Cheap flights from Seattle to Chicago

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The best prices from Seattle 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 (SEA) to Chicago (CHI)

SEA - CHI
Price
C$ 180 - C$ 390
CHI
Temperature
1 - 29 °C
CHI
Rainfall
17 - 109 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

Round-trip from

C$ 180

From Seattle to Chicago

One-way from

C$ 76

One-way flight from Seattle to Chicago

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 Seattle to Chicago?

Tuesday is generally a great day to depart. Flying on this day could help you save up to 29%.

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

Travellers have found it’s best to book a flight 34 days in advance to save up to 86% 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 34 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 Seattle to Chicago 1-2 weeks in advance for as low as C$ 454, or C$ 614 for flights within the next 24 hours.

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

Flights from Seattle to Chicago lean towards being more expensive in January. Prices are generally better when you fly from Seattle to Chicago in April, with the cheapest ticket starting at C$ 250.

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

Unlike at noon, when flights are generally more expensive, you can save up to 19% on flights from Seattle to Chicago by exploring options for tickets in the afternoon.

Cheap flights from Seattle to Chicago in November, December 2020

The best prices found for SEA to CHI flights for November, December
11 Dec - 13 Dec
C$ 89pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
11 Dec - 13 Dec
C$ 150pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
10 Dec - 13 Dec
C$ 156pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

Seattle to Chicago 2021 flight deals

Cheap flights to Chicago from Seattle found for next year
11 Dec - 13 Dec
C$ 89pp
SEA
Seattle/Tacoma Intl
Frontier
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
11 Dec - 13 Dec
C$ 150pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
10 Dec - 13 Dec
C$ 156pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
Direct
SEA
Seattle/Tacoma Intl

Direct flights to Chicago from Seattle

Save time with Seattle to Chicago direct flight deals
11 Dec - 13 Dec
C$ 150pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
18 Jan - 18 Jan
C$ 179pp
SEA
Seattle/Tacoma Intl
Alaska Airlines
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Alaska Airlines
Direct
SEA
Seattle/Tacoma Intl
4 Dec - 11 Dec
C$ 191pp
SEA
Seattle/Tacoma Intl
Delta
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
Direct
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
4 Dec - 11 Dec
C$ 191pp
SEA
Seattle/Tacoma Intl
Delta
Direct
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
3 Dec - 11 Dec
C$ 196pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
Direct
SEA
Seattle/Tacoma Intl
3 Dec - 11 Dec
C$ 203pp
SEA
Seattle/Tacoma Intl
Delta
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Delta
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Chicago from Seattle

The cheapest one-way flights from Seattle to Chicago
4:55 a.m. - 10:44 a.m.
Delta
Direct
3h 49m
SEA - ORD
Delta
C$ 76
Delta
3:10 a.m. - 9:25 a.m.
Alaska Airlines
Direct
4h 15m
SEA - ORD
Alaska Airlines
4:55 a.m. - 10:44 a.m.
Delta
Direct
3h 49m
SEA - ORD
Delta
C$ 104
Delta

Related info for your journey

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

Flight FAQs

From Seattle to Chicago

Can I find flights from Seattle to Chicago for under C$ 131 on Cheapflights?

Yes, there are multiple flights from Seattle to Chicago for under C$ 131. The cheapest flight booked recently is on Frontier for just C$ 89, but on average you can expect to pay C$ 190.

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

Airlines globally have implemented additional safety measures to accommodate you. Alaska Airlines and Delta are some airlines that have done so. Some of the new policies that have been implemented to accommodate travellers flying from Seattle/Tacoma Intl to Chicago are improved sanitation, HEPA filters, mask requirements, socially-distanced seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

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$ 261 on Cheapflights?

Cheapflights has 20 direct flights from Seattle to Chicago under C$ 261. A good price for a direct flight from Seattle to Chicago is less than C$ 239.

Are there last-minute flights available from Seattle to Chicago for under C$ 261?

There are currently 20+ open flights from Seattle to Chicago within the next 7 days for less than C$ 261.

What days are direct flights available from Seattle to Chicago?

Days when direct flights are available for this flight are: Sunday, Tuesday, Wednesday, Thursday, Friday, Saturday.

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

36 flight departures from Seattle/Tacoma Intl to Chicago per day on average.
Early Morning (Midnight to 6am) - 3% of flight departures
Morning (6am - Noon) - 81% of flight departures
Afternoon (Noon - 6pm) - 6% of flight departures
Evening (6pm - Midnight) - 11% of flight departures

Is Seattle weather warmer or cooler than Chicago?

You can imagine temperatures to be in the 29 °C range in July. The weather in Chicago is generally hotter than Seattle's. As flight availability is subject to become more limited as peak season approaches it is ideal to book in a timely manner.

How long is the flight from Seattle to Chicago?

There are many flights that can get you from Seattle to Chicago in 3h 36m. Fly via Delta, United Airlines, or Alaska Airlines to get the fastest option. Seattle and Chicago are separated by a distance of 2776 km. Generally, flights for this route are direct.

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

According to our current data, Frontier (C$ 89), Alaska Airlines (C$ 151), and Delta (C$ 156) offers the cheapest pricing from Seattle to Chicago. Frontier is currently priced 68% below the average price you’ll pay for this route.

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

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at C$ 76. Delta is not the only option available. At the moment, Alaska Airlines is another option, for C$ 91.

Destination information for Chicago

Things to know before you go. Useful info for your trip from Seattle to Chicago
Flight duration
4h 25m
Average temperature for November in Chicago
11.0 °C
Avg rainfall for November in Chicago
62.0 mm

Airports servicing Seattle

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Top 5 airlines 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.

Airline Cheapest Average Flexibility On-time COVID-19 safety
Delta
C$ 80 C$ 210 No cancel fee N/A
Search Delta flights
Spirit Airlines
C$ 114 C$ 226 No cancel fee 65%
Search Spirit Airlines flights
United Airlines
C$ 139 C$ 227 No cancel fee 69%
Search United Airlines flights
Alaska Airlines
C$ 84 C$ 254 No cancel fee 75%
Search Alaska Airlines flights
American Airlines
C$ 137 C$ 261 No cancel fee 71%
Search American Airlines flights

Hourly flight availability from Seattle to Chicago

Morning 6 AM to noon 56% of flight departures
Afternoon Noon to 6 PM 27% of flight departures
Early morning Midnight to 6 AM 12% of flight departures
Evening 6 PM to midnight 5% of flight departures
Midnight
6 AM
Noon
6 PM
Weekly flight availability
from Seattle to Chicago
Sunday
14 daily flights
Monday
19 daily flights
Tuesday
19 daily flights
Wednesday
17 daily flights
Thursday
3 daily flights
Friday
4 daily flights
Saturday
15 daily flights
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