starting at $167
starting at $122
starting at $199
starting at $366
starting at $137
Flaut.Travel was designed and developed by a team dedicated to making the process of searching, comparing and booking airline tickets as easy and convenient as possible. Our service helps travelers to find and buy the cheapest flights from Seattle to Chicago. We have connected more than 40 airlines and airline ticketing agencies to help you find the most suitable and affordable flight option.
A non-stop flight is the most convenient and comfortable way to fly from Seattle to Chicago, despite the fact that sometimes flights with transfers can cost significantly less.
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Answers to questions about the route that travelers are most interested in.
We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
The route Seattle — Chicago is served by many carriers — 5 in total, including Southwest Airlines, Alaska Airlines, United Airlines, American Airlines, and Frontier Airlines. This gives passengers wide opportunities: from finding the lowest fare (from $122) to selecting flights by schedule or service class. Our service aggregates data from multiple booking systems so you can compare offers in one place. This saves time and money: no need to check dozens of sites — just pick the right option and book online.
starting at $167
starting at $122
starting at $199
starting at $366
starting at $137
Seattle — Chicago
06/06/2026
Departure
Direct flight
WN2304
starting at $322
Seattle — Chicago
09/14/2026
Departure
Direct flight
AS538
starting at $236
Seattle — Chicago
06/02/2026
Departure
Direct flight
AS328
starting at $237
Seattle — Chicago
06/20/2026
Departure
Direct flight
UA2835
starting at $354
Seattle — Chicago
08/31/2026
Departure
Direct flight
AS410
starting at $180
Seattle — Chicago
09/07/2026
Departure
Direct flight
AA1872
starting at $366
Seattle — Chicago
11/04/2026
Departure
Direct flight
UA2618
starting at $277
There are most likely no direct flights on the Seattle — Chicago route
The cheapest one-way flight from Seattle to Chicago departs on 11/04/2026, is operated by Alaska Airlines and costs $122
The cheapest roundtrip flight from Seattle to Chicago departs on 08/13/2026, is operated by Alaska Airlines and costs $315
Fastest flight from Seattle to Chicago takes 4 hours
There are direct flights on this route 4 days a week: Mo, Tu, We, and Sa
The distance between Seattle and Chicago is 2788km (1729 miles). There are 129 direct flights from Seattle to Chicago. The time difference between Seattle and Chicago is 2h. Flights from Seattle begin at 5:00 AM. The latest flight from Seattle departs at 12:17 AM
We couldn't find any special offers for flights from Seattle to Chicago
The cheapest flight ticket from Seattle to Chicago according to data for the last 48 hours costs $122
Often the best time to buy tickets from Seattle to Chicago is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Seattle to Chicago can be found flying in these months: November, September, August.
The fastest flights from Seattle to Chicago start from 4 hours in the air.
The following airlines operate direct flights on the route Seattle — Chicago: Southwest Airlines, Alaska Airlines, United Airlines
In different months, ticket prices from Seattle to Chicago vary: minimum — $122 (November 2026), maximum — $194 (June 2026). Typically, the flight costs $155–$167.
Good news for anyone planning a flight from Seattle to Chicago: prices are steadily declining. From June 2026 to November 2026, tickets dropped by 37%, and the trend continues.
The most notable drop occurred from June 2026 to November 2026 — down 37%. The best period is September 2026–November 2026 (averaging $130), while the most expensive is June 2026–August 2026 ($180).
Since prices are falling, there's no rush to buy. The most cost-effective travel period is September 2026–November 2026: savings compared to expensive months can reach up to 28%.
Monthly price variation is 17.8%. Choosing the right departure date can lead to significant savings on this route.