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

Alaska Airlines
Delta
American Airlines
United
Frontier Airlines
JetBlue Airways
Southwest Airlines

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Cheap Flights from Seattle to Chicago (SEA-CHI)

Prices were available within the past 7 days and start at £98 for one-way flights and £205 for return, for the period specified. Prices and availability are subject to change.

All deals

One way

Return

Tue, 25 Aug - Thu, 27 Aug

SEA

Seattle

ORD

Chicago

£205

Return

Found 1 day ago

Select Alaska Airlines flight, departing Tue, 25 Aug from Seattle to Chicago, returning Thu, 27 Aug, priced at £205 Found 1 day ago

Tue, 25 Aug - Thu, 27 Aug

SEA

Seattle

ORD

Chicago

£212

Return

Found 1 day ago

Select Alaska Airlines flight, departing Tue, 25 Aug from Seattle to Chicago, returning Thu, 27 Aug, priced at £212 Found 1 day ago

Fri, 11 Sept - Wed, 16 Sept

SEA

Seattle

ORD

Chicago

£214

Return

Found 18 hours ago

Select Alaska Airlines flight, departing Fri, 11 Sept from Seattle to Chicago, returning Wed, 16 Sept, priced at £214 Found 18 hours ago

Wed, 14 Oct - Sun, 18 Oct

SEA

Seattle

ORD

Chicago

£216

Return

Found 8 hours ago

Select Alaska Airlines flight, departing Wed, 14 Oct from Seattle to Chicago, returning Sun, 18 Oct, priced at £216 Found 8 hours ago

Wed, 4 Nov - Fri, 6 Nov

SEA

Seattle

ORD

Chicago

£217

Return

Found 5 days ago

Select Alaska Airlines flight, departing Wed, 4 Nov from Seattle to Chicago, returning Fri, 6 Nov, priced at £217 Found 5 days ago

Fri, 11 Sept - Wed, 16 Sept

SEA

Seattle

ORD

Chicago

£222

Return

Found 18 hours ago

Select Alaska Airlines flight, departing Fri, 11 Sept from Seattle to Chicago, returning Wed, 16 Sept, priced at £222 Found 18 hours ago

Fri, 26 Feb - Sat, 27 Feb

SEA

Seattle

ORD

Chicago

£278

Return

Found 3 days ago

Select American Airlines flight, departing Fri, 26 Feb from Seattle to Chicago, returning Sat, 27 Feb, priced at £278 Found 3 days ago

Fri, 26 Feb - Sat, 27 Feb

SEA

Seattle

ORD

Chicago

£282

Return

Found 3 days ago

Select Delta flight, departing Fri, 26 Feb from Seattle to Chicago, returning Sat, 27 Feb, priced at £282 Found 3 days ago

Fri, 26 Feb - Sat, 27 Feb

SEA

Seattle

ORD

Chicago

£356

Return

Found 3 days ago

Select United flight, departing Fri, 26 Feb from Seattle to Chicago, returning Sat, 27 Feb, priced at £356 Found 3 days ago

Fri, 16 Oct - Mon, 19 Oct

SEA

Seattle

ORD

Chicago

£404

Return

Found 6 days ago

Select JetBlue Airways flight, departing Fri, 16 Oct from Seattle to Chicago, returning Mon, 19 Oct, priced at £404 Found 6 days ago

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

April is typically the cheapest month to fly

From £70 - £170 per traveller.

Travel information

Origin airport	Seattle-Tacoma International Airport
Destination airport	Chicago O'Hare International Airport
Distance	1,715 miles away
Airlines serving	Alaska Airlines, American Airlines, Delta, United, Frontier Airlines, JetBlue Airways, Sun Country Airlines
Popular airline	Alaska Airlines
Return price	£205
Average flight time	4 hours 49 mins

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£98 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)

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

April is typically the cheapest month to flyApril is typically the cheapest month to fly

Travel information

Explore a world of travel with Expedia

April is typically the cheapest month to fly