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Cheap flights from Chicago to Seattle (CHI - SEA)

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The best prices from Chicago to Seattle are usually found in February or October, booked 60 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

How to find the cheapest flight from
Chicago (CHI) to Seattle (SEA)

CHI - SEA
Price
$177 - $280
SEA
Temperature
46.4 - 77 °F
SEA
Rainfall
0.7 - 6.5 inches

Popular in

December

High demand for flights, 20% potential price rise

Cheapest in

February

Best time to find cheap flights, 21% potential price drop

Round-trip from

$177

From Chicago to Seattle

One-way from

$58

One-way flight from Chicago to Seattle

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Chicago to Seattle?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Seattle. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Chicago to Seattle?

Users have found that booking a flight from Chicago to Seattle at least 27 days early can save you up to 58% on average compared to booking a flight this week. If booking 27 days before your flight isn’t an option for you, users have found flights from Chicago to Seattle for as little as $136 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $197 for flights departing within the next 3 days.

When is the cheapest time to fly from Chicago to Seattle (CHI - SEA)?

It’s typically best to fly out from Chicago to Seattle in the afternoon. Doing so could potentially save you 18% on the flight price compared to flying in the morning, which is usually more expensive.

Cheap flights from Chicago to Seattle in October, November 2020

The best prices found for CHI to SEA flights for October, November
5 Nov - 11 Nov
$113pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
12 Nov - 16 Nov
$118pp
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
14 Nov - 16 Nov
$119pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

Chicago to Seattle 2020 flight deals

Cheap flights to Seattle from Chicago found for this year
4 Dec - 6 Dec
$78pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
4 Dec - 6 Dec
$107pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
4 Dec - 5 Dec
$113pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl

Non-stop flights to Seattle from Chicago

Save time with Chicago to Seattle direct flight deals
12 Nov - 16 Nov
$118pp
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
14 Nov - 18 Nov
$124pp
ORD
Chicago O'Hare Intl
Major Airline
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Major Airline
Non-Stop
ORD
Chicago O'Hare Intl
14 Nov - 18 Nov
$125pp
ORD
Chicago O'Hare Intl
Major Airline
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Major Airline
Non-Stop
ORD
Chicago O'Hare Intl

Last minute flights from Chicago to Seattle

Late deals on round-trip flights to Seattle from Chicago, departing today and this week
29 Oct - 1 Nov
$124pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
31 Oct - 6 Nov
$131pp
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
29 Oct - 1 Nov
$133pp
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl

One-way flights to Seattle from Chicago

The cheapest one-way flights from Chicago to Seattle
8:55 am - 11:33 am
Alaska Airlines
Nonstop
4h 38m
ORD - SEA
Alaska Airlines
$58
mytrip.com
9:08 am - 7:25 pm
Delta
1 Stop
12h 17m
MDW - SEA
Delta
$79
Delta
12:55 pm - 5:37 am
Spirit Airlines
2 Stops
42h 42m
ORD - SEA
Spirit Airlines
$87
Kiwi.com

Related info for your journey

Useful info, stats and facts about Chicago to Seattle flights.

Flight FAQs

From Chicago to Seattle

Are flight prices decreasing from Chicago to Seattle due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Chicago and Seattle for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Chicago to Seattle/Tacoma Intl to control the spread of COVID-19?

Alaska Airlines, Southwest, and Delta are some of the many airlines that have implemented additional safety measures to control the spread of COVID-19. New policies for travelers booking flights from Chicago to Seattle/Tacoma Intl include masks being provided and required on board, daily cleaning and sanitization, use of HEPA filters, pre-flight testing for antibodies and symptoms, and socially distanced seating (for a limited time). Keep in mind that policies will vary by airline.

Which airlines flying from Chicago to Seattle/Tacoma Intl have flexible cancellations due to COVID-19?

Some of the carriers operating flights from Chicago to Seattle/Tacoma Intl that may be offering flexible cancellation policies are Delta, Alaska Airlines, and United Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

Can I find flights from Chicago to Seattle for under $100 on Cheapflights?

Yes, there are multiple flights from Chicago to Seattle for under $100. The cheapest flight booked recently is on Frontier for just $78, but on average you can expect to pay $125.

Are there nonstop flights from Chicago to Seattle for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to Seattle under $200. A good price for a nonstop flight from Chicago to Seattle is less than $159.

Are there last-minute flights available from Chicago to Seattle for under $200?

There are currently 20+ open flights from Chicago to Seattle within the next 7 days for less than $200.

What days are nonstop flights available from Chicago to Seattle?

You can find nonstop flights on the following days: Monday, Thursday, Friday, Saturday.

How many flights depart from Chicago to Seattle on average per day?

10 flight departures from Chicago to Seattle/Tacoma Intl per day on average.
Early Morning (Midnight to 6am) - 10% of flight departures
Morning (6am - Noon) - 30% of flight departures
Afternoon (Noon - 6pm) - 10% of flight departures
Evening (6pm - Midnight) - 50% of flight departures

Is Chicago weather warmer or cooler than Seattle?

Temperatures around the 84 °F's can be experienced in July. The weather in Seattle is colder than in Chicago. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Chicago to Seattle?

A quick flight from Chicago to Seattle can take about 4h 25m. United Airlines provides one of the quickest options available for as low as $137. There are 1725 mi between Chicago and Seattle. All flights are typically nonstop.

What are the cheapest airlines flying from Chicago to Seattle round-trip?

Our cheapest airline available from Chicago to Seattle is Frontier. Our recent data shows that you can find tickets from as low as $78 on this airline. Additional options worth looking into are Alaska Airlines and Major Airline, starting at $118 and $125 round-trip. You may be able to fly from Chicago to Seattle for 65% less than the average price by searching for these airlines.

What are the cheapest airlines to fly from Chicago to Seattle one-way?

For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $58. Users have also found prices from $59 and $64 on Alaska Airlines and Frontier, respectively.

Alternative routes for Chicago to Seattle

Destination information for Seattle

Things to know before you go. Useful info for your trip from Chicago to Seattle
Flight duration
4h 16m
Average temperature for October in Seattle
60.8 °F
Avg rainfall for October in Seattle
3.5 ″

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Airports servicing Seattle

Hourly flight availability from Chicago to Seattle

Afternoon Noon to 6 PM 56% of CHI to SEA departures
Morning 6 AM to noon 17% of CHI to SEA departures
Evening 6 PM to midnight 17% of CHI to SEA departures
Early morning Midnight to 6 AM 10% of CHI to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to Seattle
Sunday
21 daily flights
Monday
21 daily flights
Tuesday
24 daily flights
Wednesday
17 daily flights
Thursday
21 daily flights
Friday
24 daily flights
Saturday
22 daily flights
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