
Popular airlines from Seattle-Tacoma International Airport (SEA) to Chicago
- Alaska Airlines
Alaska Airlines
- Delta
Delta
- Southwest Airlines
Southwest Airlines
- United
United
- American Airlines
American Airlines
- Frontier Airlines
Frontier Airlines
- JetBlue Airways
JetBlue Airways
- Plan, book, fly with confidence
trending down icon Be in the knowGet alerts if flight prices drop or rise*bex rewards loyalty icon Book smarterSave up to 40% on select hotels after you book a flight*payments icon
Cheap Flights from Seattle (SEA) to Chicago (CHI)
Prices were available within the past 7 days and start at ฿2,930 for one-way flights and ฿6,180 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 23 Sep - Tue, 30 Sep
SEA
Seattle
ORD
Chicago
฿6,180 Return, found 3 days ago
฿6,180
Return
found 3 days ago

Fri, 12 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿7,155 Return, found 2 days ago
฿7,155
Return
found 2 days ago

Sun, 14 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿7,290 Return, found 2 days ago
฿7,290
Return
found 2 days ago

Tue, 23 Sep - Tue, 30 Sep
SEA
Seattle
ORD
Chicago
฿7,655 Return, found 3 days ago
฿7,655
Return
found 3 days ago

Tue, 23 Sep - Tue, 30 Sep
SEA
Seattle
ORD
Chicago
฿7,825 Return, found 3 days ago
฿7,825
Return
found 3 days ago

Tue, 30 Sep - Thu, 2 Oct
SEA
Seattle
ORD
Chicago
฿7,845 Return, found 3 days ago
฿7,845
Return
found 3 days ago

Fri, 12 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿8,270 Return, found 2 days ago
฿8,270
Return
found 2 days ago

Sat, 13 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿8,340 Return, found 3 days ago
฿8,340
Return
found 3 days ago

Sat, 13 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿8,510 Return, found 3 days ago
฿8,510
Return
found 3 days ago

Fri, 12 Sep - Sat, 20 Sep
SEA
Seattle
ORD
Chicago
฿8,630 Return, found 2 days ago
฿8,630
Return
found 2 days ago
Find the cheapest month to fly from Seattle (SEA) to Chicago (CHI)
November is typically the cheapest month to fly
From ฿3,409 - ฿10,610 per traveller.
Graph displaying average flight prices per month
Origin airport | Seattle - Tacoma Intl. |
Destination airport | O'Hare Intl. |
Return price | ฿6,180 |
Distance | 2745 km |
Perfect flights from Seattle to Chicago
Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Chicago. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
Our flexible Seattle - Tacoma Intl. to CHI-All Airports ticket options cater to your travel preferences, with incredible one-way fares from ฿2,930 and roundtrip prices from ฿6,180. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at CHI-All Airports and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Chicago.
Explore a world of travel with Expedia
- Trending Routes
- Trending Flights
- Top Flights Destinations
- Related Airlines
- Nearby Airports
- Cheap Flights from Other Airports
Top Routes from Seattle
Top Routes to Chicago
Top Routes from Seattle
Top Flight Destinations
- Flights to Las Vegas
- Flights to New York
- Flights to Orlando
- Flights to Chicago
- Flights to San Diego
- Flights to Myrtle Beach
- Flights to Los Angeles
- Flights to Ocean City
- Flights to San Francisco
- Flights to Miami
- Flights to Nashville
- Flights to Honolulu
- Flights to Houston
- Flights to Atlanta
- Flights to Seattle
- Flights to Virginia Beach
- Flights to San Antonio
Chicago Airports
Chicago
฿6,180.00
Seattle Airports
Seattle Paine Field Intl. Airport
Nearby Airports
*Available to Expedia members.