Michigan City Municipal Airport (MGC) | Michigan City, Indiana, United States | |
| 4 | 35.18 miles (56.62 km) E | La Porte Municipal Airport (LPO) | La Porte, Indiana, United States | |
| 5 | 35.18 miles (56.62 km) E | La Porte Municipal Airport (PPO) | La Porte, Indiana, United States | |
| 6 | 35.31 miles (56.82 km) W | Lewis University Airport (LOT) | Chicago / Romeoville, Illinois, United States | |
| 7 | 35.62 miles (57.32 km) NW | Chicago O'Hare International Airport (ORD) | Chicago, Illinois, United States | |
| 8 | 40.02 miles (64.40 km) W | Joliet Regional Airport (JOT) | Joliet, Illinois, United States | |
| 9 | 42.61 miles (68.58 km) NW | Chicago Executive Airport (PWK) | Chicago/Prospect Heights/Wheeling, Illinois, United States | |
| 10 | 43.86 miles (70.59 km) SSW | Greater Kankakee Airport (IKK) | Kankakee, Illinois, United States | |
| 11 | 47.51 miles (76.46 km) WNW | DuPage Airport (DPA) | West Chicago, Illinois, United States | |
| 12 | 47.72 miles (76.80 km) SSE | Jasper County Airport (RNZ) | Rensselaer, Indiana, United States | |
| 13 | 55.87 miles (89.92 km) WNW | Chicago/Aurora Municipal Airport (AUZ) | Aurora, Illinois, United States | |
| 14 | 56.91 miles (91.58 km) E | South Bend International Airport (SBN) | South Bend, Indiana, United States | |
| 15 | 59.27 miles (95.39 km) S | Kentland Municipal Airport (KKT) | Kentland, Indiana, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,102.62 miles (17,867.88 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,079.27 miles (17,830.32 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,062.07 miles (17,802.63 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,054.66 miles (17,790.71 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,010.29 miles (17,719.30 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,999.39 miles (17,701.76 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 7 | 10,997.22 miles (17,698.27 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 10,986.99 miles (17,681.80 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,967.20 miles (17,649.95 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 10,963.86 miles (17,644.57 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,913.20 miles (17,563.05 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,881.54 miles (17,512.10 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,870.92 miles (17,495.01 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,861.60 miles (17,480.01 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,822.03 miles (17,416.32 km) SW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 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 | |