Cheap flights from Chicago to Seattle (CHI - SEA)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Chicago to Seattle/Tacoma Intl are usually found in August or April, booked 60 days in advance, depart on a Thursday or Friday and return on a Saturday

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

All the information you need to plan the best CHI to SEA flight in 2022: compare Chicago to Seattle flight prices with the expected peak season, weather and rainfall in Seattle.
CHI - SEA
Price
$144 - $280
SEA
Temperature
41 - 66.2 °F
SEA
Rainfall
0.7 - 6.6 inches

Popular in

December

High demand for flights, 29% potential price rise

Cheapest in

August

Best time to find cheap flights, 27% potential price drop

Round-trip from

$144

From Chicago (CHI) to Seattle/Tacoma Intl

One-way from

$109

One-way flight from Chicago (CHI) to Seattle/Tacoma Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
How far in advance should I book a flight from Chicago to Seattle?

Travelers have found it’s best to book a flight 56 days in advance to save up to 26% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 56 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Chicago to Seattle 1-2 weeks in advance for as low as $215, or $233 for flights within the next 24 hours.

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 13% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly round-trip from Chicago to Seattle?

Users have found that leaving on a Wednesday can be a cost-effective option. It’s possible to save up to 9% on your flight compared to booking on days when demand is much higher.

What is the cheapest month to fly from Chicago to Seattle?

Our data shows that August tends to be the cheapest month to fly to Seattle from Chicago. Users have commonly found prices around $198 for the month, but tickets can be as low as $86. Due to multiple factors, prepare for potentially higher prices in December.

Cheap flights from Chicago to Seattle in May, June 2022

The best prices found for CHI to SEA flights for May, June
11 Jun - 30 Aug
$357pp
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
11 Jun - 29 Aug
$382pp
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
4 Jun - 6 Jun
$401pp
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

Chicago to Seattle 2022 flight deals

Cheap flights to Seattle from Chicago found for this year
9 Sep - 1 Oct
$215pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
13 Sep - 21 Sep
$216pp
ORD
Chicago O'Hare Intl
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
ORD
Chicago O'Hare Intl
13 Sep - 20 Sep
$220pp
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
United Airlines
 
1 STOP
ORD
Chicago O'Hare Intl

Non-stop flights to Seattle from Chicago

Save time with Chicago to Seattle direct flight deals
9 Sep - 1 Oct
$215pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
13 Sep - 20 Sep
$216pp
ORD
Chicago O'Hare Intl
Delta
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
Non-Stop
ORD
Chicago O'Hare Intl
23 Sep - 28 Sep
$222pp
ORD
Chicago O'Hare Intl
Multiple Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
SEA
Seattle/Tacoma Intl
Delta
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
4 Jun - 6 Jun
$401pp
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
3 Jun - 6 Jun
$408pp
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
3 Jun - 6 Jun
$431pp
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

One-way flights to Seattle/Tacoma Intl from Chicago

The cheapest one-way flights from Chicago to Seattle
3:25 am - 6:01 am
United Airlines
Nonstop
4h 36m
ORD - SEA
United Airlines
$109
United
3:00 am - 5:40 am
Alaska Airlines
Nonstop
4h 40m
ORD - SEA
Alaska Airlines
4:14 am - 3:15 pm
Frontier
1 Stop
13h 01m
MDW - SEA
Frontier
$178
Kiwi.com

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Chicago</span> to <span class="emphasized">Seattle</span> flights.

Flight FAQs

From Chicago to Seattle

What airport do you fly into for flights to Seattle from Chicago?

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly into when you book flights from Chicago to Seattle. 11 airlines have flights to Seattle/Tacoma Intl from Chicago on a regular basis. Booking flights from Chicago to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 30 inbound flights from Chicago per day.

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 Alaska Airlines, United Airlines, and Delta. 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 $300 on Cheapflights?

Yes, there are multiple flights from Chicago to Seattle for under $300. The cheapest flight booked recently is on Multiple Airlines for just $215, but on average you can expect to pay $233.

Are there nonstop flights from Chicago to Seattle for under $300 on Cheapflights?

Cheapflights has at least 20 direct flights from Chicago to Seattle under $300. A good price for a nonstop flight from Chicago to Seattle is less than $251.

