Nonstop flight route between Port Alexander, Alaska, United States and Cairns, Queensland, Australia:
Departure Airport:

Arrival Airport:

Distance from PTD to CNS:
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- About this route
- PTD Airport Information
- CNS Airport Information
- Facts about PTD
- Facts about CNS
- Map of Nearest Airports to PTD
- List of Nearest Airports to PTD
- Map of Furthest Airports from PTD
- List of Furthest Airports from PTD
- Map of Nearest Airports to CNS
- List of Nearest Airports to CNS
- Map of Furthest Airports from CNS
- List of Furthest Airports from CNS
About this route:
A direct, nonstop flight between Port Alexander Seaplane Base (PTD), Port Alexander, Alaska, United States and Cairns Airport (CNS), Cairns, Queensland, Australia would travel a Great Circle distance of 6,797 miles (or 10,938 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 Port Alexander Seaplane Base and Cairns 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 Port Alexander Seaplane Base and Cairns Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | PTD / PAAP |
Airport Names: |
|
Location: | Port Alexander, Alaska, United States |
GPS Coordinates: | 56°14'48"N by 134°38'53"W |
Area Served: | Port Alexander, Alaska |
Operator/Owner: | Alaska DOT&PF - Southeast Region |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from PTD |
More Information: | PTD Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CNS / YBCS |
Airport Name: | Cairns Airport |
Location: | Cairns, Queensland, Australia |
GPS Coordinates: | 16°53'12"S by 145°45'17"E |
Area Served: | Cairns, Queensland, Australia |
Operator/Owner: | North Queensland Airports Group |
Airport Type: | Public |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from CNS |
More Information: | CNS Maps & Info |
Facts about Port Alexander Seaplane Base (PTD):
- Because of Port Alexander Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Port Alexander 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.
- The furthest airport from Port Alexander Seaplane Base (PTD) is Port Alfred Airport (AFD), which is located 10,640 miles (17,123 kilometers) away in Port Alfred, South Africa.
- Port Alexander Seaplane Base has one seaplane landing area designated N/S which measures 3,000 by 300 feet.
- Port Alexander Seaplane Base is a state owned, public use seaplane base located in Port Alexander, a city at the southeastern corner of Baranof Island in the Petersburg Census Area of the U.S.
- Port Alexander Seaplane Base (PTD) currently has only 1 runway.
- As per Federal Aviation Administration records, the airport had 139 passenger boardings in calendar year 2008, 189 enplanements in 2009, and 146 in 2010.
- The closest airport to Port Alexander Seaplane Base (PTD) is Point Baker Seaplane Base (KPB), which is located 40 miles (64 kilometers) E of PTD.
- In addition to being known as "Port Alexander Seaplane Base", another name for PTD is "AHP".
Facts about Cairns Airport (CNS):
- Cairns Airport is an international airport in Cairns, Queensland, Australia.
- Short-term and long-term parking, including a covered car park and parking for people with a disability are located within the public carparks adjacent to both the Domestic and International Terminals.
- Cairns Airport (CNS) currently has only 1 runway.
- Cairns Airport handled 3,848,728 passengers last year.
- During the 1970s, Australia's two domestic airlines Trans Australia Airlines and Ansett provided regular scheduled services to most Australian capital cities and also Papua New Guinea, while in 1975 Air Niugini became the first international airline to commence flights out of Cairns, to Port Moresby in Papua New Guinea.
- During World War II the Australian Government bought the airport for use by the Royal Australian Air Force.
- The furthest airport from Cairns Airport (CNS) is Agostinho Neto Airport (NTO), which is located 11,832 miles (19,041 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
- The closest airport to Cairns Airport (CNS) is Mareeba Airfield (MRG), which is located 26 miles (41 kilometers) WSW of CNS.
- Because of Cairns Airport's relatively low elevation of 10 feet, planes can take off or land at Cairns 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.