Nonstop flight route between Gladwin, Michigan, United States and Smithton, Tasmania, Australia:
Departure Airport:
(43°58'14"N by 84°28'29"W)
Arrival Airport:
(40°50'6"S by 145°4'59"E)
Distance from GDW to SIO:
9,937.22 miles (15,992.36 km)
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Jump to:
- About this route
- GDW Airport Information
- SIO Airport Information
- Facts about GDW
- Facts about SIO
- Map of Nearest Airports to GDW
- List of Nearest Airports to GDW
- Map of Furthest Airports from GDW
- List of Furthest Airports from GDW
- Map of Nearest Airports to SIO
- List of Nearest Airports to SIO
- Map of Furthest Airports from SIO
- List of Furthest Airports from SIO
About this route:
A direct, nonstop flight between Gladwin Zettel Memorial Airport (GDW), Gladwin, Michigan, United States and Smithton Airport (SIO), Smithton, Tasmania, Australia would travel a Great Circle distance of 9,937 miles (or 15,992 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 Gladwin Zettel Memorial Airport and Smithton 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 Gladwin Zettel Memorial Airport and Smithton Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | GDW / KGDW |
| Airport Name: | Gladwin Zettel Memorial Airport |
| Location: | Gladwin, Michigan, United States |
| GPS Coordinates: | 43°58'14"N by 84°28'29"W |
| Area Served: | Gladwin, Michigan |
| Operator/Owner: | City/County of Gladwin |
| Airport Type: | Public |
| Elevation: | 774 feet (236 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from GDW |
| More Information: | GDW Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | SIO / YSMI |
| Airport Name: | Smithton Airport |
| Location: | Smithton, Tasmania, Australia |
| GPS Coordinates: | 40°50'6"S by 145°4'59"E |
| Operator/Owner: | DIER |
| Airport Type: | Public |
| Elevation: | 31 feet (9 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from SIO |
| More Information: | SIO Maps & Info |
Facts about Gladwin Zettel Memorial Airport (GDW):
- Because of Gladwin Zettel Memorial Airport's relatively low elevation of 774 feet, planes can take off or land at Gladwin Zettel Memorial 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.
- For the 12-month period ending December 31, 2009, the airport had 4,454 general aviation aircraft operations, an average of 12 per day.
- Gladwin Zettel Memorial Airport (GDW) has 2 runways.
- The furthest airport from Gladwin Zettel Memorial Airport (GDW) is Margaret River Airport (MGV), which is located 11,182 miles (17,995 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gladwin Zettel Memorial Airport (GDW) is Mount Pleasant Municipal Airport (MOP), which is located 27 miles (44 kilometers) SSW of GDW.
Facts about Smithton Airport (SIO):
- The closest airport to Smithton Airport (SIO) is Burnie Airport (BWT), which is located 36 miles (57 kilometers) ESE of SIO.
- Because of Smithton Airport's relatively low elevation of 31 feet, planes can take off or land at Smithton 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 furthest airport from Smithton Airport (SIO) is Corvo Airport (CVU), which is nearly antipodal to Smithton Airport (meaning Smithton Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,221 miles (19,667 kilometers) away in Corvo Island, Azores, Portugal.
- Smithton Airport (SIO) has 2 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 27.43 miles (44.15 km) SSW | Mount Pleasant Municipal Airport (MOP) | Mount Pleasant, Michigan, United States |     |
| 2 | 28.59 miles (46.01 km) NNW | Roscommon County - Blodgett Memorial Airport (HTL) | Houghton Lake, Michigan, United States | |
| 3 | 36.11 miles (58.12 km) SSE | MBS International Airport (MBS) | Midland/Bay City/Saginaw, Michigan, United States | |
| 4 | 46.05 miles (74.10 km) SSW | Gratiot Community Airport (AMN) | Alma, Michigan, United States | |
| 5 | 51.33 miles (82.61 km) WNW | Wexford County Airport (CAD) | Cadillac, Michigan, United States | |
| 6 | 52.06 miles (83.78 km) W | Nartron Field (RCT) | Reed City, Michigan, United States | |
| 7 | 54.07 miles (87.02 km) WSW | Roben-Hood Airport (WBR) | Big Rapids, Michigan, United States | |
| 8 | 63.01 miles (101.40 km) ENE | Oscoda-Wurtsmith Airport (OSC) | Oscoda, Michigan, United States | |
| 9 | 72.90 miles (117.33 km) N | Gaylord Regional Airport (GLR) | Gaylord, Michigan, United States | |
| 10 | 76.36 miles (122.88 km) NW | Cherry Capital Airport (TVC) | Traverse City, Michigan, United States | |
| 11 | 78.53 miles (126.38 km) SSE | Bishop International Airport (FNT) | Flint, Michigan, United States | |
| 12 | 78.86 miles (126.92 km) NNW | Antrim County Airport (ACB) | Bellaire, Michigan, United States | |
