Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Cairns, Queensland, Australia:
Departure Airport:

Arrival Airport:

Distance from SEA to CNS:
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- About this route
- SEA Airport Information
- CNS Airport Information
- Facts about SEA
- Facts about CNS
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
- 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 Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Cairns Airport (CNS), Cairns, Queensland, Australia would travel a Great Circle distance of 7,161 miles (or 11,524 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 Seattle–Tacoma International Airport 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 Seattle–Tacoma International Airport 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: | SEA / KSEA |
Airport Names: |
|
Location: | SeaTac (near Seattle and Tacoma), Washington, United States |
GPS Coordinates: | 47°26'56"N by 122°18'33"W |
Area Served: | Seattle; Tacoma, Washington, US |
Airport Type: | Public |
Elevation: | 433 feet (132 meters) |
# of Runways: | 3 |
View all routes: | Routes from SEA |
More Information: | SEA 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 Seattle–Tacoma International Airport (SEA):
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- Citing increased landing fees and other costs due to the aforementioned work at the airport, Southwest Airlines threatened in 2005 to move to nearby Boeing Field.
- Because of Seattle–Tacoma International Airport's relatively low elevation of 433 feet, planes can take off or land at Seattle–Tacoma 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.
- The furthest airport from Seattle–Tacoma International Airport (SEA) is Tôlanaro Airport (FTU), which is located 10,781 miles (17,350 kilometers) away in Tôlanaro, Madagascar.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
- The April 1957 OAG shows 216 departures a week on United, 80 Northwest, 35 Western, 21 Trans-Canada, 20 Pan Am, 20 Pacific Northern, and 10 Alaska.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- The Seattle–Tacoma International Airport, also known as Sea–Tac Airport or Sea–Tac /ˈsiːtæk/, is an American airport.
- A 23-acre rental car facility opened on May 17, 2012.
- The closest airport to Seattle–Tacoma International Airport (SEA) is Renton Municipal Airport (RNT), which is located only 5 miles (9 kilometers) NE of SEA.
Facts about Cairns Airport (CNS):
- Cairns Airport handled 3,848,728 passengers last year.
- Cairns Airport is an international airport in Cairns, Queensland, Australia.
- 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.
- 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.
- The airport has two passenger terminals on the eastern side of the airport on reclaimed mangrove swamp.
- Cairns Airport (CNS) currently has only 1 runway.
- The closest airport to Cairns Airport (CNS) is Mareeba Airfield (MRG), which is located 26 miles (41 kilometers) WSW of CNS.
- 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.