Fly nonstop from Seattle to Chicago for $237 round-trip on United.
Seen below, we found seats departing SEA on Wednesday, June 3, returning from ORD on the following Sunday, June 7.
Other dates are also available for travel in May/June.
For booking info, see our Fare Details.
Need a room in Chicago? Here's a look at what's available for the above dates on Hotelwatchdog.