Nonstop flight route between Old Harbor, Alaska, United States and Coatesville, Pennsylvania, United States:
Departure Airport:
(57°13'5"N by 153°16'9"W)
Arrival Airport:
(39°58'44"N by 75°51'56"W)
Distance from OLH to CTH:
3,516.93 miles (5,659.93 km)
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Jump to:
- About this route
- OLH Airport Information
- CTH Airport Information
- Facts about OLH
- Facts about CTH
- Map of Nearest Airports to OLH
- List of Nearest Airports to OLH
- Map of Furthest Airports from OLH
- List of Furthest Airports from OLH
- Map of Nearest Airports to CTH
- List of Nearest Airports to CTH
- Map of Furthest Airports from CTH
- List of Furthest Airports from CTH
About this route:
A direct, nonstop flight between Old Harbor Airport (OLH), Old Harbor, Alaska, United States and Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States would travel a Great Circle distance of 3,517 miles (or 5,660 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 Old Harbor Airport and Chester County G. O. Carlson 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 Old Harbor Airport and Chester County G. O. Carlson Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | OLH / |
| Airport Names: |
|
| Location: | Old Harbor, Alaska, United States |
| GPS Coordinates: | 57°13'5"N by 153°16'9"W |
| Area Served: | Old Harbor, Alaska |
| Operator/Owner: | State of Alaska DOT&PF - Central Region |
| Airport Type: | Public |
| Elevation: | 55 feet (17 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from OLH |
| More Information: | OLH Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | CTH / KMQS |
| Airport Names: |
|
| Location: | Coatesville, Pennsylvania, United States |
| GPS Coordinates: | 39°58'44"N by 75°51'56"W |
| Operator/Owner: | Chester County Area Airport Authority |
| Airport Type: | Public |
| Elevation: | 660 feet (201 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CTH |
| More Information: | CTH Maps & Info |
Facts about Old Harbor Airport (OLH):
- Old Harbor Airport resides at elevation of 55 feet above mean sea level.
- Old Harbor Airport is a state owned, public use airport located two nautical miles northeast of the central business district of Old Harbor, a city in the Kodiak Island Borough in the U.S.
- Because of Old Harbor Airport's relatively low elevation of 55 feet, planes can take off or land at Old Harbor 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 Old Harbor Airport (OLH) is Amook Bay Seaplane Base (AOS), which is located 27 miles (43 kilometers) NW of OLH.
- In addition to being known as "Old Harbor Airport", another name for OLH is "6R7".
- The furthest airport from Old Harbor Airport (OLH) is Port Elizabeth International Airport (PLZ), which is located 10,831 miles (17,430 kilometers) away in Port Elizabeth, South Africa.
- Old Harbor Airport (OLH) currently has only 1 runway.
Facts about Chester County G. O. Carlson Airport (CTH):
- The closest airport to Chester County G. O. Carlson Airport (CTH) is Brandywine Airport (OQN), which is located only 15 miles (24 kilometers) E of CTH.
- As part of the 12-year-plan for the airport, many projects are planned.
- The furthest airport from Chester County G. O. Carlson Airport (CTH) is Margaret River Airport (MGV), which is located 11,702 miles (18,833 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Chester County G. O. Carlson Airport's relatively low elevation of 660 feet, planes can take off or land at Chester County G. O. Carlson 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.
- Chester County G. O. Carlson Airport (CTH) currently has only 1 runway.
