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Flights from Seattle-Tacoma International Airport (SEA) to Chicago, IL (CHI-All Airports)
Flights to Illinois
United States of America
Flights
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Popular airlines from Seattle-Tacoma International Airport (SEA) to Chicago

Alaska Airlines
Delta
Frontier Airlines
American Airlines
United
Southwest Airlines
Sun Country Airlines

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Cheap Flights from Seattle to Chicago (SEA-CHI)

Prices were available within the past 7 days and start at CA $225 for one-way flights and CA $439 for roundtrip, for the period specified. Prices and availability are subject to change.

All deals

One way

Roundtrip

Mon, Nov 16 - Tue, Nov 17

SEA

Seattle

ORD

Chicago

CA $439

Roundtrip

Found 6 days ago

Select Alaska Airlines flight, departing Mon, Nov 16 from Seattle to Chicago, returning Tue, Nov 17, priced at CA $439 Found 6 days ago

Sat, Dec 5 - Sat, Dec 5

SEA

Seattle

ORD

Chicago

CA $440

Roundtrip

Found 2 days ago

Select Alaska Airlines flight, departing Sat, Dec 5 from Seattle to Chicago, returning Sat, Dec 5, priced at CA $440 Found 2 days ago

Thu, Oct 22 - Thu, Oct 22

SEA

Seattle

ORD

Chicago

CA $441

Roundtrip

Found 1 day ago

Select Delta flight, departing Thu, Oct 22 from Seattle to Chicago, returning Thu, Oct 22, priced at CA $441 Found 1 day ago

Thu, Dec 17 - Tue, Dec 22

SEA

Seattle

ORD

Chicago

CA $446

Roundtrip

Found 6 days ago

Select Delta flight, departing Thu, Dec 17 from Seattle to Chicago, returning Tue, Dec 22, priced at CA $446 Found 6 days ago

Thu, Dec 17 - Tue, Dec 22

SEA

Seattle

ORD

Chicago

CA $447

Roundtrip

Found 6 days ago

Select American Airlines flight, departing Thu, Dec 17 from Seattle to Chicago, returning Tue, Dec 22, priced at CA $447 Found 6 days ago

Thu, Dec 3 - Tue, Dec 8

SEA

Seattle

ORD

Chicago

CA $449

Roundtrip

Found 20 hours ago

Select American Airlines flight, departing Thu, Dec 3 from Seattle to Chicago, returning Tue, Dec 8, priced at CA $449 Found 20 hours ago

Thu, Dec 24 - Thu, Dec 31

SEA

Seattle

ORD

Chicago

CA $450

Roundtrip

Found 2 days ago

Select United flight, departing Thu, Dec 24 from Seattle to Chicago, returning Thu, Dec 31, priced at CA $450 Found 2 days ago

Thu, Dec 3 - Tue, Dec 8

SEA

Seattle

ORD

Chicago

CA $450

Roundtrip

Found 20 hours ago

Select Alaska Airlines flight, departing Thu, Dec 3 from Seattle to Chicago, returning Tue, Dec 8, priced at CA $450 Found 20 hours ago

Sat, Oct 31 - Sat, Nov 7

SEA

Seattle

ORD

Chicago

CA $453

Roundtrip

Found 6 days ago

Select Alaska Airlines flight, departing Sat, Oct 31 from Seattle to Chicago, returning Sat, Nov 7, priced at CA $453 Found 6 days ago

Thu, Oct 22 - Mon, Oct 26

SEA

Seattle

MDW

Chicago

CA $474

Roundtrip

Found 6 days ago

Select Southwest Airlines flight, departing Thu, Oct 22 from Seattle to Chicago, returning Mon, Oct 26, priced at CA $474 Found 6 days 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 centre is 23 minutes. Flights from CA $584

ORD

O'Hare Intl.

Cheapest

23 min

Flights from CA $584

Select flight to Midway Intl. MDW. Closest option available. Average driving time to city centre is 16 minutes. Flights from CA $773

MDW

Midway Intl.

Closest

16 min

Flights from CA $773

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

October is typically the cheapest month to fly

From CA $272 - CA $536 per traveller.

