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

Arrival Airport:

Distance from UIN to SEA:
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- About this route
- UIN Airport Information
- SEA Airport Information
- Facts about UIN
- Facts about SEA
- Map of Nearest Airports to UIN
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- Map of Furthest Airports from UIN
- List of Furthest Airports from UIN
- Map of Nearest Airports to SEA
- List of Nearest Airports to SEA
- Map of Furthest Airports from SEA
- List of Furthest Airports from SEA
About this route:
A direct, nonstop flight between Quincy Regional Airport (UIN), Quincy, Illinois, United States and Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States would travel a Great Circle distance of 1,626 miles (or 2,617 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 relatively short distance between Quincy Regional Airport and Seattle–Tacoma International Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | UIN / KUIN |
Airport Names: |
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Location: | Quincy, Illinois, United States |
GPS Coordinates: | 39°56'34"N by 91°11'40"W |
Area Served: | Quincy, Illinois |
Operator/Owner: | City of Quincy |
Airport Type: | Public |
Elevation: | 769 feet (234 meters) |
# of Runways: | 3 |
View all routes: | Routes from UIN |
More Information: | UIN Maps & Info |
Arrival 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 |
Facts about Quincy Regional Airport (UIN):
- The airport covers 1,101 acres at an elevation of 769 feet.
- Because of Quincy Regional Airport's relatively low elevation of 769 feet, planes can take off or land at Quincy Regional 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 closest airport to Quincy Regional Airport (UIN) is Keokuk Municipal Airport (EOK), which is located 38 miles (61 kilometers) NNW of UIN.
- On November 6, 2006, Mesa Airlines announced that new non-stop service to Chicago Midway International Airport and Kirksville Regional Airport would begin in February, 2007 operated by subsidiary Air Midwest.
- In addition to being known as "Quincy Regional Airport", another name for UIN is "Baldwin Field".
- Quincy Regional Airport (UIN) has 3 runways.
- The furthest airport from Quincy Regional Airport (UIN) is Margaret River Airport (MGV), which is located 10,933 miles (17,594 kilometers) away in Margaret River, Western Australia, Australia.
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.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- The top five carriers at the airport in number of passengers carried in 2012 were Alaska Airlines, Horizon Air, Delta Air Lines, Southwest Airlines, and United Airlines.
- The three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.
- 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.
- In addition to being known as "Seattle–Tacoma International Airport", another name for SEA is "Sea–Tac Airport".
- 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.
- The South Satellite Terminal has reached its maximum capacity for handling international passengers in terms of immigration check stands as well as customs declaration.
- 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.
- In 2007 the airport, together with the University of Illinois Center of Excellence for Airport Technology, became the first airport to implement an avian radar system providing 24-hour monitoring of wildlife activity across the airfield.
- Seattle–Tacoma International Airport (SEA) has 3 runways.