$49 Find Cheap Flights from Chicago to Seattle

Flights from Chicago to Seattle

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Flights from Chicago to Seattle Starting at $49

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

One way
Round-trip

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

When is the cheapest time to fly from Chicago to Seattle?

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

Find cheap airlines 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.

Frontier Airlines

From $49

American Airlines

From $90

United Airlines

From $98

Delta Air Lines

From $99

Sun Country Airlines

From $102

Southwest Airlines

From $120

Spirit Airlines

From $139

Allegiant Air

From $183

Alaska Airlines

From $184

ANA airlines

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Alternative Cheap Routes from Chicago to Seattle

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to Seattle.

Cheapest
MDW
22:34
12h 21m
1 transfer
SEA
08:55
Midway International Airport - Seattle-Tacoma International Airport
Tue, Apr 23Frontier Airlines
$49
ORD
06:10
4h 36m
Direct
SEA
08:46
O'Hare International Airport - Seattle-Tacoma International Airport
Wed, May 1Delta Air Lines
$99
RFD
22:00
18h 12m
1 transfer
SEA
14:12
Chicago Rockford International Airport - Seattle-Tacoma International Airport
Mon, Apr 22Allegiant Air
$183
RFD
22:00
18h 12m
1 transfer
SEA
14:12
Chicago Rockford International Airport - Seattle-Tacoma International Airport
Mon, Apr 22Allegiant Air
$183
Find More Flights

Frequently Asked Questions

When are flight tickets from Chicago (CHI) to Seattle (SEA) the cheapest?
Airlines adjust prices for flights from Chicago to Seattle based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much do flights from Chicago (CHI) to Seattle (SEA) cost?
According to Trip.com's data, the lowest price is around $282.
How long does it take to fly from Chicago (CHI) to Seattle (SEA) and what is the distance?
It takes around 4 hours 37 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. It takes about 30 minutes by taxi.
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, American Airlines, United Airlines, Air Tahiti Nui, Qatar Airways, Southwest Airlines, Royal Jordanian, Austrian Airlines, Lufthansa and Malaysia Airlines.

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

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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

Save up to £10 per person when booking your flights on Trip.com

Travel Info | Chicago to Seattle

Cheapest nonstop flight price	$48
Cheapest round-trip ticket price	$91
Off-season for travel	November
Peak season for travel	July
Flight distance	2,785.86km
Average flight time	4 hours 37 minutes
Popular airline	American Airlines