฿2,845 Cheap Flights from Chicago (ORD) to Seattle (SEA)

View ฿2,845 flight on Tue, 17 Jun 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 ฿2,845 for one-way flights and ฿5,685 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 11 Jun - Tue, 17 Jun
ORD
Chicago
SEA
Seattle
฿5,685 Return, found 1 day ago
฿5,685
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Jun from Chicago to Seattle, returning Tue, 17 Jun, priced at ฿5,685 found 1 day ago
Delta
Tue, 13 May - Tue, 20 May
ORD
Chicago
SEA
Seattle
฿5,745 Return, found 6 days ago
฿5,745
Return
found 6 days ago
Select Delta flight, departing Tue, 13 May from Chicago to Seattle, returning Tue, 20 May, priced at ฿5,745 found 6 days ago
Delta
Wed, 11 Jun - Tue, 17 Jun
ORD
Chicago
SEA
Seattle
฿6,690 Return, found 1 day ago
฿6,690
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Jun from Chicago to Seattle, returning Tue, 17 Jun, priced at ฿6,690 found 1 day ago
Delta
Tue, 13 May - Tue, 20 May
ORD
Chicago
SEA
Seattle
฿6,765 Return, found 6 days ago
฿6,765
Return
found 6 days ago
Select Delta flight, departing Tue, 13 May from Chicago to Seattle, returning Tue, 20 May, priced at ฿6,765 found 6 days ago
Delta
Wed, 11 Jun - Tue, 17 Jun
ORD
Chicago
SEA
Seattle
฿7,200 Return, found 1 day ago
฿7,200
Return
found 1 day ago
Select Delta flight, departing Wed, 11 Jun from Chicago to Seattle, returning Tue, 17 Jun, priced at ฿7,200 found 1 day ago
United
Tue, 13 May - Tue, 20 May
ORD
Chicago
SEA
Seattle
฿7,280 Return, found 6 days ago
฿7,280
Return
found 6 days ago
Select United flight, departing Tue, 13 May from Chicago to Seattle, returning Tue, 20 May, priced at ฿7,280 found 6 days ago
United
Tue, 13 May - Tue, 20 May
ORD
Chicago
SEA
Seattle
฿7,460 Return, found 6 days ago
฿7,460
Return
found 6 days ago
Select United flight, departing Tue, 13 May from Chicago to Seattle, returning Tue, 20 May, priced at ฿7,460 found 6 days ago
Delta
Sat, 17 May - Sun, 18 May
ORD
Chicago
SEA
Seattle
฿7,695 Return, found 1 day ago
฿7,695
Return
found 1 day ago
Select Delta flight, departing Sat, 17 May from Chicago to Seattle, returning Sun, 18 May, priced at ฿7,695 found 1 day ago
Delta
Tue, 13 May - Tue, 20 May
ORD
Chicago
SEA
Seattle
฿7,780 Return, found 6 days ago
฿7,780
Return
found 6 days ago
Select Delta flight, departing Tue, 13 May from Chicago to Seattle, returning Tue, 20 May, priced at ฿7,780 found 6 days ago
American Airlines
Wed, 11 Jun - Tue, 17 Jun
ORD
Chicago
SEA
Seattle
฿9,045 Return, found 1 day ago
฿9,045
Return
found 1 day ago
Select American Airlines flight, departing Wed, 11 Jun from Chicago to Seattle, returning Tue, 17 Jun, priced at ฿9,045 found 1 day ago

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 ฿5,685. 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 kilometres. 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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