Cheap Flights from Chicago (ORD) to Seattle (SEA) from HK$702~

View HK$702 flight on Thu, 12 Mar 2026Opens in a new window

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

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Find Cheap Flights from Chicago (ORD) to Seattle (SEA)

Prices were available within the past 7 days and start at HK$702 for one-way flights and HK$1,382 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, 12 Feb - Tue, 17 Feb
ORD
Chicago
SEA
Seattle
HK$1,382 Return, found 3 days ago
HK$1,382
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 12 Feb from Chicago to Seattle, returning Tue, 17 Feb, priced at HK$1,382 found 3 days ago
Delta
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$1,393 Return, found 3 days ago
HK$1,393
Return
found 3 days ago
Select Delta flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$1,393 found 3 days ago
Alaska Airlines
Thu, 12 Feb - Mon, 16 Feb
ORD
Chicago
SEA
Seattle
HK$1,694 Return, found 3 days ago
HK$1,694
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 12 Feb from Chicago to Seattle, returning Mon, 16 Feb, priced at HK$1,694 found 3 days ago
Delta
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$1,695 Return, found 3 days ago
HK$1,695
Return
found 3 days ago
Select Delta flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$1,695 found 3 days ago
American Airlines
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$1,748 Return, found 3 days ago
HK$1,748
Return
found 3 days ago
Select American Airlines flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$1,748 found 3 days ago
Delta
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$2,007 Return, found 3 days ago
HK$2,007
Return
found 3 days ago
Select Delta flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$2,007 found 3 days ago
Delta
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$2,009 Return, found 3 days ago
HK$2,009
Return
found 3 days ago
Select Delta flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$2,009 found 3 days ago
Delta
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$2,051 Return, found 3 days ago
HK$2,051
Return
found 3 days ago
Select Delta flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$2,051 found 3 days ago
United
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$2,060 Return, found 3 days ago
HK$2,060
Return
found 3 days ago
Select United flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$2,060 found 3 days ago
American Airlines
Sun, 15 Feb - Thu, 19 Feb
ORD
Chicago
SEA
Seattle
HK$2,091 Return, found 3 days ago
HK$2,091
Return
found 3 days ago
Select American Airlines flight, departing Sun, 15 Feb from Chicago to Seattle, returning Thu, 19 Feb, priced at HK$2,091 found 3 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from HK$2,306
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from HK$2,306
Chicago to Seattle route information
Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Return price
HK$1,382
Distance
2745 km
Average flight time
2 hours 43 mins

Flights from Chicago to Seattle

Book cheap flights from Chicago (ORD) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chicago (ORD) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chicago (ORD) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$702 now!

 

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 HK$1,382. 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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