There are most likely no direct flights on the Chicago — Seattle route
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 Chicago to Seattle. 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 Chicago to Seattle, 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.
There are most likely no direct flights on the Chicago — Seattle route
Chicago — Seattle
06/08/2026
Departure
Direct flight
UA341
starting at $250
Chicago — Seattle
06/11/2026
Departure
Direct flight
UA1660
starting at $296
Chicago — Seattle
09/13/2026
Departure
Direct flight
AS583
starting at $237
Chicago — Seattle
09/23/2026
Departure
Direct flight
AS587
starting at $235
Chicago — Seattle
06/05/2026
Departure
Direct flight
AA2523
starting at $439
Chicago — Seattle
09/11/2026
Departure
Direct flight
WN2826
starting at $182
Chicago — Seattle
07/23/2026
Departure
Direct flight
WN2890
starting at $279
Chicago — Seattle
07/28/2026
Departure
Direct flight
UA341
starting at $178
Chicago — Seattle
06/17/2026
Departure
Direct flight
AS329
starting at $171
Chicago — Seattle
11/05/2026
Departure
Direct flight
AS429
starting at $296
starting at $178
starting at $122
starting at $175
starting at $182
starting at $149
More than 5 airlines operate flights from Chicago to Seattle, including United Airlines, Alaska Airlines, American Airlines, Southwest Airlines, and Frontier Airlines. This is a popular route, so passengers can choose tickets based on budget and preferences. Ticket prices start from $122, and our service lets you instantly compare all options. The variety of offers simplifies planning: you can choose budget fares or more comfortable options with baggage included or extra services. We help you find the best deals so your trip is cost-efficient.
The cheapest flight ticket from Chicago to Seattle according to data for the last 48 hours costs $122
Often the best time to buy tickets from Chicago to Seattle is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from Chicago to Seattle can be found flying in these months: November, September, June.
The fastest flights from Chicago to Seattle start from 4 hours 35 minutes in the air.
The following airlines operate direct flights on the route Chicago — Seattle: United Airlines, Alaska Airlines, American Airlines
The cost of a one-way flight from Chicago to Seattle ranges from $122 (November 2026) to $164 (July 2026). On average, the ticket price is about $148–$157.
On the Chicago — Seattle route, prices first decline, hit a low, then start rising again. The middle of the period creates a price window — the best time to book.
Prices fall from July 2026 to November 2026 (25%), then rise from June 2026 to July 2026 (+5%). The best period is September 2026–November 2026 ($136), the most expensive is June 2026–July 2026 ($161).
The best time to buy is September 2026–November 2026, when prices are at their lowest. This can save you up to 16% compared to the expensive months (June 2026–July 2026).
Monthly price variation is 10.7%. On this route, your departure date noticeably affects the cost, and choosing wisely can lead to real savings.
We couldn't find any special offers for flights from Chicago to Seattle
The cheapest one-way flight from Chicago to Seattle departs on 11/04/2026, is operated by Alaska Airlines and costs $122
The cheapest roundtrip flight from Chicago to Seattle departs on 06/16/2026, is operated by Alaska Airlines and costs $162
Fastest flight from Chicago to Seattle takes 4h 35m
There are direct flights on this route 6 days a week: Su, Mo, Tu, We, Th, and Fr
The distance between Chicago and Seattle is 2788km (1729 miles). The time difference between Chicago and Seattle is 2h
