Cheap Flights from Chicago, IL to Seattle, WA from $123
On Cheapflightsplus.com you will find 1 direct and 40 connecting flights from Chicago to Seattle. You can compare airfare deals from 4 airlines and multiple travel sites from $123, book and save on cheap plane tickets and last minute offers. Also check out CHI-SEA flight schedule to find best flight time, convenient departure and arrival airports.
Flight Information
Below we will explain in detail what the flights cost on the destination from Chicago to Seattle depends on and how to choose the most interesting flight option for you.
Distance between Chicago and Seattle is 2786 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 21:42 from 7 Chicago airports and arrive 05:00 to 21:42 to 3 Seattle airports. Average flight time is 4h 43m.
- The fastest flight 4h 43m
- Average flight time 4h 43m
- The earliest flight 05:00
- The latest flight 21:42
- Distance 1732 ml
Best Flights from Chicago to Seattle Today
| Price | Departure | Arrival | Flight Duration | Airline | Flight |
|---|---|---|---|---|---|
| from $128 | 21:16 Chicago O'Hare International | 23:59 Seattle Seattle-Tacoma Intl | 4h 43m | United Airlines | UA2200 |
| from $123 | 07:00 Chicago O'Hare International | 12:52 Seattle Seattle-Tacoma Intl | 7h 52m layover 2h 32m - Portland | Alaska Airlines | AS413 AS2124 |
| from $164 | 17:56 Chicago O'Hare International | 00:56+1 день Seattle Seattle-Tacoma Intl | 9h 0m layover 1h 11m - Washington D.C. | United Airlines | UA2677 UA716 |
| from $159 | 06:40 Chicago O'Hare International | 16:25+1 день Seattle Seattle-Tacoma Intl | 35h 45m layover 10h 12m - Los Angeles 17h 6m - Las Vegas | Spirit Airlines | NK1104 NK1052 NK1681 |
| from $221 | 16:36 Chicago O'Hare International | 16:25+1 день Seattle Seattle-Tacoma Intl | 25h 49m layover 1h 5m - Orlando 14h 11m - Las Vegas | Spirit Airlines | NK1370 NK1371 NK1681 |
The cheapest months to travel to Seattle are october (from 123 $), may (from 123 $), august (from 128 $).
The most expensive months are june (from 164 $), july (from 159 $), august (from 128 $).
What is the lowest airfare Chicago to Seattle?
The cheapest plane ticket found by our users is $123. This airfare is for economy class on one-way AS413 flight by Alaska Airlines for October 30, 2025 which leaves O'Hare International in Chicago at 07:00 am and arrives at Seattle Seattle-Tacoma Intl at 12:52.
Flight Schedule Chicago (Illinois) to Seattle (Washington)
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Popular Airlines on the Route
The flight Chicago — Seattle is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Alaska Airlines - 4 departures per week at the price of from $ 123 . And the most expensive tickets are offered by Alaska Airlines airline - from $ 6666.
Direct flights
There are 1 nonstop flights on the route. The fastest direct flight is UA2200 by United Airlines takes 4h 43m and the cheapest is AS413 by Alaska Airlines for $128.
- UA - United Airlinesfrom $128Find
Connecting Flights
There are 40 flights with layovers on the route. The fastest connecting flight is AS6834 by Alaska Airlines takes 5h 52m and the cheapest is AS413 by Alaska Airlines for $123.
- AS - Alaska Airlinesfrom $123Find
- F9 - Frontier Airlinesfrom $229Find
- UA - United Airlinesfrom $164Find
- NK - Spirit Airlinesfrom $159Find
Airports
You can fly from Chicago to Seattle from 7 airports (O'Hare International, Midway, Dupage County, Chicago FSS, Merrill C Meigs (closed), Pal-Waukee, Chicago NAS).
Chicago airports
- O'Hare International-ORDfrom $123Find
- Midway-MDWFind
- Dupage County-DPAFind
- Chicago FSS-CHIFind
- Merrill C Meigs (closed)-CGXFind
- Pal-Waukee-PWKFind
- Chicago NAS-NOHFind
Seattle airports
- Boeing Field International Airport-BFIFind
- Seattle-Tacoma Intl-SEAFind
- Kenmore Air Harbor SPB-LKEFind
Airplanes
There are flights to Seattle from Chicago by 4 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.
Top Domestic Destinations from Chicago
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Top International Destinations from Chicago
Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.
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How to book a plane ticket yourself?
- Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
- Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
- Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
- Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
- That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.
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