The flight distance from University Of Illinois/Willard Airport (CMI) in Champaign/Urbana, United States to Seattle-Tacoma International Airport (SEA) in Seattle, United States is 2,830 kilometers (1,758 miles / 1,528 nautical miles). The estimated flight time for this route is approximately 4h, flying west northwest at a heading of 298°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is a domestic route within United States. Both airports operate in the same country, which may simplify travel requirements and documentation. Despite being a domestic route, there is a 2-hour time difference between the two cities.

Time zone information: When it's 05:40 in Champaign/Urbana, it's 03:40 in Seattle.

The return flight from Seattle (SEA) to Champaign/Urbana (CMI) follows a heading of 94° (east). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the University Of Illinois/Willard Airport (CMI) and Seattle-Tacoma International Airport (SEA) detail pages, or use our flight duration calculator to compare other routes.