Nonstop flight route between SeaTac (near Seattle and Tacoma), Washington, United States and Bayankhongor, Mongolia:
Departure Airport:

Arrival Airport:

Distance from SEA to BYN:
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- About this route
- SEA Airport Information
- BYN Airport Information
- Facts about SEA
- Facts about BYN
- 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 BYN
- List of Nearest Airports to BYN
- Map of Furthest Airports from BYN
- List of Furthest Airports from BYN
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Bayankhongor Airport (BYN), Bayankhongor, Mongolia would travel a Great Circle distance of 5,466 miles (or 8,796 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 Bayankhongor 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 Bayankhongor 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: | BYN / ZMBH |
Airport Name: | Bayankhongor Airport |
Location: | Bayankhongor, Mongolia |
GPS Coordinates: | 46°10'14"N by 100°42'0"E |
Operator/Owner: | Civil Aviation Authority of Mongolia |
Airport Type: | Joint (Civil and Military) |
Elevation: | 6085 feet (1,855 meters) |
# of Runways: | 2 |
View all routes: | Routes from BYN |
More Information: | BYN Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- 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.
- Interstate 5 and its offshoot Interstate 405 intersect very close to the airport, and most people use private vehicles to arrive at the airport.
- The airport has service to destinations throughout North America, Europe, the Middle East, and East Asia.
- 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.
- Seattle's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- 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.
- The two-story North Concourse added four new gate positions and a new wing 600 feet long and 30 feet wide.
- The Seattle–Tacoma International Airport, also known as Sea–Tac Airport or Sea–Tac /ˈsiːtæk/, is an American airport.
Facts about Bayankhongor Airport (BYN):
- The furthest airport from Bayankhongor Airport (BYN) is Cochrane Airfield (LGR), which is nearly antipodal to Bayankhongor Airport (meaning Bayankhongor Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,110 miles (19,490 kilometers) away in Cochrane, Chile.
- Bayankhongor Airport (BYN) has 2 runways.
- The closest airport to Bayankhongor Airport (BYN) is Arvaykheer Airport (AVK), which is located 101 miles (162 kilometers) E of BYN.
- Because of Bayankhongor Airport's high elevation of 6,085 feet, planes must typically fly at a faster airspeed in order to takeoff or land at BYN. Combined with a high temperature, this could make BYN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Bayankhongor Airport handled 2,192 passengers last year.