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

Arrival Airport:

Distance from SEA to CMI:
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- About this route
- SEA Airport Information
- CMI Airport Information
- Facts about SEA
- Facts about CMI
- 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 CMI
- List of Nearest Airports to CMI
- Map of Furthest Airports from CMI
- List of Furthest Airports from CMI
About this route:
A direct, nonstop flight between Seattle–Tacoma International Airport (SEA), SeaTac (near Seattle and Tacoma), Washington, United States and University of Illinois Willard Airport (CMI), Champaign-Urbana, Illinois, United States would travel a Great Circle distance of 1,758 miles (or 2,830 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 Seattle–Tacoma International Airport and University of Illinois Willard Airport, the route shown on this map most likely still appears to be a straight line.
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: | CMI / KCMI |
Airport Name: | University of Illinois Willard Airport |
Location: | Champaign-Urbana, Illinois, United States |
GPS Coordinates: | 40°2'21"N by 88°16'41"W |
Area Served: | Champaign-Urbana, Illinois |
Operator/Owner: | University of Illinois at Urbana-Champaign |
Airport Type: | Public |
Elevation: | 754 feet (230 meters) |
# of Runways: | 4 |
View all routes: | Routes from CMI |
More Information: | CMI Maps & Info |
Facts about Seattle–Tacoma International Airport (SEA):
- 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.
- 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 three parallel runways run nearly north–south, west of the passenger terminal, and are 8,500 to 11,900 feet long.
- Seattle–Tacoma International Airport handled 34,776,666 passengers last year.
- The new 3rd runway opened on November 20, 2008, with a total construction cost of $1.1 billion.
- 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's Central Link light-rail line serves the airport at the SeaTac/Airport Station, which opened on December 19, 2009.
- 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.
- 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 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 2013, the airport served over 34.7 million passengers, making it the 15th-busiest airport in the United States.
Facts about University of Illinois Willard Airport (CMI):
- The furthest airport from University of Illinois Willard Airport (CMI) is Margaret River Airport (MGV), which is located 11,084 miles (17,838 kilometers) away in Margaret River, Western Australia, Australia.
- University of Illinois Willard Airport (CMI) has 4 runways.
- On January 28, 1998 President Bill Clinton was in Champaign-Urbana for a speaking engagement at Assembly Hall and arrived at Willard Airport on Air Force One.
- The airport is served by buses from the Champaign-Urbana Mass Transit District, which connect with intercity buses and with Amtrak.
- The closest airport to University of Illinois Willard Airport (CMI) is Decatur Airport (DEC), which is located 34 miles (55 kilometers) WSW of CMI.
- American Eagle has one daily flight to Dallas/Fort Worth International Airport on 50-seat ERJs, and six daily ERJ flights to Chicago's O'Hare International Airport.
- Because of University of Illinois Willard Airport's relatively low elevation of 754 feet, planes can take off or land at University of Illinois Willard 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.
- University of Illinois Willard Airport is south of Savoy in Tolono Township, Champaign County, Illinois.