₩144,900 Cheap Flights from Seattle (SEA) to Chicago (ORD)

View ₩144,900 flight on Sun, Apr 12, 2026Opens in a new window

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

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Cheap Flights from Seattle to Chicago (SEA-ORD)

Prices were available within the past 7 days and start at ₩144,900 for one-way flights and ₩322,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Apr 15 - Thu, May 7
SEA
Seattle
ORD
Chicago
₩322,100 Roundtrip, found 4 hours ago
₩322,100
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Apr 15 from Seattle to Chicago, returning Thu, May 7, priced at ₩322,100 found 4 hours ago
Delta
Wed, Apr 22 - Mon, May 11
SEA
Seattle
ORD
Chicago
₩336,700 Roundtrip, found 4 hours ago
₩336,700
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Apr 22 from Seattle to Chicago, returning Mon, May 11, priced at ₩336,700 found 4 hours ago
Delta
Wed, Apr 8 - Sat, Apr 25
SEA
Seattle
ORD
Chicago
₩336,900 Roundtrip, found 4 hours ago
₩336,900
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Apr 8 from Seattle to Chicago, returning Sat, Apr 25, priced at ₩336,900 found 4 hours ago
Delta
Thu, Apr 9 - Wed, Apr 15
SEA
Seattle
ORD
Chicago
₩351,500 Roundtrip, found 4 hours ago
₩351,500
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Apr 9 from Seattle to Chicago, returning Wed, Apr 15, priced at ₩351,500 found 4 hours ago
Alaska Airlines
Sun, Apr 12 - Sat, Apr 25
SEA
Seattle
ORD
Chicago
₩351,900 Roundtrip, found 4 hours ago
₩351,900
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sun, Apr 12 from Seattle to Chicago, returning Sat, Apr 25, priced at ₩351,900 found 4 hours ago
Delta
Thu, Apr 9 - Wed, Apr 15
SEA
Seattle
ORD
Chicago
₩352,000 Roundtrip, found 4 hours ago
₩352,000
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Apr 9 from Seattle to Chicago, returning Wed, Apr 15, priced at ₩352,000 found 4 hours ago
Delta
Tue, Mar 31 - Tue, Apr 14
SEA
Seattle
ORD
Chicago
₩366,700 Roundtrip, found 4 hours ago
₩366,700
Roundtrip
found 4 hours ago
Select Delta flight, departing Tue, Mar 31 from Seattle to Chicago, returning Tue, Apr 14, priced at ₩366,700 found 4 hours ago
United
Thu, Apr 9 - Wed, Apr 15
SEA
Seattle
ORD
Chicago
₩403,900 Roundtrip, found 4 hours ago
₩403,900
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Apr 9 from Seattle to Chicago, returning Wed, Apr 15, priced at ₩403,900 found 4 hours ago
Hawaiian Airlines
Wed, Apr 1 - Sat, Apr 18
SEA
Seattle
ORD
Chicago
₩411,200 Roundtrip, found 4 hours ago
₩411,200
Roundtrip
found 4 hours ago
Select Hawaiian Airlines flight, departing Wed, Apr 1 from Seattle to Chicago, returning Sat, Apr 18, priced at ₩411,200 found 4 hours ago
American Airlines
Thu, Apr 9 - Wed, Apr 15
SEA
Seattle
ORD
Chicago
₩418,500 Roundtrip, found 4 hours ago
₩418,500
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Thu, Apr 9 from Seattle to Chicago, returning Wed, Apr 15, priced at ₩418,500 found 4 hours ago

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 center is 23 minutes. Flights from ₩544,700
ORD
O'Hare Intl.
Cheapest
Average driving time to city center23 min
Flights from ₩544,700

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 ₩322,100. 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.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
O'Hare Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
₩322,100
Distance
2745 km
Average flight time
6 hours 5 mins

Book with confidence

Seattle to Chicago Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Seattle to Chicago will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Chicago.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with SEA to ORD flights that won’t make your bank account wince. Ready to temporarily leave behind Seattle for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to ORD with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Seattle to Chicago Flights
*Available to Expedia members.