Cheap flights from Seattle to Chicago

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

How to find the cheapest flight from Seattle to Chicago

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

C$ 138 - C$ 298

CHI

Temperature

-5 - 23 °C

CHI

Precipitation

43 - 125 mm

Popular in

December

High demand for flights, 28% potential price rise

Cheapest in

August

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

Average price

C$ 246

Average for round-trip flights in January 2022

Round-trip from

C$ 172

From Seattle/Tacoma Intl to Chicago (CHI)

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

Saturday flights are found to be more expensive to fly from Seattle to Chicago. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Chicago.

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

To save on the cost of your flight from Seattle to Chicago, book at least 57 days before your planned departure. Booking around this time can save you about 13% on the cost of this flight compared to booking a flight leaving this week. We have found prices from C$ 282 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as C$ 309.

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

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, August can be a great choice for travel to Chicago. Flights to Chicago from Seattle in August are about C$ 267 on average during August, but can be found for as low as C$ 97.

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 afternoon. Doing so could potentially save you 29% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Seattle to Chicago in January, February 2022

The best prices found for SEA to CHI flights for January, February
7 Feb. - 11 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

13h 19m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 45m
C$ 177

Multiple Airlines

View Deal

Deal found 17/1/22

6 Feb. - 11 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

17h 03m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 42m
C$ 179

Multiple Airlines

View Deal

Deal found 17/1/22

17 Feb. - 20 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

3h 52m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 50m
C$ 180

Delta

View Deal

Deal found 20/1/22

Seattle to Chicago 2022 flight deals

Cheap flights to Chicago from Seattle found for this year
7 Feb. - 11 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

13h 19m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 45m
C$ 177

Multiple Airlines

View Deal

Deal found 17/1/22

6 Feb. - 11 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

17h 03m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 42m
C$ 179

Multiple Airlines

View Deal

Deal found 17/1/22

4 Mar. - 6 Mar.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 00m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 50m
C$ 180

Delta

View Deal

Deal found 20/1/22

Direct flights to Chicago from Seattle

Save time with Seattle to Chicago direct flight deals
17 Feb. - 22 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 00m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 50m
C$ 180

Delta

View Deal

Deal found 20/1/22

16 Feb. - 17 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 00m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 40m
C$ 190

Alaska Airlines

View Deal

Deal found 20/1/22

17 Feb. - 21 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 05m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

Nonstop

4h 40m
C$ 197

Alaska Airlines

View Deal

Deal found 19/1/22

Last minute flights from Seattle to Chicago

Late deals on round-trip flights to Chicago from Seattle, departing today and this week
29 Jan. - 31 Jan.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

6h 45m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

1 stop

10h 30m
C$ 234

Spirit Airlines

View Deal

Deal found 18/1/22

27 Jan. - 3 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 05m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 25m
C$ 239

Multiple Airlines

View Deal

Deal found 19/1/22

27 Jan. - 3 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

6h 45m
ORD

Chicago O'Hare Intl

SEA

Seattle/Tacoma Intl

1 stop

11h 25m
C$ 241

Multiple Airlines

View Deal

Deal found 19/1/22

One-way flights to Chicago All airports from Seattle

The cheapest one-way flights from Seattle to Chicago
16 Mar.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

3h 53m
C$ 90

Delta

View Deal

Deal found 20/1/22

18 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

Nonstop

4h 05m
C$ 99

Alaska Airlines

View Deal

Deal found 19/1/22

5 Feb.
SEA

Seattle/Tacoma Intl

ORD

Chicago O'Hare Intl

1 stop

6h 29m
C$ 101

Delta

View Deal

Deal found 20/1/22

Related info for your journey

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

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

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Chicago. On average, Seattle/Tacoma Intl has 25 outbound flights to Chicago per day from 5 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.

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 Delta, Spirit Airlines, and Alaska Airlines. Our site will let you filter for all airlines offering greater flexibility due to COVID-19.

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

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

Are there last-minute flights available from Seattle to Chicago for under C$ 300?

There are currently 20+ open flights from Seattle to Chicago within the next 7 days for less than C$ 300.

What days are direct flights available from Seattle to Chicago?

Direct flights can be found on the following days: Tuesday.

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

On average 1 flight departs from Seattle to Chicago per day.
Morning (6am - Midday) - 100% of flight departures

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

The cheapest airlines for a one-way flight from Seattle to Chicago are Delta (C$ 90), Alaska Airlines (C$ 99), and Spirit Airlines (C$ 107).

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

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

What are the most reliable airlines from Seattle to Chicago?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Chicago on time: SkyWest Airlines (100%), Air France (100%), Malaysia Airlines (100%).

What are the cheapest flights from Seattle to Chicago?

On average you can expect to pay C$ 232 for a flight from Seattle to Chicago. The cheapest flight overall is C$ 76 while the most popular route, (Seattle/Tacoma Intl - Chicago O'Hare Intl) is currently priced at C$ 186.

Can I fly to Chicago from Seattle/Tacoma Intl right now?

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 24 hours before departing to Chicago.

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

Can I fly back to Seattle/Tacoma Intl 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 24 hours before departing to Seattle/Tacoma Intl.

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

Top 5 airlines flying from Seattle to Chicago

The chart below displays the airlines Cheapflights users travelling from Seattle to Chicago choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-timeCOVID-19 safety
Delta
CheapestC$ 99
AverageC$ 262
FlexibilityNo cancel fee
On-timeN/A
COVID-19 safety
Alaska Airlines
CheapestC$ 105
AverageC$ 318
FlexibilityNo cancel fee
On-time75%
COVID-19 safety
Spirit Airlines
CheapestC$ 143
AverageC$ 283
FlexibilityNo cancel fee
On-time65%
COVID-19 safety
American Airlines
CheapestC$ 172
AverageC$ 326
FlexibilityNo cancel fee
On-time71%
COVID-19 safety
United Airlines
CheapestC$ 174
AverageC$ 284
FlexibilityNo cancel fee
On-time69%
COVID-19 safety

Hourly flight availability from Seattle to Chicago

See what time of day planes typically take off from Seattle to Chicago
44%of flight departuresEarly morningMidnight to 6 am
18%of flight departuresMorning6 am to noon
27%of flight departuresAfternoonNoon to 6 pm
11%of flight departuresEvening6 pm to midnight
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
Sunday31daily flights
Monday28daily flights
Tuesday18daily flights
Wednesday29daily flights
Thursday35daily flights
Friday26daily flights
Saturday11daily flights