- In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 26.84 miles (43.19 km) NW | Amook Bay Seaplane Base (AOS) | Amook Bay, Alaska, United States |     |
| 2 | 29.17 miles (46.94 km) NW | Zachar Bay Seaplane Base (KZB) | Zachar Bay, Alaska, United States | |
| 3 | 34.25 miles (55.12 km) NW | Larsen Bay Airport (KLN) | Larsen Bay, Alaska, United States | |
| 4 | 35.42 miles (57.01 km) N | San Juan (Uganik) Seaplane Base (UGI) | Uganik Island, United States | |
| 5 | 35.48 miles (57.09 km) WSW | Moser Bay Seaplane Base (KMY) | Moser Bay, Kodiak Island Borough, Alaska, United States | |
| 6 | 36.18 miles (58.22 km) W | Olga Bay Seaplane Base (KOY) | Olga Bay, Kodiak Island Borough, Alaska, United States | |
| 7 | 39.37 miles (63.36 km) WSW | Akhiok Airport (AKK) | Akhiok, Alaska, United States | |
| 8 | 39.51 miles (63.58 km) NNW | West Point Village Seaplane Base (KWP) | West Point, Kodiak Island Borough, Alaska, United States | |
| 9 | 42.86 miles (68.98 km) WSW | Alitak Seaplane Base (ALZ) | Lazy Bay, Alaska, United States | |
| 10 | 46.66 miles (75.09 km) NE | Kodiak Benny Benson State Airport (ADQ) | Kodiak, Alaska, United States | |
| 11 | 48.68 miles (78.34 km) NNE | Port Lions Airport (ORI) | Port Lions, Alaska, United States | |
| 12 | 49.90 miles (80.30 km) N | Port Bailey Seaplane Base (KPY) | Port Bailey, Kodiak Island Borough, Alaska, United States | |
| 13 | 50.23 miles (80.84 km) WNW | Karluk Airport (KYK) | Karluk, Alaska, United States | |
| 14 | 52.46 miles (84.42 km) NE | Kodiak Municipal Airport (KDK) | Kodiak, Alaska, United States | |
| 15 | 58.21 miles (93.69 km) NNE | Ouzinkie Airport (KOZ) | Ouzinkie, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,830.65 miles (17,430.20 km) S | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 2 | 10,820.09 miles (17,413.20 km) S | George Airport (GRJ) | George, South Africa | |
| 3 | 10,801.75 miles (17,383.68 km) S | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 4 | 10,785.74 miles (17,357.93 km) SSE | Cape Town International Airport (CPT) | Cape Town, South Africa | |
| 5 | 10,765.10 miles (17,324.70 km) S | East London Airport (ELS) | East London, South Africa | |
| 6 | 10,660.61 miles (17,156.55 km) S | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 7 | 10,607.36 miles (17,070.85 km) S | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 8 | 10,546.37 miles (16,972.69 km) S | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 9 | 10,543.94 miles (16,968.78 km) S | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 10 | 10,542.27 miles (16,966.10 km) S | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 11 | 10,537.68 miles (16,958.71 km) S | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,523.55 miles (16,935.98 km) S | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 13 | 10,518.62 miles (16,928.04 km) S | Moshoeshoe I International Airport (MSU) | Maseru, Lesotho | |
| 14 | 10,518.01 miles (16,927.06 km) S | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 15 | 10,503.23 miles (16,903.27 km) S | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 15.03 miles (24.20 km) E | Brandywine Airport (OQN) | West Chester, Pennsylvania, United States | |
| 2 | 24.30 miles (39.11 km) NE | Heritage Field (PTW) | Pottstown, Pennsylvania, United States | |
| 3 | 24.75 miles (39.83 km) WNW | Lancaster Airport (LNS) | Lancaster, Pennsylvania, United States | |
| 4 | 24.88 miles (40.04 km) SSE | Wilmington/Philadelphia Regional Airport (ILG) | Wilmington, Delaware, United States | |
| 5 | 28.12 miles (45.25 km) N | Reading Regional Airport (RDG) | Reading, Pennsylvania, United States | |
| 6 | 31.06 miles (49.99 km) ESE | Philadelphia Seaplane BaseChandler Field (PSQ) | Essington, Pennsylvania, United States | |
| 7 | 33.60 miles (54.07 km) ENE | Wings Field (BBX) | Blue Bell, Pennsylvania, United States | |
| 8 | 33.90 miles (54.56 km) ESE | Philadelphia International Airport (PHL) | Philadelphia, Pennsylvania, United States | |
| 9 | 38.92 miles (62.64 km) SSW | Phillips Army Airfield (APG) | Aberdeen Proving Ground, Maryland, United States | |
| 10 | 40.68 miles (65.47 km) NE | Quakertown Airport (UKT) | Quakertown, Pennsylvania, United States | |
| 11 | 40.88 miles (65.78 km) ENE | NAS JRB Willow Grove (NXX) | Willow Grove, Pennsylvania, United States | |
| 12 | 45.79 miles (73.69 km) E | Northeast Philadelphia Airport (PNE) | Philadelphia, Pennsylvania, United States | |
| 13 | 46.27 miles (74.46 km) ENE | Doylestown Airport (DYL) | Doylestown, Pennsylvania, United States | |
| 14 | 48.69 miles (78.35 km) NW | Muir Army Airfield (MUI) | Fort Indiantown Gap, Pennsylvania, United States | |
| 15 | 49.71 miles (80.00 km) WNW | Harrisburg International Airport (MDT) | Harrisburg, Pennsylvania, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,702.01 miles (18,832.51 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,678.10 miles (18,794.03 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,667.54 miles (18,777.04 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,652.33 miles (18,752.56 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,611.27 miles (18,686.48 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,595.51 miles (18,661.12 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,585.34 miles (18,644.76 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,574.24 miles (18,626.89 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,573.79 miles (18,626.17 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,528.51 miles (18,553.30 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,458.37 miles (18,440.41 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,432.86 miles (18,399.36 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,411.64 miles (18,365.21 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 11,409.61 miles (18,361.93 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 15 | 11,368.76 miles (18,296.21 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |