Nonstop flight route between Newton, Iowa, United States and St. Mary's, Alaska, United States:
Departure Airport:
(41°40'27"N by 93°1'18"W)
Arrival Airport:
(62°3'38"N by 163°18'6"W)
Distance from TNU to KSM:
3,118.27 miles (5,018.35 km)
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- About this route
- TNU Airport Information
- KSM Airport Information
- Facts about TNU
- Facts about KSM
- Map of Nearest Airports to TNU
- List of Nearest Airports to TNU
- Map of Furthest Airports from TNU
- List of Furthest Airports from TNU
- 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 Newton Municipal Airport (TNU), Newton, Iowa, United States and St. Mary's Airport (KSM), St. Mary's, Alaska, United States would travel a Great Circle distance of 3,118 miles (or 5,018 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 Newton Municipal 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 Newton Municipal 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: | TNU / KTNU |
| Airport Name: | Newton Municipal Airport |
| Location: | Newton, Iowa, United States |
| GPS Coordinates: | 41°40'27"N by 93°1'18"W |
| Area Served: | Newton, Iowa |
| Operator/Owner: | City of Newton |
| Airport Type: | Public |
| Elevation: | 953 feet (290 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from TNU |
| More Information: | TNU 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 Newton Municipal Airport (TNU):
- Because of Newton Municipal Airport's relatively low elevation of 953 feet, planes can take off or land at Newton Municipal 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.
- Newton Municipal Airport (TNU) currently has only 1 runway.
- The closest airport to Newton Municipal Airport (TNU) is Ankeny Regional Airport (IKV), which is located 28 miles (45 kilometers) W of TNU.
- The furthest airport from Newton Municipal Airport (TNU) is Margaret River Airport (MGV), which is located 10,820 miles (17,412 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Mary's Airport (KSM):
- 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.
- St. Mary's Airport (KSM) has 2 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 28.13 miles (45.27 km) W | Ankeny Regional Airport (IKV) | Ankeny, Iowa, United States |     |
| 2 | 34.53 miles (55.57 km) WSW | Des Moines International Airport (DSM) | Des Moines, Iowa, United States | |
| 3 | 37.89 miles (60.97 km) NW | Ames Municipal Airport (AMW) | Ames, Iowa, United States | |
| 4 | 49.22 miles (79.22 km) SE | Ottumwa Regional Airport (OTM) | Ottumwa, Iowa, United States | |
| 5 | 49.77 miles (80.10 km) WNW | Boone Municipal Airport (BNW) | Boone, Iowa, United States | |
| 6 | 59.61 miles (95.94 km) W | Perry Municipal Airport (PRO) | Perry, Iowa, United States | |
| 7 | 68.28 miles (109.88 km) NW | Webster City Municipal Airport (EBS) | Webster City, Iowa, United States | |
| 8 | 68.79 miles (110.71 km) NNE | Waterloo Regional Airport (Livingston Betsworth Field) (ALO) | Waterloo, Iowa, United States | |
| 9 | 68.85 miles (110.80 km) SE | Fairfield Municipal Airport (FFL) | Fairfield, Iowa, United States | |
| 10 | 69.08 miles (111.18 km) ENE | The Eastern Iowa Airport (CID) | Cedar Rapids, Iowa, United States | |
| 11 | 76.19 miles (122.61 km) E | Iowa City Municipal Airport (IOW) | Iowa City, Iowa, United States | |
| 12 | 82.94 miles (133.47 km) WSW | Creston Municipal Airport (CSQ) | Creston, Iowa, United States | |
| 13 | 85.24 miles (137.19 km) NW | Fort Dodge Regional Airport (FOD) | Fort Dodge, Iowa, United States | |
| 14 | 93.13 miles (149.89 km) ESE | Mount Pleasant Municipal Airport (MPZ) | Mount Pleasant, Iowa, United States | |
| 15 | 94.49 miles (152.07 km) WNW | Arthur N. Neu Airport (CIN) | Carroll, Iowa, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,819.64 miles (17,412.48 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,796.57 miles (17,375.35 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,777.20 miles (17,344.18 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 10,772.42 miles (17,336.49 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 10,732.18 miles (17,271.73 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,718.28 miles (17,249.36 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,712.06 miles (17,239.34 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 8 | 10,708.38 miles (17,233.42 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 10,692.43 miles (17,207.75 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 10 | 10,682.12 miles (17,191.17 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 11 | 10,648.32 miles (17,136.77 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,622.44 miles (17,095.11 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,601.16 miles (17,060.87 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,595.74 miles (17,052.14 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,572.91 miles (17,015.41 km) WSW | 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 | |