Nonstop flight route between Coatesville, Pennsylvania, United States and Metlakatla, Annette Island, Alaska, United States:
Departure Airport:
(39°58'44"N by 75°51'56"W)
Arrival Airport:
(55°7'51"N by 131°34'41"W)
Distance from CTH to MTM:
2,714.72 miles (4,368.91 km)
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- About this route
- CTH Airport Information
- MTM Airport Information
- Facts about CTH
- Facts about MTM
- Map of Nearest Airports to CTH
- List of Nearest Airports to CTH
- Map of Furthest Airports from CTH
- List of Furthest Airports from CTH
- Map of Nearest Airports to MTM
- List of Nearest Airports to MTM
- Map of Furthest Airports from MTM
- List of Furthest Airports from MTM
About this route:
A direct, nonstop flight between Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States and Metlakatla Seaplane Base (MTM), Metlakatla, Annette Island, Alaska, United States would travel a Great Circle distance of 2,715 miles (or 4,369 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 Chester County G. O. Carlson Airport and Metlakatla Seaplane Base, 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 Chester County G. O. Carlson Airport and Metlakatla Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
| IATA / ICAO Codes: | MTM / PAMM |
| Airport Name: | Metlakatla Seaplane Base |
| Location: | Metlakatla, Annette Island, Alaska, United States |
| GPS Coordinates: | 55°7'51"N by 131°34'41"W |
| Area Served: | Metlakatla, Alaska |
| Operator/Owner: | Alaska DOT&PF - Southeast Region |
| Airport Type: | Public |
| Elevation: | 0 feet (0 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from MTM |
| More Information: | MTM Maps & Info |
Facts about Chester County G. O. Carlson Airport (CTH):
- The airport opened May 1, 1928 as Coatesville Airport and was owned and operated by the City of Coatesville.
- Chester County G. O. Carlson Airport (CTH) currently has only 1 runway.
- 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.
- 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.
- In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
- 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.
Facts about Metlakatla Seaplane Base (MTM):
- Metlakatla Seaplane Base (MTM) has 2 runways.
- The furthest airport from Metlakatla Seaplane Base (MTM) is Port Alfred Airport (AFD), which is located 10,621 miles (17,093 kilometers) away in Port Alfred, South Africa.
- The closest airport to Metlakatla Seaplane Base (MTM) is Annette Island Airport (ANN), which is located only 6 miles (10 kilometers) S of MTM.
- Because of Metlakatla Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Metlakatla Seaplane Base 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.
- Metlakatla Seaplane Base is a state owned, public use seaplane base located in Metlakatla, a community on Annette Island in the Prince of Wales-Hyder Census Area of the U.S.
| 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 | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 6.13 miles (9.86 km) S | Annette Island Airport (ANN) | Annette Island, Alaska, United States | |
| 2 | 15.12 miles (24.33 km) NNW | Ketchikan Harbor Seaplane Base (WFB) | Ketchikan, Alaska, United States | |
| 3 | 16.28 miles (26.20 km) NNW | Ketchikan International Airport (KTN) | Ketchikan, Alaska, United States | |
| 4 | 48.03 miles (77.30 km) WNW | Hollis Clark Bay Seaplane Base (HYL) | Hollis, Alaska, United States | |
| 5 | 49.61 miles (79.84 km) W | Hydaburg Seaplane Base (HYG) | Hydaburg, Alaska, United States | |
| 6 | 53.80 miles (86.58 km) NW | Thorne Bay Seaplane Base (KTB) | Thorne Bay, Alaska, United States | |
| 7 | 66.24 miles (106.61 km) WNW | Craig Seaplane Base (CGA) | Craig, Alaska, United States | |
| 8 | 66.49 miles (107.00 km) WNW | Klawock Airport (KLW) | Klawock, Alaska, United States | |
| 9 | 66.63 miles (107.23 km) W | Waterfall Seaplane Base (KWF) | Waterfall, Alaska, United States | |
| 10 | 73.87 miles (118.89 km) SE | Prince Rupert Airport (YPR) | Prince Rupert, British Columbia, Canada | |
| 11 | 75.56 miles (121.61 km) SE | Prince Rupert/Seal Cove Water Airport (ZSW) | Prince Rupert, British Columbia, Canada | |
| 12 | 78.32 miles (126.04 km) NW | Coffman Cove Seaplane Base (KCC) | Coffman Cove, Alaska, United States | |
| 13 | 79.35 miles (127.71 km) SSW | Masset Airport (ZMT) | Masset, British Columbia, Canada | |
| 14 | 81.39 miles (130.99 km) NE | Hyder Seaplane Base (WHD) | Hyder, Alaska, United States | |
| 15 | 81.45 miles (131.09 km) NW | Naukati Bay Seaplane Base (WNC) | Tuxekan Island, Alaska, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,621.06 miles (17,092.89 km) SE | Port Alfred Airport (AFD) | Port Alfred, South Africa | |
| 2 | 10,614.48 miles (17,082.30 km) SE | East London Airport (ELS) | East London, South Africa | |
| 3 | 10,611.60 miles (17,077.67 km) SE | Port Elizabeth International Airport (PLZ) | Port Elizabeth, South Africa | |
| 4 | 10,543.67 miles (16,968.36 km) SE | Mthatha Airport (UTT) | Mthatha, South Africa | |
| 5 | 10,539.88 miles (16,962.25 km) SE | Margate Airport (MGH) | Margate, KwaZulu-Natal, South Africa | |
| 6 | 10,516.90 miles (16,925.27 km) SE | George Airport (GRJ) | George, South Africa | |
| 7 | 10,477.12 miles (16,861.25 km) SSE | King Shaka International (DUR) | Durban, KwaZulu-Natal, South Africa | |
| 8 | 10,463.52 miles (16,839.37 km) SE | Pietermaritzburg Airport (PZB) | Pietermaritzburg, South Africa | |
| 9 | 10,440.83 miles (16,802.84 km) SSE | Richards Bay Airport (RCB) | Richards Bay, KwaZulu-Natal, South Africa | |
| 10 | 10,438.85 miles (16,799.65 km) SE | Lebakeng Airport (LEF) | Lebakeng, Lesotho | |
| 11 | 10,423.10 miles (16,774.31 km) SE | Lesobeng Airport (LES) | Lesobeng, Lesotho | |
| 12 | 10,421.11 miles (16,771.11 km) SE | Semonkong Airport (SOK) | Semonkong, Lesotho | |
| 13 | 10,410.01 miles (16,753.24 km) SE | Mokhotlong Airport (MKH) | Mokhotlong, Lesotho | |
| 14 | 10,398.50 miles (16,734.71 km) SE | Mafeteng Airport (MFC) | Mafeteng, Lesotho | |
| 15 | 10,396.65 miles (16,731.75 km) SSE | Hluhluwe Airport (HLW) | Hluhluwe, South Africa | |