Search flights from Seattle (SEA) to Chicago (CHI)

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Cheapest flights to Chicago

The cheapest flights available in the next 60 days – prices are updated regularly

Flying from Seattle to Chicago: things to know

The most popular route is from Sea-Tac Airport in Seattle to Chicago O'Hare International Airport in Chicago. On average this flight takes 4 hours 14 minutes one-way and costs $610 round-trip.

Most popular route
Sea-Tac Airport (SEA) to Chicago O'Hare International Airport (ORD)
Average flight time
4 hours 14 minutes
Average round-trip price
$610
Fly from Seattle to Chicago
8 airlines

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Airlines that fly from Seattle to Chicago

Airline options may vary according to recently booked flights and your search terms

  • Alaska Airlines
  • United Airlines
  • American Airlines
  • Hawaiian Airlines
  • Spirit Airlines
  • Frontier Airlines
  • Sun Country
  • Southwest Airlines

Frequently asked questions

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