Nonstop flight route between Altenrhein, Switzerland and Arapahoe County, Colorado, United States:
Departure Airport:

Arrival Airport:

Distance from ACH to APA:
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- About this route
- ACH Airport Information
- APA Airport Information
- Facts about ACH
- Facts about APA
- Map of Nearest Airports to ACH
- List of Nearest Airports to ACH
- Map of Furthest Airports from ACH
- List of Furthest Airports from ACH
- Map of Nearest Airports to APA
- List of Nearest Airports to APA
- Map of Furthest Airports from APA
- List of Furthest Airports from APA
About this route:
A direct, nonstop flight between St. Gallen–Altenrhein Airport (ACH), Altenrhein, Switzerland and Centennial Airport (APA), Arapahoe County, Colorado, United States would travel a Great Circle distance of 5,201 miles (or 8,370 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 St. Gallen–Altenrhein Airport and Centennial 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 St. Gallen–Altenrhein Airport and Centennial Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | ACH / LSZR |
Airport Names: |
|
Location: | Altenrhein, Switzerland |
GPS Coordinates: | 47°29'7"N by 9°33'39"E |
Area Served: | St. Gallen, Switzerland and Lake Constance |
Elevation: | 1306 feet (398 meters) |
# of Runways: | 2 |
View all routes: | Routes from ACH |
More Information: | ACH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | APA / KAPA |
Airport Name: | Centennial Airport |
Location: | Arapahoe County, Colorado, United States |
GPS Coordinates: | 39°34'12"N by 104°50'57"W |
Area Served: | Denver, Colorado |
Operator/Owner: | Arapahoe County Public Airport Authority |
Airport Type: | Public |
Elevation: | 5885 feet (1,794 meters) |
# of Runways: | 3 |
View all routes: | Routes from APA |
More Information: | APA Maps & Info |
Facts about St. Gallen–Altenrhein Airport (ACH):
- St. Gallen–Altenrhein Airport (ACH) has 2 runways.
- The furthest airport from St. Gallen–Altenrhein Airport (ACH) is Chatham Islands (CHT), which is nearly antipodal to St. Gallen–Altenrhein Airport (meaning St. Gallen–Altenrhein Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,051 miles (19,394 kilometers) away in Waitangi, Chatham Islands, New Zealand.
- The closest airport to St. Gallen–Altenrhein Airport (ACH) is Hohenems-Dornbirn Airport (HOH), which is located only 10 miles (15 kilometers) SE of ACH.
- The airport features a small passenger terminal building and some apron and hangar stands for aircraft such as the Embraer 170, business jets or general aviation planes such as the Cessna 172.
- In addition to being known as "St. Gallen–Altenrhein Airport", another name for ACH is "People's Business Airport".
- The paved, eastbound runway 10 is equipped with an Instrument landing system.
Facts about Centennial Airport (APA):
- In 1985 a new control tower was built.
- The closest airport to Centennial Airport (APA) is Denver International Airport (DEN), which is located 22 miles (36 kilometers) NNE of APA.
- Because of Centennial Airport's high elevation of 5,885 feet, planes must typically fly at a faster airspeed in order to takeoff or land at APA. Combined with a high temperature, this could make APA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Centennial Airport (APA) has 3 runways.
- The furthest airport from Centennial Airport (APA) is Sir Gaëtan Duval Airport (RRG), which is located 10,899 miles (17,540 kilometers) away in Rodrigues Island, Mauritius.
- Centennial Airport does not offer scheduled airline passenger service.
- Located in Dove Valley, an unincorporated area of Arapahoe County, the airport’s runways extend into Douglas County.
- Centennial Airport covers 1,400 acres at an elevation of 5,885 feet.