Cheap flights from Seattle to Chicago from C$ 121
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Chicago are usually found in January or September, booked 26 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from Seattle to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 28 March 2025.
Round-trip from | C$ 242 |
---|---|
One-way from | C$ 121 |
Popular in | December |
Cheapest in | January |
Average price | C$ 462 |
Good round-trip deal | C$ 314 or less |
Good one-way deal | C$ 296 or less |
Find flight deals from Seattle to Chicago
Cheapest flights from Seattle to ChicagoExplore the most affordable flight options available from Seattle to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.
Explore the most affordable flight options available from Seattle to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 March 2025.
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 March 2025.
Use the filters below to find and compare flights from Seattle to Chicago that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Sat 19/4
7:55 a.m.-2:16 p.m.
Nonstop4h 21m
Chicago O'Hare Intl
Sat 26/4
9:00 a.m.-11:32 a.m.
Nonstop4h 32m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Tue 22/4
2:18 p.m.-8:25 p.m.
Nonstop4h 07m
Chicago O'Hare Intl
Wed 23/4
7:00 a.m.-1:59 p.m.
1 stop8h 59m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Wed 23/4
2:50 p.m.-11:05 p.m.
1 stop6h 15m
Chicago O'Hare Intl
Wed 30/4
2:50 p.m.-11:50 p.m.
1 stop11h 00m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Thu 1/5
5:55 p.m.-11:59 p.m.
Nonstop4h 04m
Chicago O'Hare Intl
Wed 7/5
6:20 p.m.-8:50 p.m.
Nonstop4h 30m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Sun 1/6
5:55 p.m.-11:59 p.m.
Nonstop4h 04m
Chicago O'Hare Intl
Wed 4/6
7:00 a.m.-12:55 p.m.
1 stop7h 55m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Sun 1/6
11:59 p.m.-6:07 a.m.
Nonstop4h 08m
Chicago O'Hare Intl
Wed 4/6
7:35 a.m.-10:15 a.m.
Nonstop4h 40m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Fri 16/5
3:20 p.m.-5:25 a.m.
1 stop12h 05m
Chicago O'Hare Intl
Sun 18/5
11:50 a.m.-12:10 a.m.
1 stop14h 20m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Thu 1/5
6:33 p.m.-7:09 p.m.
1 stop22h 36m
Chicago O'Hare Intl
Thu 8/5
8:05 p.m.-5:27 p.m.
1 stop23h 22m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Thu 15/5
7:10 p.m.-12:27 p.m.
1 stop15h 17m
Chicago O'Hare Intl
Sun 18/5
11:50 a.m.-12:10 a.m.
1 stop14h 20m
SeattleChicago
SEA - ORD
SEAORD
Seattle/Tacoma Intl
Sat 24/5
11:40 p.m.-5:40 a.m.
Nonstop4h 00m
Best time to book a flight from Seattle to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Seattle with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Chicago
How far ahead should I book a flight from Seattle to Chicago?
Use this chart to determine the optimal time to book a round-trip flight from Seattle to Chicago. Price data was last updated on 21 March 2025.
To ensure you get the cheapest price possible for a flight from Seattle to Chicago, you should look to book at least 26 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Seattle to Chicago?
Currently, January is the cheapest month in which you can book a flight from Seattle to Chicago (average of C$ 261). Flying from Seattle to Chicago in March is currently the most expensive (average of C$ 355). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to CHI?
Find hourly flight availability from Seattle to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.
It’s typically best to fly out from Seattle to Chicago in the afternoon. Doing so could potentially save you 73% on the flight price compared to flying in the morning, which is usually more expensive.
What is the cheapest day to fly from Seattle to Chicago?
Use this chart to determine the cheapest time to fly round-trip from Seattle to Chicago. Price data was last updated on 23 March 2025.
Travelers seeking maximum savings on their Seattle to Chicago flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Seattle to Chicago
Explore weekly flight availability from Seattle to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 28 March 2025.
The most flights from SEA to CHI are scheduled on a Thursday (45 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).
Rainfall in Chicago by month
Plan your trip to Chicago by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Chicago ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago when rainfall is around 43.0 mm.
Temperature in Chicago by month
Plan your trip to Chicago by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Chicago, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chicago. Reviews last updated 28 March 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Seattle to Chicago. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Entertainment
Comfort
Boarding
Food
Overall
Crew
Reviews
Ila,Mar 2025
HOU - DAL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Seattle to Chicago
See prices for flight routes from nearby airports that may be better suited for you.
Top 2 airlines flying from Seattle to Chicago
Discover the top 2 airlines that operate flights from Seattle to Chicago. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 28 March 2025.
Fly with Cheapflights
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How does Cheapflights help users find flights from Seattle to Chicago?
Cheapflights helps you search for flights from Seattle to Chicago via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.
Why should you use Cheapflights to find cheap flight tickets from Seattle to Chicago?
Cheapflights simply makes it quick and affordable to book flights from Seattle to Chicago by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Can Cheapflights find flights from Seattle to Chicago with no change fees?
Yes, we can. To see specific flights from Seattle to Chicago with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Seattle to Chicago become cheaper?
Yes! Start tracking prices for Seattle to Chicago flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.