The cheapest round-trip flight from Seattle to Chicago starts at $110 from Sat, Mar 1 to Mon, Mar 10. The cheapest one-way flight starts at $55 and departs on Thu, Mar 6.

Find United Airlines cheap flights from Seattle to Chicago. Enjoy a Seattle to Chicago modern flight experience in premium cabins with Wi-Fi.

Find the best deals on flights from Seattle / Tacoma International (SEA) to Chicago (CHIA). Compare prices from hundreds of major travel agents and airlines, all in one search.

Find flights to Chicago from $50. Fly from Seattle on Frontier, Spirit Airlines and more. Search for Chicago flights on KAYAK now to find the best deal.

Find the best deals on flights from Seattle (SEAA) to Chicago O'Hare International (ORD). Compare prices from hundreds of major travel agents and airlines, all in one search.

Cheap Flights from Seattle (SEA) to Chicago (ORD) start at $60 for one-way and $120 for round trip. Earn your airline miles on top of our rewards!

Are you searching for American Airlines flights from Seattle to Chicago? Find the best selections and fly in style.

5 days ago · Find the best deals on flights from Seattle / Tacoma International (SEA) to Chicago O'Hare International (ORD). Compare prices from hundreds of major travel agents and airlines, all in one search.

Fly one-way from Seattle/Tacoma to Chicago (Midway) starting at $145. Bundle your Southwest Airlines® flight with a hotel or rental car booking and find even more savings.

2 days ago · All direct (non-stop) flights from Seattle / Tacoma to Chicago. See airlines, aircrafts, flight time and distance, flight schedules and timetables.