Cheap flights from Seattle to Chicago

Looking for cheap flights from Seattle to Chicago? We track round-trip fares from SEA to ORD around the clock and post the sharpest price drops here first. Chicago has nonstop service from Seattle, and sale fares on this route tend to disappear within a day or two. Create a free account to see full deal details, or go Premium for an email alert the moment a Chicago fare drops.

A trip to Chicago is worth it for its stunning skyline and the iconic Cloud Gate sculpture in Millennium Park, which draws visitors year-round. The best times to visit are during the shoulder seasons of spring and fall when the weather is pleasant and crowds are smaller, often resulting in cheaper accommodations and activities. Typically, cheap flights from Seattle to Chicago can be found during these periods, as well as in early winter, before the holiday rush.

Travelers will appreciate the convenience of nonstop service from SEA to ORD, making it easier to plan your itinerary without layovers. For the best chance at securing flight deals, aim to book your tickets two to three months in advance. This window often yields the most competitive fares, allowing you to maximize your budget while exploring the Windy City.