S$ 72 Cheap Flights from Chicago to Seattle (CHI-SEA)

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Cheap Flights from Chicago to Seattle

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Cheap Flights from Chicago to Seattle starting at S$ 72

Book one-way or return flights from Chicago to Seattle from as little as S$ 72. Choose from the popular airlines below and book your flight today!

One way
Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Searching for the best last minute flight from Chicago to Seattle? Find one-way or return flights that are affordable and fit your itinerary.

Trip.com monitors the ticket fares of flights from Chicago to Seattle. Stay updated on price trends and snag the best deals for your upcoming trip.

Displayed prices are calculated based on the lowest average weekly prices of the corresponding route on Trip.com.

Cheapest Airlines flying from Chicago to Seattle

View airlines operating flights from Chicago to Seattle. Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines

From S$ 140

Frontier Airlines

From S$ 160

Southwest Airlines

From S$ 163

Sun Country Airlines

From S$ 166

Allegiant Air

From S$ 197

American Airlines

From S$ 250

Jetblue Airways

From S$ 291

Spirit Airlines

From S$ 293

United Airlines

From S$ 304

Delta Air Lines

From S$ 384

ANA airlines

Find more flights and airlines

Alternative Routes from Chicago to Seattle

Discover different routes, airlines, and transfers and find the best alternative flights for your journey from Chicago to Seattle.

Cheapest
MDW
05:30
16h 17m
1 transfer
SEA
19:47
Midway International Airport - Seattle-Tacoma International Airport
Wed, May 1Frontier Airlines
S$ 160
RFD
21:54
13h 26m
1 transfer
SEA
09:20
Chicago Rockford International Airport - Seattle-Tacoma International Airport
Fri, May 3Allegiant Air
S$ 197
ORD
06:10
4h 36m
Direct
SEA
08:46
O'Hare International Airport - Seattle-Tacoma International Airport
Wed, May 1Delta Air Lines
S$ 384
ORD
06:10
4h 36m
Direct
SEA
08:46
O'Hare International Airport - Seattle-Tacoma International Airport
Wed, May 1Delta Air Lines
S$ 384
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Frequently Asked Questions

When to buy flight tickets from Chicago (CHI) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Chicago to Seattle based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much is a flight from Chicago (CHI) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around S$ 380.
How long is a flight from Chicago (CHI) to Seattle (SEA)?
It takes about 4 hours 41 minutes to fly from Chicago (CHI) to Seattle (SEA).
What is the transportation method from the main airport to downtown in Seattle?
- The distance from Seattle-Tacoma International Airport to downtown is about 17km, by taxi about 30 minutes.
What time does the earliest flight from Chicago to Seattle depart?
The earliest flight departs from Chicago (ORD) at 07:40 and arrives in Seattle (SEA) at 10:28.
What time does the latest flight from Chicago to Seattle depart?
The latest flight departs from Chicago (ORD) at 20:07 and arrives in Seattle (SEA) at 22:57.
What are the most popular airlines that fly from Chicago (CHI) to Seattle (SEA)?
Airlines with flights from Chicago (CHI) to Seattle (SEA): Alaska Airlines, Air Tahiti Nui, American Airlines, United Airlines, Qatar Airways, Southwest Airlines, Royal Jordanian, Austrian Airlines, Lufthansa, Malaysia Airlines, Swiss Airlines, Turkish Airlines and Brussels Airlines.
What's the most popular airline for direct flights from Chicago (CHI) to Seattle (SEA)?
Delta Air Lines operates 1 direct flights from Chicago (CHI) to Seattle (SEA).
How many airports in Seattle?
There are 3 airports near Seattle: Seattle-Tacoma International Airport, King County (Boeing Field) International Airport and Lake Union Sea Plane Base.

How to find a cheap flight from Chicago to Seattle

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Chicago to Seattle. Book your flights at the right time and save more.

Book Early

Once prices are gone, they're gone. Lock in deals while you can!

Compare Flight Prices

Compare prices on travel agency and airline websites.

Look Out for Deals

Check airline and travel agency websites for latest flight deals

Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

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Flight Information from Chicago to Seattle

Cheapest direct flight price	S$ 72
Cheapest return ticket price	S$ 124
Cheapest month	December
Peak season for travel	October
Flight distance	2,785.86km
Average flight time	4 hours 41 minutes
Popular airline	American Airlines