Nonstop flight route between Coatesville, Pennsylvania, United States and Mahé, Seychelles:
Departure Airport:

Arrival Airport:

Distance from CTH to SEZ:
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- About this route
- CTH Airport Information
- SEZ Airport Information
- Facts about CTH
- Facts about SEZ
- 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 SEZ
- List of Nearest Airports to SEZ
- Map of Furthest Airports from SEZ
- List of Furthest Airports from SEZ
About this route:
A direct, nonstop flight between Chester County G. O. Carlson Airport (CTH), Coatesville, Pennsylvania, United States and Seychelles International Airport (SEZ), Mahé, Seychelles would travel a Great Circle distance of 8,559 miles (or 13,774 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 Seychelles International 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 Chester County G. O. Carlson Airport and Seychelles International Airport. 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: |
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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: | SEZ / FSIA |
Airport Names: |
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Location: | Mahé, Seychelles |
GPS Coordinates: | 4°40'27"S by 55°31'18"E |
Area Served: | Victoria |
Operator/Owner: | SCAA (Seychelles Civil Aviation Authority) |
Airport Type: | Public / Military |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from SEZ |
More Information: | SEZ Maps & Info |
Facts about Chester County G. O. Carlson Airport (CTH):
- 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.
- 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.
- The airport opened May 1, 1928 as Coatesville Airport and was owned and operated by the City of Coatesville.
- The airport covers 250 acres.
- In addition to being known as "Chester County G. O. Carlson Airport", another name for CTH is "MQS".
- 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.
Facts about Seychelles International Airport (SEZ):
- A domestic terminal is a short walking distance north of the international terminal and offers inter-island flights with a peak of a departure every 10–15 minutes at busy times which corresponds with international arrivals/departures and every 30 minutes at other times.
- Because of Seychelles International Airport's relatively low elevation of 10 feet, planes can take off or land at Seychelles 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.
- Seychelles International Airport (SEZ) currently has only 1 runway.
- The furthest airport from Seychelles International Airport (SEZ) is Atuona Airport (AUQ), which is located 11,024 miles (17,741 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- The closest airport to Seychelles International Airport (SEZ) is Praslin Island Airport (PRI), which is located 27 miles (44 kilometers) NNE of SEZ.
- In addition to being known as "Seychelles International Airport", another name for SEZ is "Aéroport International de Seychelles – Pointe Larue".
- In 1972 John Faulkner Taylor founded the first local aircraft company called Air Mahé, which operated a Piper PA-34 Seneca between Praslin, Fregate and Mahé Islands.