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Cheap flights from Seattle to Chicago (SEA - CHI)

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

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

Travelers have found that booking a Tuesday departure is the best way to save up to 22% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

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

Travelers have found it’s best to book a flight 37 days in advance to save up to 10% 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 37 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 $177, or $177 for flights within the next 24 hours.

When is the cheapest time to fly from Seattle to Chicago (03A - CHI)?

A simple way to save on the total cost of your ticket is to fly from Seattle to Chicago in the evening. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the morning.

Cheap flights from Seattle to Chicago in September, October 2020

The best prices found for SEA to CHI flights for September, October
17 Oct - 26 Oct
$89pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Frontier
 
1 STOP
SEA
Seattle/Tacoma Intl
22 Oct - 26 Oct
$93pp
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
17 Oct - 25 Oct
$97pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Seattle to Chicago 2020 flight deals

Cheap flights to Chicago from Seattle found for this year
5 Nov - 7 Nov
$70pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
3 Nov - 9 Nov
$72pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
9 Nov - 11 Nov
$74pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SEA
Seattle/Tacoma Intl

Non-stop flights to Chicago from Seattle

Save time with Seattle to Chicago direct flight deals
3 Nov - 9 Nov
$72pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
9 Nov - 11 Nov
$74pp
SEA
Seattle/Tacoma Intl
Spirit Airlines
Non-Stop
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Spirit Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
4 Nov - 8 Nov
$80pp
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

Last minute flights from Seattle to Chicago

Late deals on round-trip flights to Chicago from Seattle, departing today and this week
6 Oct - 17 Oct
$137pp
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 Oct - 20 Oct
$140pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
United Airlines
Non-Stop
SEA
Seattle/Tacoma Intl
5 Oct - 24 Oct
$144pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
 
1 STOP
ORD
Chicago O'Hare Intl
ORD
Chicago O'Hare Intl
Multiple Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Chicago from Seattle

The cheapest one-way flights from Seattle to Chicago
7:32 am - 11:45 am
Spirit Airlines
2 Stops
26h 13m
SEA - ORD
Spirit Airlines
$79
Kiwi.com
3:13 pm - 7:10 am
Multiple Airlines
1 Stop
13h 57m
SEA - ORD
Multiple Airlines
$98
Kiwi.com
8:45 pm - 8:00 am
Delta
1 Stop
9h 15m
SEA - ORD
Delta
$99
Delta

Related info for your journey

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

Flight FAQs

From Seattle to Chicago

Are flight prices decreasing from Seattle to Chicago 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 Seattle and Chicago 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.

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

Yes, there are multiple flights from Seattle to Chicago for under $100. The cheapest flight booked recently is on Multiple Airlines for just $70, but on average you can expect to pay $93.

Are there nonstop flights from Seattle to Chicago for under $100 on Cheapflights?

Cheapflights has at least 20 direct flights from Seattle to Chicago under $100. A good price for a nonstop flight from Seattle to Chicago is less than $114.

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

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

What days are nonstop flights available from Seattle to Chicago?

Nonstop flights are available for this route on the following days: Friday.

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

Per day, 2 flights depart from Seattle to Chicago on average.
Morning (6am - Noon) - 50% of flight departures
Afternoon (Noon - 6pm) - 50% of flight departures

Is Seattle weather warmer or cooler than Chicago?

Our data indicates that the weather will be 84 °F on average in the month of July. The temperature in Chicago is typically hotter than in Seattle. If you're traveling when the temperature is at its warmest, push to plan early, as flight price and availability will have an impact on your travels. For the best results, search for flights well in advance or after peak season.

How long is the flight from Seattle to Chicago?

Spirit Airlines and Delta can get you from Seattle to Chicago in just under 3h 40m. Your travel time will be generally consistent. Airlines will cover 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 Spirit Airlines. Our recent data shows that you can find tickets from as low as $72 on this airline. An additional option worth looking into is Delta, starting at $105.

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

One-way options have recently been found by users for as low as $37 on Spirit Airlines. Another option is Delta, who have fights from $51.

Alternative routes for Seattle to Chicago

Destination information for Chicago

Things to know before you go. Useful info for your trip from Seattle to Chicago
Flight duration
4h 04m
Average temperature for September in Chicago
77.0 °F
Avg rainfall for September in Chicago
2.4 ″

Airports servicing Seattle

Seattle King County/Boeing (BFI)
Seattle Lake Union Spb (LKE)

Airports servicing Chicago

Chicago Midway (MDW)
Rockford (RFD)

Hourly flight availability from Seattle to Chicago

Morning 6 AM to noon 51% of SEA to CHI departures
Early morning Midnight to 6 AM 25% of SEA to CHI departures
Afternoon Noon to 6 PM 17% of SEA to CHI departures
Evening 6 PM to midnight 7% of SEA to CHI departures
Midnight
6 AM
Noon
6 PM
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