CA $117 Cheap Flights from Chicago (ORD) to Seattle (SEA)

View CA $117 flight on Sat, Aug. 9, 2025Opens in a new window

Popular airlines from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Chicago (ORD) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $117 for one-way flights and CA $233 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat., May 31 - Sat., Jun. 7
ORD
Chicago
SEA
Seattle
CA $233 Roundtrip, found 9 hours ago
CA $233
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Sat., May 31 from Chicago to Seattle, returning Sat., Jun. 7, priced at CA $233 found 9 hours ago
Delta
Tue., Aug. 12 - Wed., Aug. 27
ORD
Chicago
SEA
Seattle
CA $234 Roundtrip, found 1 day ago
CA $234
Roundtrip
found 1 day ago
Select Delta flight, departing Tue., Aug. 12 from Chicago to Seattle, returning Wed., Aug. 27, priced at CA $234 found 1 day ago
Alaska Airlines
Tue., Jul. 15 - Wed., Jul. 23
ORD
Chicago
SEA
Seattle
CA $236 Roundtrip, found 2 days ago
CA $236
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue., Jul. 15 from Chicago to Seattle, returning Wed., Jul. 23, priced at CA $236 found 2 days ago
Alaska Airlines
Tue., Jul. 8 - Sun., Aug. 31
ORD
Chicago
SEA
Seattle
CA $240 Roundtrip, found 22 hours ago
CA $240
Roundtrip
found 22 hours ago
Select Alaska Airlines flight, departing Tue., Jul. 8 from Chicago to Seattle, returning Sun., Aug. 31, priced at CA $240 found 22 hours ago
Delta
Tue., Jul. 1 - Tue., Jul. 22
ORD
Chicago
SEA
Seattle
CA $242 Roundtrip, found 2 days ago
CA $242
Roundtrip
found 2 days ago
Select Delta flight, departing Tue., Jul. 1 from Chicago to Seattle, returning Tue., Jul. 22, priced at CA $242 found 2 days ago
Delta
Tue., Jul. 1 - Wed., Jul. 9
ORD
Chicago
SEA
Seattle
CA $244 Roundtrip, found 2 days ago
CA $244
Roundtrip
found 2 days ago
Select Delta flight, departing Tue., Jul. 1 from Chicago to Seattle, returning Wed., Jul. 9, priced at CA $244 found 2 days ago
Alaska Airlines
Sat., May 24 - Sat., May 31
ORD
Chicago
SEA
Seattle
CA $248 Roundtrip, found 3 days ago
CA $248
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat., May 24 from Chicago to Seattle, returning Sat., May 31, priced at CA $248 found 3 days ago
American Airlines
Sat., Aug. 9 - Mon., Aug. 11
ORD
Chicago
SEA
Seattle
CA $275 Roundtrip, just found
CA $275
Roundtrip
just found
Select American Airlines flight, departing Sat., Aug. 9 from Chicago to Seattle, returning Mon., Aug. 11, priced at CA $275 just found
Hawaiian Airlines
Mon., Jul. 7 - Sun., Aug. 31
ORD
Chicago
SEA
Seattle
CA $295 Roundtrip, found 22 hours ago
CA $295
Roundtrip
found 22 hours ago
Select Hawaiian Airlines flight, departing Mon., Jul. 7 from Chicago to Seattle, returning Sun., Aug. 31, priced at CA $295 found 22 hours ago
Spirit Airlines
Wed., May 21 - Wed., May 28
ORD
Chicago
SEA
Seattle
CA $296 Roundtrip, found 1 day ago
CA $296
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed., May 21 from Chicago to Seattle, returning Wed., May 28, priced at CA $296 found 1 day ago
Flight from Chicago to Seattle (ORD - SEA) route information
Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, Spirit Airlines, Sun Country Airlines, United
Roundtrip price
CA $225
Distance
2745 km

Chicago to Seattle Flights

Ready for an adventure? Thought so! Prepare to see the sights when you book your trip from Chicago to Seattle with Expedia.ca. Whether you’re visiting for business or pleasure, we know how important it is to bring home travel stories. Maybe your tales will include the best dinner of your life, or the weirdest street art you saw in the city, or the concert that turned you into a fan of a new band. Whatever it is, your new favourite anecdote is right around the corner. Book your trip from ORD to SEA and begin your journey!

Getting a cheap deal on your trip sets the tone for the perfect holiday. And with Expedia.ca, you know you can travel from Chicago to Seattle on the cheap, with enough money left over for a stellar time in the city. That could mean more tours with the kids, more concerts with the spouse, more dessert amongst co-workers, or even front row seats to a sports game if you’re travelling solo. It’s your holiday! Make it great.

Travelling shouldn’t cost an arm and a leg before you even get to relax on the plane’s armrests. Count on Expedia.ca to get you the best discounts on flights from ORD to SEA. And remember this: You can also save big when you bundle. Add a hotel or car rental deal to your flight and witness those savings add up. Hey, more money for more souvenirs, right? Right! Pack your bags and we’ll see you on the route.

Combine your Seattle flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from with Expedia Canada. Use us as your top travel destination and have the confidence that you’re getting a bargain!

Frequently asked questions

How much is a flight from O'Hare Intl. Airport (ORD) to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip journey between O’Hare Airport and SEA was CA $233. Fares this good don’t last forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from O'Hare Airport to SEA?
We understand that life can throw the odd curveball, so we’ve made it as easy as possible for you to cancel your flight online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from ORD to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for O’Hare Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from O'Hare Intl. Airport (ORD) to Sea-Tac Airport?
The flying distance from ORD to Seattle - Tacoma Intl. Airport (SEA) is 2,800 kilometers. Close your eyes or read a good book and the journey will zip by.
Which airlines fly direct from ORD to Seattle - Tacoma Intl. Airport (SEA)?
It’s a breeze to fly directly from O’Hare Intl. Airport (ORD) to Seattle - Tacoma Intl. Airport (SEA). These are the top carriers that operate nonstop services on this route:

  • Alaska Airlines - (AS) with 134 monthly flights
  • United Airlines - (UA) with 117 monthly flights
  • Delta Air Lines - (DL) with 69 monthly flights
  • American Airlines - (AA) with 60 monthly flights

Are O'Hare Airport to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can occasionally find a bargain, with some of the cheapest airfares from O’Hare Airport to Sea-Tac Airport showing up a few weeks before the departure date. If you’d rather book ahead of time, Expedia compares and updates all the best flight deals continually — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines advertise prices that far in advance.

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