Cheap Alaska Airlines flights Chicago (ORD) to Seattle (SEA)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Alaska Airlines return flights from ORD to SEA. Affordable one-way fares are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

January is one of the least expensive months to jet away to Seattle with Alaska Airlines. You could also find fantastic deals on return and one-way tickets in February.

For cheap Alaska Airlines fares from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA), start searching one to three months before your planned departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact how much you pay. Sunday is usually the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Yes, you can travel from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) on one of Alaska Airlines’s 20 direct weekly flights. Apply Expedia’s “Nonstop” and “Airline” filters to find the Alaska Airlines flight that’ll land at SEA at a time that suits you.

From takeoff to touchdown, a direct Alaska Airlines flight from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) takes around 4h 47m.

If it’s flexibility you’re after, Thursday offers the most choice for Alaska Airlines flights from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). You can select from 3 different departures.

Taking off from ORD at 7:45AM UTC-6, the earliest Alaska Airlines flight to SEA arrives at 10:36AM UTC-8. Traveling early means you’ll be less likely to encounter cancellations or delays.* Prefer to travel later? The last Alaska Airlines flight from ORD to SEA departs at 6:55PM UTC-6 and touches down at 9:46PM UTC-8.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Hop on an Alaska Airlines flight from O’Hare Intl. Airport (ORD) to Seattle, and you’ll most likely touch down at Seattle - Tacoma Intl. Airport (SEA). This is the airline’s main hub in this city.

Offering an excellent in-flight experience and a rewarding loyalty program, Alaska Airlines is a top choice for many travelers heading from ORD to SEA. What’s more, if you’re a Mileage Plan and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You’ll likely board a Boeing 737-900 or a Boeing 737 MAX 9 when flying Alaska Airlines from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). However, keep in mind that a different plane could be assigned to your route depending on operational requirements.

Depending on the type of fare you purchased, a fee typically applies if you modify or cancel your booking more than 24 hours after it’s been confirmed. To secure tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when searching for flights. For more information on modifying or canceling your reservation, visit “Trips,” select your flight and tick “Manage Booking.”