Cheap Flights from Seattle (SEA) to Chicago (ORD) from HK$530~

View HK$530 flight on Wed, 18 Feb 2026Opens in a new window

Popular airlines from Seattle to Chicago, IL (ORD-O'Hare Intl.)

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

Prices were available within the past 7 days and start at HK$530 for one-way flights and HK$1,049 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,049 Return, found 15 hours ago
HK$1,049
Return
found 15 hours ago
Select Delta flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,049 found 15 hours ago
Alaska Airlines
Sat, 17 Jan - Sat, 31 Jan
SEA
Seattle
ORD
Chicago
HK$1,382 Return, found 4 days ago
HK$1,382
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 17 Jan from Seattle to Chicago, returning Sat, 31 Jan, priced at HK$1,382 found 4 days ago
Delta
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,404 Return, found 15 hours ago
HK$1,404
Return
found 15 hours ago
Select Delta flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,404 found 15 hours ago
Delta
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,448 Return, found 15 hours ago
HK$1,448
Return
found 15 hours ago
Select Delta flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,448 found 15 hours ago
Alaska Airlines
Fri, 20 Feb - Thu, 12 Mar
SEA
Seattle
ORD
Chicago
HK$1,457 Return, found 4 days ago
HK$1,457
Return
found 4 days ago
Select Alaska Airlines flight, departing Fri, 20 Feb from Seattle to Chicago, returning Thu, 12 Mar, priced at HK$1,457 found 4 days ago
Delta
Fri, 13 Feb - Sun, 1 Mar
SEA
Seattle
ORD
Chicago
HK$1,620 Return, found 4 days ago
HK$1,620
Return
found 4 days ago
Select Delta flight, departing Fri, 13 Feb from Seattle to Chicago, returning Sun, 1 Mar, priced at HK$1,620 found 4 days ago
Delta
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,651 Return, found 15 hours ago
HK$1,651
Return
found 15 hours ago
Select Delta flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,651 found 15 hours ago
Alaska Airlines
Sat, 28 Feb - Thu, 19 Mar
SEA
Seattle
ORD
Chicago
HK$1,694 Return, found 4 days ago
HK$1,694
Return
found 4 days ago
Select Alaska Airlines flight, departing Sat, 28 Feb from Seattle to Chicago, returning Thu, 19 Mar, priced at HK$1,694 found 4 days ago
United
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,737 Return, found 15 hours ago
HK$1,737
Return
found 15 hours ago
Select United flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,737 found 15 hours ago
American Airlines
Wed, 18 Feb - Tue, 24 Feb
SEA
Seattle
ORD
Chicago
HK$1,747 Return, found 15 hours ago
HK$1,747
Return
found 15 hours ago
Select American Airlines flight, departing Wed, 18 Feb from Seattle to Chicago, returning Tue, 24 Feb, priced at HK$1,747 found 15 hours ago

Find the cheapest month to fly from Seattle (SEA) to Chicago (ORD)

February is typically the cheapest month to fly

From HK$827 - HK$1,499 per traveller.

Alternative airports near Chicago

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

Select flight to O'Hare Intl. ORD. Cheapest option available. Average driving time to city centre is 23 minutes. Flights from HK$1,855
ORD
O'Hare Intl.
Cheapest
Average driving time to city centre23 min
Flights from HK$1,855
Seattle to Chicago route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
O'Hare Intl.
Airlines serving
American Airlines, Delta, United
Return price
HK$1,049
Distance
2745 km
Average flight time
6 hours 7 mins

Flights from Seattle to Chicago

Book cheap flights from Seattle (SEA) to Chicago (ORD) 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 Seattle (SEA) to Chicago (ORD) 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 Seattle (SEA) to Chicago (ORD) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

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

If you would like to book flights to Chicago more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Chicago is HK$530 now!

 

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Seattle - Tacoma Intl. Airport (SEA) to ORD was HK$1,049. 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 Sea-Tac Airport to ORD?
The majority of flights can be canceled online, but each airline has a different set of terms and conditions. If you do need to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from SEA to O'Hare Airport 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 Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from SEA to ORD?
The flight distance between Sea-Tac Airport and O'Hare Airport is 2,800 kilometers. Pack yourself a drink, a few snacks and something to read. Keep yourself entertained and the hours will fly by.
Which airlines fly direct from SEA to O'Hare Airport?
You have lots of choice when traveling from Seattle - Tacoma Intl. Airport (SEA) to O'Hare Intl. Airport (ORD). Lock in your ticket with one of these top airlines:

  • 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 Seattle - Tacoma Intl. Airport (SEA) to O'Hare Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can occasionally nab a bargain, with some of the cheapest fares from Sea-Tac Airport to O'Hare Intl. Airport (ORD) showing up a few weeks prior to the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline advertises prices that far in advance.

Explore a world of travel with Expedia

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