Search flights from Chicago (CHI) to Seattle (SEA)
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Cheapest flights to Seattle
The cheapest flights available in the next 60 days – prices are updated regularly
- Wed, Oct 1$86.83One-wayEconomy1 traveler
- Wed, Oct 8$87.82One-wayEconomy1 traveler
- Tue, Sep 30$88.99One-wayEconomy1 traveler
Flying from Chicago to Seattle: things to know
The most popular route is from Chicago O'Hare International Airport in Chicago to Sea-Tac Airport in Seattle. On average this flight takes 4 hours 50 minutes one-way and costs $607 round-trip.
Most popular route | Chicago O'Hare International Airport (ORD) to Sea-Tac Airport (SEA) |
|---|---|
Average flight time | 4 hours 50 minutes |
Average round-trip price | $607 |
Fly from Chicago to Seattle | 7 airlines |
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Airlines that fly from Chicago to Seattle
Airline options may vary according to recently booked flights and your search terms
Alaska Airlines
United Airlines
American Airlines
Hawaiian Airlines
Frontier Airlines
Spirit Airlines
Allegiant Air
Frequently asked questions
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