The observed direct connection between Chicago Rockford International Airport (RFD) and Seattle–Tacoma International Airport (SEA) covers approximately 1,654 mi. The estimated flight time is around 3h 50m. ABX Air and Air Transport International have been observed on this connection in the available route data.
Frequently asked questions about this route
How far is Chicago from Seattle by air?
The great-circle distance between Chicago Rockford International Airport and Seattle–Tacoma International Airport is approximately 1,654 mi.
How long is the flight from Chicago to Seattle?
Based on the distance, the estimated flight time is about 3h 50m. This is an estimate, not a schedule.
Is there a direct connection from Chicago to Seattle?
Yes, a direct connection between RFD and SEA has been observed in our route data.
Which airlines have been observed on this route?
In the available route data: ABX Air and Air Transport International.
How often is there a flight from Chicago to Seattle?
On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 218 observed flights. Mainly Air Transport International, ABX Air. That is an observation, not a timetable.
What is the current time difference between Chicago and Seattle?
Seattle is currently 2 hours behind Chicago.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.