Travel information

Origin airport	Seattle-Tacoma International Airport
Destination airport	Chicago, IL
Distance	2,738 km away
Roundtrip price	CA $439

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Flights from Punta Cana (PUJ) to Chicago (CHI)
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Flights from Berlin (BER) to Chicago (CHI)
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Flights from Debrecen (DEB) to Chicago (CHI)
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Flights from Halifax (YHZ) to Chicago (CHI)
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Flights from Trois-Rivieres (YRQ) to Chicago (CHI)
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Flights from Laval (LVA) to Chicago (CHI)
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Flights from Victoria (YYJ) to Chicago (CHI)
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Flights from Fort Frances (YAG) to Chicago (CHI)
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Flights from Montreal (YMQ) to Chicago (CHI)
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Flights from Chatham (XCM) to Chicago (CHI)
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Flights from Poughkeepsie (POU) to Chicago (CHI)
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Flights from Singapore (SIN) to Chicago (CHI)
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Flights from Traverse City (TVC) to Chicago (CHI)
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Flights from St. Louis (STL) to Chicago (CHI)
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Flights from Hyderabad (HYD) to Chicago (CHI)
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Flights from Los Angeles (LAX) to Chicago (CHI)
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Flights from Niagara Falls (IAG) to Chicago (CHI)
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Flights from Cambridge (CGE) to Chicago (CHI)
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Flights from Benton Harbor (BEH) to Chicago (CHI)
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Flights from Montreal (YUL) to Chicago (ORD)
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Flights from Detroit (DTT) to Chicago (CHI)
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Flights from Pittsburgh (PIT) to Chicago (CHI)
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Flights from Whitby (NCA) to Chicago (CHI)
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Flights from San Antonio (SAT) to Chicago (CHI)
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Flights from Sept-Iles (YZV) to Chicago (CHI)
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Flights from Syracuse (SYR) to Chicago (CHI)
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Flights from Chennai (MAA) to Chicago (CHI)
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Flights from Edmonton (YEA) to Chicago (CHI)
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Flights from Kamloops (YKA) to Chicago (CHI)
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Flights from Blaine (BWS) to Chicago (CHI)
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Flights from Prince Albert (YPA) to Chicago (CHI)
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Flights from Boise (BOI) to Chicago (CHI)
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Flights from Beirut (BEY) to Chicago (CHI)
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Flights from Gary (GYY) to Chicago (CHI)
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Flights from Fredericton (YFC) to Chicago (CHI)
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Flights from Myrtle Beach (MYR) to Chicago (CHI)
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Flights from Brampton Island (BMP) to Chicago (CHI)
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Flights from San Diego (SAN) to Chicago (CHI)
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Flights from Oshawa (YOO) to Chicago (CHI)
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Flights from Montreal (YUL) to Chicago (CHI)
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Flights from Terrace (YXT) to Chicago (CHI)
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Flights from Moncton (YQM) to Chicago (CHI)
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Flights from New Orleans (MSY) to Chicago (CHI)
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Flights from Peoria (PIA) to Chicago (CHI)
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Flights from Toronto (YYZ) to Chicago (CHI)
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Flights from Ottawa (YOW) to Chicago (CHI)
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Flights from Manhattan (MHK) to Chicago (CHI)
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Flights from Whitehorse (YXY) to Chicago (CHI)
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Flights from Kitchener (YKF) to Chicago (CHI)
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Flights from New York (JFK) to Chicago (CHI)
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Flights from Cincinnati (CVG) to Chicago (CHI)
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Flights from Calgary (YYC) to Chicago (ORD)
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Flights from Boston (BOS) to Chicago (CHI)
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Flights from Detroit (DTW) to Chicago (ORD)
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Flights from Tampa (TPA) to Chicago (CHI)
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Flights from Carlsbad (CNM) to Chicago (CHI)
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Flights from Buffalo (BUF) to Chicago (CHI)
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Flights from Ottawa (YOW) to Chicago (ORD)
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CA $225 Cheap Flights from Seattle (SEA) to Chicago (CHI)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Chicago

Be in the know

Book smarter

Earn twice

Cheap Flights from Seattle to Chicago (SEA-CHI)

Alternative airports near Chicago

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

October is typically the cheapest month to flyOctober is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

October is typically the cheapest month to fly