| 13 | 82.54 miles (132.84 km) S | Capital Region International Airport (LAN) | Lansing, Michigan, United States | |
| 14 | 88.80 miles (142.91 km) NNE | Alpena County Regional Airport (APN) | Alpena, Michigan, United States | |
| 15 | 90.33 miles (145.37 km) WNW | Manistee County Blacker Airport (MBL) | Manistee, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,181.83 miles (17,995.37 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,157.86 miles (17,956.79 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,149.59 miles (17,943.48 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,131.95 miles (17,915.09 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,100.35 miles (17,864.23 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,075.06 miles (17,823.54 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,064.66 miles (17,806.80 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,056.93 miles (17,794.36 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 9 | 11,053.60 miles (17,789.00 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,012.08 miles (17,722.18 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,948.03 miles (17,619.10 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,916.79 miles (17,568.82 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,905.78 miles (17,551.11 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,899.26 miles (17,540.62 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,862.34 miles (17,481.20 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 35.67 miles (57.40 km) ESE | Burnie Airport (BWT) | Burnie, Tasmania, Australia | |
| 2 | 73.94 miles (119.00 km) ESE | Devonport Airport (DPO) | Devonport, Tasmania, Australia | |
| 3 | 91.66 miles (147.51 km) NW | King Island Airport (KNS) | Currie, Tasmania, Australia | |
| 4 | 93.21 miles (150.01 km) E | George Town Aerodrome (GEE) | George Town, Tasmania, Australia | |
| 5 | 121.20 miles (195.06 km) ESE | Launceston Airport (LST) | Launceston, Tasmania, Australia | |
| 6 | 161.33 miles (259.64 km) ENE | Flinders Island Airport (FLS) | Flinders Island, Tasmania, Australia | |
| 7 | 170.12 miles (273.78 km) ESE | St Helens Airport (HLS) | St. Helens, Tasmania, Australia | |
| 8 | 184.69 miles (297.23 km) NNW | Geelong Airport (GEX) | Grovedale, Victoria, Australia | |
| 9 | 186.35 miles (299.90 km) SE | Hobart International Airport (HBA) | Hobart, Tasmania, Australia | |
| 10 | 197.55 miles (317.93 km) N | Moorabbin Harry Hawker Airport (MBW) | Moorabbin, Victoria, Australia | |
| 11 | 199.26 miles (320.67 km) NNW | Avalon Airport (AVV) | Avalon, Victoria, Australia | |
| 12 | 214.89 miles (345.83 km) N | Essendon Airport (MEB) | Melbourne, Victoria, Australia | |
| 13 | 218.83 miles (352.17 km) N | Melbourne Airport (MEL) | Melbourne, Victoria, Australia | |
| 14 | 224.73 miles (361.67 km) NW | Warrnambool Airport (WMB) | Warrnambool, Victoria, Australia | |
| 15 | 243.06 miles (391.16 km) NE | Bairnsdale Aerodrome (BSJ) | Bairnsdale, Victoria, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,220.71 miles (19,667.28 km) WNW | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 2 | 12,215.46 miles (19,658.83 km) WNW | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 3 | 12,070.45 miles (19,425.46 km) WNW | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 4 | 12,058.33 miles (19,405.95 km) WNW | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 5 | 12,052.80 miles (19,397.06 km) WNW | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 6 | 11,997.56 miles (19,308.15 km) WNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 7 | 11,899.84 miles (19,150.89 km) WNW | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 8 | 11,849.28 miles (19,069.52 km) WNW | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 9 | 11,440.34 miles (18,411.40 km) NE | St. John's International Airport (YYT) | St. John's, Newfoundland and Labrador, Canada | |
| 10 | 11,328.58 miles (18,231.54 km) NE | Gander International Airport (YQX) | Gander, Newfoundland, Canada | |
| 11 | 11,304.72 miles (18,193.13 km) ENE | Saint-Pierre Airport (FSP) | Saint-Pierre, Saint Pierre and Miquelon, France | |
| 12 | 11,289.56 miles (18,168.75 km) ENE | Miquelon Airport (MQC) | Miquelon, Saint Pierre and Miquelon | |
| 13 | 11,289.28 miles (18,168.29 km) WNW | Madeira Airport (FNC) | Funchal, Madeira, Portugal | |
| 14 | 11,283.08 miles (18,158.32 km) WNW | Porto Santo Airport (PXO) | Porto Santo, Madeira, Portugal | |
| 15 | 11,202.50 miles (18,028.64 km) NE | Deer Lake Regional Airport (YDF) | Deer Lake, Newfoundland and Labrador, Canada | |