Cheap flights from Seattle to Chicago (SEA - CHI)

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

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

All the information you need to plan the best SEA to CHI flight in 2022: compare Seattle to Chicago flight prices with the expected peak season, weather and rainfall in Chicago.
SEA - CHI
Price
$138 - $298
CHI
Temperature
23 - 73.4 °F
CHI
Rainfall
1.7 - 4.9 inches

Popular in

December

High demand for flights, 28% potential price rise

Cheapest in

August

Best time to find cheap flights, 36% potential price drop

Round-trip from

$138

From Seattle/Tacoma Intl to Chicago (CHI)

One-way from

$99

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

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 Seattle to Chicago?

Users have found that booking a flight from Seattle to Chicago at least 57 days early can save you up to 13% on average compared to booking a flight this week. If booking 57 days before your flight isn’t an option for you, users have found flights from Seattle to Chicago for as little as $226 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 $247 for flights departing within the next 3 days.

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

It’s typically best to fly out from Seattle to Chicago in the evening. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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

The best pricing can be found in the month of August. Prices to Chicago from Seattle average $214. You can even find prices in August for less than $214, as users have found deals to Chicago from as low as $78. The month of December appears to be one of the more expensive times to travel to Chicago from Seattle. Flying in the targeted month can save you up to 39%.

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

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

Cheap flights from Seattle to Chicago in May, June 2022

The best prices found for SEA to CHI flights for May, June
3 Jun - 8 Jun
$333pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Jun - 6 Jul
$348pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
8 Jun - 12 Jun
$349pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Seattle/Tacoma Intl to Chicago 2022 flight deals

Cheap flights to Chicago from Seattle found for this year
2 Nov - 9 Nov
$194pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
8 Nov - 9 Nov
$211pp
SEA
Seattle/Tacoma Intl
American Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
American Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
2 Nov - 10 Nov
$215pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Non-stop flights to Chicago from Seattle

Save time with Seattle to Chicago direct flight deals
2 Nov - 9 Nov
$194pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
2 Nov - 10 Nov
$215pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
5 Nov - 13 Nov
$216pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Chicago

Late deals on round-trip flights to Chicago from Seattle, departing today and this week
26 May - 31 May
$363pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
MDW
Chicago Midway
MDW
Chicago Midway
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
26 May - 31 May
$366pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
MDW
Chicago Midway
MDW
Chicago Midway
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
28 May - 31 May
$405pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
MDW
Chicago Midway
MDW
Chicago Midway
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Chicago from Seattle

The cheapest one-way flights from Seattle to Chicago
7:45 pm - 1:45 am
Alaska Airlines
Nonstop
4h 00m
SEA - ORD
Alaska Airlines
$99
Travelstart
11:54 am - 4:38 pm
Multiple Airlines
1 Stop
26h 44m
SEA - ORD
Multiple Airlines
$120
Kiwi.com
2:35 pm - 2:36 pm
Sun Country Air
1 Stop
22h 01m
SEA - ORD
Sun Country Air
$136
Tripmonster

Related info for your journey

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

Flight FAQs

From Seattle to Chicago

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

For a flight from Seattle to Chicago, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 33 outbound flights to Chicago per day. 10 airlines have flights to Chicago from Seattle/Tacoma Intl on a regular basis.

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

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

Can I find flights from Seattle to Chicago for under $200 on Cheapflights?

Yes, there are multiple flights from Seattle to Chicago for under $200. The cheapest flight booked recently is on Alaska Airlines for just $194, but on average you can expect to pay $225.

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

Cheapflights has at least 20 direct flights from Seattle to Chicago under $200. A good price for a nonstop flight from Seattle to Chicago is less than $250.

Are there last-minute flights available from Seattle to Chicago for under $400?

There are currently 20+ open flights from Seattle to Chicago within the next 7 days for less than $400.

What days are nonstop flights available from Seattle to Chicago?

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

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

On average 32 flights depart from Seattle to Chicago per day.
Early Morning (Midnight to 6am) - 28% of flight departures
Morning (6am - Noon) - 31% of flight departures
Afternoon (Noon - 6pm) - 38% of flight departures
Evening (6pm - Midnight) - 3% of flight departures

How long is the flight from Seattle to Chicago?

Departing from Seattle to Chicago will take you 4h. Seattle and Chicago are separated by a distance of 1725 mi. Generally, flights for this route are nonstop.

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

Our cheapest airline available from Seattle to Chicago is Alaska Airlines. Our recent data shows that you can find tickets from as low as $194 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $211 and $216 round-trip. Users have found that Alaska Airlines is 9% cheaper than the other options available to this destination.

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

To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $99. American Airlines flights start at $108 while deals on United Airlines start at $113 one-way.

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

When booking a flight from Seattle to Chicago, you may want to consider flying on American Airlines, Alaska Airlines or Delta as they are the most popular for this route.

What are the most reliable airlines from Seattle to Chicago?

No one likes to see their flight delayed. When booking a flight from Seattle to Chicago consider choosing Austrian Airlines (100%), LOT (95%) or United Airlines (94%) as they are the most reliable in getting you off to your destination on time.

What are the cheapest flights from Seattle to Chicago?

Looking for the cheapest flight from Seattle to Chicago? While on average our users pay $750, our data indicates the cheapest price to be $124. The most popular route (Seattle/Tacoma Intl - Chicago O'Hare Intl), is priced around $202.

What are the most popular routes from Seattle to Chicago?

While some choose either Seattle/Tacoma Intl - Chicago Midway or Seattle/Tacoma Intl - Chicago Greater Rockford, Seattle/Tacoma Intl - Chicago O'Hare Intl is the most popular route from Seattle to Chicago.

COVID Restrictions

View COVID Travel Restrictions for Chicago, IL

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

Information is based on travel restrictions for travel to Chicago within the United States

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

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.

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

Returning to Seattle/Tacoma Intl from Chicago

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.

Hide COVID Travel Restrictions for Chicago, IL

Alternative routes for Seattle to Chicago

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

Destination information for Chicago

Things to know before you go - useful duration and weather info for your trip from Seattle to Chicago.
Flight duration from SEA to Chicago
4h 20m
Average temperature for May in Chicago
71.6 °F
Avg rainfall for May in Chicago
4.3 ″

Airports servicing Seattle

Airports servicing Chicago

Midway (MDW)
Rockford (RFD)

Top 6 airlines flying from Seattle/Tacoma Intl to Chicago

The chart below displays the airlines Cheapflights users traveling from Seattle to Chicago 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
$12 $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
$63 $273 No cancel fee 65%
Alaska Airlines
$101 $257 No cancel fee 75%
United Airlines
$113 $286 No cancel fee 69%
American Airlines
$116 $292 No cancel fee 71%
Delta
$117 $373 No cancel fee N/A

Hourly flight availability from Seattle to Chicago

See what time of day planes typically take off from Seattle towards Chicago.
Early morning Midnight to 6 AM 43% of SEA to CHI departures
Morning 6 AM to noon 33% of SEA to CHI departures
Afternoon Noon to 6 PM 18% of SEA to CHI departures
Evening 6 PM to midnight 6% of SEA to CHI departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Chicago
See how many times per day planes take to the skies headed from Seattle to Chicago.
Sunday
26 daily flights
Monday
40 daily flights
Tuesday
38 daily flights
Wednesday
44 daily flights
Thursday
33 daily flights
Friday
32 daily flights
Saturday
19 daily flights
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