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Flights from Chicago to Seattle
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Find cheap one-way flights from Chicago to Seattle starting at US$45.
Book one-way or return flights from Chicago to Seattle from as little as US$45. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- ORD06:004h 38mDirectSEA08:38Tue, Mar 26|Chicago - Seattle|Alaska AirlinesUS$45US$7439% OFF39% OFFUS$74US$45
- ORD08:004h 34mDirectSEA10:34Wed, May 1|Chicago - Seattle|Alaska AirlinesUS$51US$7431% OFF31% OFFUS$74US$51
- ORD06:064h 49mDirectSEA08:55Fri, Mar 29|Chicago - Seattle|Delta Air LinesUS$51US$7431% OFF31% OFFUS$74US$51
- ORD14:024h 38mDirectSEA16:40Fri, Apr 5|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD08:004h 34mDirectSEA10:34Sat, Apr 20|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD06:004h 38mDirectSEA08:38Thu, Mar 28|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD08:004h 38mDirectSEA10:38Thu, Apr 4|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD06:004h 34mDirectSEA08:34Wed, Apr 17|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD06:004h 34mDirectSEA08:34Sat, Apr 27|Chicago - Seattle|Alaska AirlinesUS$53US$53
- ORD06:004h 38mDirectSEA08:38Sun, Apr 7|Chicago - Seattle|Alaska AirlinesUS$53US$53
- CHI13:003h 5mDirectSEA14:00Tue, Mar 26|Chicago - Seattle|Alaska AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
When is the cheapest time to book flights from Chicago to Seattle?
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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Chicago to Seattle
Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.
Alaska Airlines
From US$45
American Airlines
From US$60
Frontier Airlines
From US$61
United Airlines
From US$95
Southwest Airlines
From US$100
Sun Country Airlines
From US$105
Spirit Airlines
From US$109
Delta Air Lines
From US$178
Allegiant Air
From US$187
ANA airlines
Find more flights and airlines
Find cheap flights from Chicago to Seattle by different airports
Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to Seattle.
- CheapestORD06:004h 38mDirectSEA08:38O'Hare International Airport - Seattle-Tacoma International AirportTue, Mar 26Alaska AirlinesUS$45
- MDW05:3016h 17m1 transferSEA19:47Midway International Airport - Seattle-Tacoma International AirportWed, May 1Frontier AirlinesUS$61
- RFD21:5915h 13m1 transferSEA11:12Chicago Rockford International Airport - Seattle-Tacoma International AirportMon, Apr 1Allegiant AirUS$187
- RFD21:5915h 13m1 transferSEA11:12Chicago Rockford International Airport - Seattle-Tacoma International AirportMon, Apr 1Allegiant AirUS$187Find More Flights
Frequently Asked Questions
Chicago to Seattle Flight Information
Cheapest nonstop flight price | $45 |
---|---|
Cheapest round-trip ticket price | $97 |
Off-season for travel | November |
Peak season for travel | June |
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