Are there last-minute flights available from Chicago to Seattle for under $500?

There are currently 20+ open flights from Chicago to Seattle within the next 7 days for less than $500.

What days are nonstop flights available from Chicago to Seattle?

Nonstop flights are available for this route on the following days: Sunday, Monday, Wednesday, Thursday, Friday, Saturday.

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

On average, you can expect to see 50 flights from Chicago to Seattle a day.
Morning (6am - Noon) - 26% of flight departures
Afternoon (Noon - 6pm) - 38% of flight departures
Evening (6pm - Midnight) - 36% of flight departures

How long is the flight from Chicago to Seattle?

For as low as $216, Delta can have you in Seattle from Chicago in 4h 39m. The distance from Chicago to Seattle is about 1725 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

Our cheapest airline available from Chicago to Seattle is Delta. Our recent data shows that you can find tickets from as low as $216 on this airline. Additional options worth looking into are United Airlines and American Airlines, starting at $220 and $223 round-trip.

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

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $108. United Airlines flights start at $109 while deals on Spirit Airlines start at $125 one-way.

What are the cheapest flights from Chicago to Seattle?

Looking at all options, your cheapest flight can be booked for $118. While the most popular route (Chicago O'Hare Intl - Seattle/Tacoma Intl) can be booked for $216 on average our data indicates $810 when flying from Chicago to Seattle.

What are the most popular airlines that fly from Chicago to Seattle?

Before booking your flight from Chicago to Seattle check out the most popular airlines for this route: Major Airline, American Airlines or Alaska Airlines.

What are the most reliable airlines from Chicago to Seattle?

No one likes to see their flight delayed. When booking a flight from Chicago to Seattle consider choosing SWISS (88%), Air France (88%) or Turkish Airlines (86%) as they are the most reliable in getting you off to your destination on time.

COVID Restrictions

View COVID Travel Restrictions for Seattle, WA

Do I need a COVID test to fly to Seattle from Chicago?

Information is based on travel restrictions for travel to Seattle/Tacoma Intl within the United States

Most visitors from Chicago need to provide a negative COVID-19 test result and/or quarantine to enter Seattle/Tacoma Intl.

COVID-19 testing requirements
Visitors from Chicago must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Seattle/Tacoma Intl.

Quarantine requirements
Visitors from Chicago are not required to quarantine after entering Seattle/Tacoma Intl.

Do I need a test to fly back to Chicago from Seattle?

Returning to Chicago from Seattle/Tacoma Intl

COVID-19 testing requirements
Visitors from Seattle/Tacoma Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Chicago.

Quarantine requirements
Visitors from Seattle/Tacoma Intl are not required to quarantine after entering Chicago.

Hide COVID Travel Restrictions for Seattle, WA

Alternative routes for Chicago to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Destination information for Seattle

Things to know before you go - useful duration and weather info for your trip from Chicago to Seattle.
Flight duration from Chicago to SEA
4h 23m
Average temperature for May in Seattle
66.2 °F
Avg rainfall for May in Seattle
1.8 ″

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Airports servicing Seattle

Top 6 airlines flying from Chicago to Seattle/Tacoma Intl

The chart below displays the airlines Cheapflights users traveling from Chicago to Seattle choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$13 $21 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

Spirit Airlines
$74 $250 No cancel fee 65%
Alaska Airlines
$106 $385 No cancel fee 75%
Delta
$108 $371 No cancel fee N/A
United Airlines
$113 $286 No cancel fee 69%
American Airlines
$117 $277 No cancel fee 71%

Hourly flight availability from Chicago to Seattle

See what time of day planes typically take off from Chicago towards Seattle.
Afternoon Noon to 6 PM 50% of CHI to SEA departures
Morning 6 AM to noon 40% of CHI to SEA departures
Evening 6 PM to midnight 9% of CHI to SEA departures
Early morning Midnight to 6 AM 1% of CHI to SEA departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Chicago to Seattle
See how many times per day planes take to the skies headed from Chicago to Seattle.
Sunday
19 daily flights
Monday
37 daily flights
Tuesday
43 daily flights
Wednesday
31 daily flights
Thursday
32 daily flights
Friday
29 daily flights
Saturday
19 daily flights
Home North America USA Washington Seattle Cheap flights from Chicago to Seattle