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

Arrival Airport:

Distance from SEA to OSA:
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- About this route
- SEA Airport Information
- OSA Airport Information
- Facts about SEA
- Facts about OSA
- 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 OSA
- List of Nearest Airports to OSA
- Map of Furthest Airports from OSA
- List of Furthest Airports from OSA
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and Osaka International Airport (OSA), Osaka, Japan would travel a Great Circle distance of 5,002 miles (or 8,050 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 Osaka 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 Seattle–Tacoma International Airport and Osaka 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: | SEA / KSEA |
Airport Names: |
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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: | OSA / |
Airport Names: |
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Location: | Osaka, Japan |
GPS Coordinates: | 34°47'3"N by 135°26'21"E |
Area Served: | Osaka, Kyoto, and Kobe |
Operator/Owner: | Ministry of Land, Infrastructure and Transport (airfield); Osaka International Airport Terminal Co., Ltd. (terminal) |
Airport Type: | Public |
Elevation: | 39 feet (12 meters) |
# of Runways: | 2 |
View all routes: | Routes from OSA |
More Information: | OSA Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- 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.
- 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.
- 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.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- 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.
- Starting in the late 1980s, the Port of Seattle and a council representing local county governments considered the future of air traffic in the region and predicted that airport could reach capacity by 2000.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- Seattle–Tacoma International Airport (SEA) has 3 runways.
- The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
- 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.
- There is also a scheduled bus service to downtown Vancouver, Canada, through Quick Shuttle, with other pick-up stops at downtown Seattle, Bellingham International Airport, and drop-off stops just inside the Canadian–U.S.
Facts about Osaka International Airport (OSA):
- Osaka International Airport or Osaka-Itami International Airport is the primary domestic airport for the Kansai region of Japan, including the major cities of Osaka, Kyoto, and Kobe.
- In addition to being known as "Osaka International Airport", other names for OSA include "Itami International Airport", "大阪国際空港", "Ōsaka Kokusai Kūkō", "ITM" and "RJOO".
- The policy of the Japanese government has been to limit operations at Itami in order to spur development at Kansai and Kobe.
- Because of Osaka International Airport's relatively low elevation of 39 feet, planes can take off or land at Osaka 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 Osaka International Airport (OSA) is Rio Grande Regional Airport (RIG), which is located 11,960 miles (19,248 kilometers) away in Rio Grande, Brazil.
- Construction began in July 1936 on a 53 ha site.
- The closest airport to Osaka International Airport (OSA) is Osaka International Airport (ITM), which is located only 0 mile (0 kilometer) N of OSA.
- In February 1974, the Osaka District Court issued a qualified ruling in favor of the plaintiffs which limited the scope of their damages.
- Osaka International Airport (OSA) has 2 runways.
- Itami was renamed Osaka Airport following its return to Japanese control in March 1959.
- On the other hand, the Japanese government has historically supported Kansai at Itami's expense, and current Osaka City mayor and former Osaka Prefecture governor Toru Hashimoto has been a particularly vocal critic of the airport, arguing that the Chuo Shinkansen maglev line will make much of its domestic role irrelevant, and that its domestic functions should be transferred to Kansai in conjunction with upgraded high-speed access to Kansai from central Osaka.