$90 Cheap United flights Chicago (ORD) to Seattle (SEA)

View $90 flight on Fri, Oct 31, 2025Opens in a new window

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$90 Cheap United flights Chicago (ORD) to Seattle (SEA)

Prices were available within the past 7 days and start at $90 for one-way flights and $187 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Aug 26 - Sat, Aug 30
ORD
Chicago
SEA
Seattle
$187 Roundtrip, found 1 hour ago
$187
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Aug 26 from Chicago to Seattle, returning Sat, Aug 30, priced at $187 found 1 hour ago
United
Tue, Mar 3 - Tue, Mar 10
ORD
Chicago
SEA
Seattle
$195 Roundtrip, just found
$195
Roundtrip
just found
Select United flight, departing Tue, Mar 3 from Chicago to Seattle, returning Tue, Mar 10, priced at $195 just found
United
Tue, Sep 23 - Wed, Sep 24
ORD
Chicago
SEA
Seattle
$197 Roundtrip, just found
$197
Roundtrip
just found
Select United flight, departing Tue, Sep 23 from Chicago to Seattle, returning Wed, Sep 24, priced at $197 just found
United
Sat, Nov 22 - Thu, Nov 27
ORD
Chicago
SEA
Seattle
$202 Roundtrip, found 9 hours ago
$202
Roundtrip
found 9 hours ago
Select United flight, departing Sat, Nov 22 from Chicago to Seattle, returning Thu, Nov 27, priced at $202 found 9 hours ago
United
Tue, Oct 21 - Wed, Oct 22
ORD
Chicago
SEA
Seattle
$202 Roundtrip, just found
$202
Roundtrip
just found
Select United flight, departing Tue, Oct 21 from Chicago to Seattle, returning Wed, Oct 22, priced at $202 just found
United
Sat, Nov 22 - Thu, Nov 27
ORD
Chicago
SEA
Seattle
$203 Roundtrip, found 9 hours ago
$203
Roundtrip
found 9 hours ago
Select United flight, departing Sat, Nov 22 from Chicago to Seattle, returning Thu, Nov 27, priced at $203 found 9 hours ago
Flights from Chicago (ORD) to Seattle (SEA)
Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
1715 mi
Average flight time
2 hours 34 mins

Frequently asked questions

How much is a United Airlines flight from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)?
Finding cheap one-way United Airlines flights from ORD to SEA from $90 on Expedia couldn't be easier — just filter by "Price (lowest to highest)." Or check out our budget-friendly round-trip fares from $187 for your next getaway.**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.
What is the cheapest month to fly from ORD to SEA with United Airlines?
Browse for return or one-way flights to Seattle in January or February. You could find an affordable fare with United Airlines during these off-season months.
What is the cheapest time to book flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) with United Airlines?
Look for cheap United Airlines flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) one to three months ahead of your departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day of the week to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.
Does United Airlines fly nonstop from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines has direct flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA), with 21 weekly departures. Simply apply the "Nonstop" and "Airline" filters during your search on Expedia to see all direct United Airlines flights to SEA.
How long does it take to fly from ORD to SEA with United Airlines?
The journey time for a direct United Airlines flight from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) takes around 4h 47m.
Which day of the week has the most United Airlines flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)?
United Airlines operates the most flights from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA) on Thursday. With up to 4 daily departures, you'll get the most options and flexibility on this day.
What is the earliest United Airlines flight from ORD to SEA?
The earliest flight from ORD to SEA with United Airlines leaves at 9:20AM UTC-6. You'll land at 12:07PM UTC-8. The final United Airlines flight of the day takes off at 8:20PM UTC-6 and arrives at 11:09PM UTC-8. With 20% fewer cancellations for morning and mid-morning flights, setting off early is often the wisest option.**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.
What airports does United Airlines fly into in Seattle?
United Airlines flights from O'Hare Intl. Airport (ORD) to Seattle touch down at Seattle - Tacoma Intl. Airport (SEA). This is the main gateway to this city.
Why fly with United Airlines from ORD to SEA?
A rewarding loyalty program and the ability to collect points through United Mileage Plus are the start of the reasons to fly from ORD to SEA with United Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It's yours to spend on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)?
You'll likely be on a Boeing 737-800 or an Airbus A320 when flying United 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 due to operational requirements.
Can I change or cancel my United Airlines flight from O'Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA)?
In most cases, you can cancel or modify your flight, although there may be a charge if you booked over 24 hours ago. Need to keep your options open? Use our "Changes included" or "No cancel fee" filter to find flights that won't penalize you if you need to revise your plans. To modify your booking, head to "Trips," select your flight and click on "Manage Booking" for further information.

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