Cheap flights from Seattle to Chicago
From 229 USD — compare hundreds of airlines
About this route
Compare flights from Seattle to Chicago, a about 2,789 km route (around 3h 59m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as American Airlines, Alaska Airlines, Etihad Airways operate this route.
Prices by date
Airlines on this route
FAQ
What's the cheapest month to fly Seattle to Chicago?
It's usually 2026-07, from 156 USD. Use the price calendar to compare other dates.
How long is the flight from Seattle to Chicago?
A nonstop flight takes about 3h 59m and covers around 2,789 km. Connecting itineraries take longer.
Are there direct flights from Seattle to Chicago?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Seattle to Chicago?
American Airlines, Alaska Airlines, Etihad Airways, Gulf Air operate this route, among others. Compare them all in the results.
When should I book Seattle–Chicago flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.