Flights from Seattle to Chicago

Cheapest flights from Seattle

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Aug 5 - Tue, Aug 19

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$109 Roundtrip, found 18 hours ago

$109

Roundtrip

found 18 hours ago

Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Aug 19, priced at $109 found 18 hours ago

Tue, Aug 5 - Wed, Aug 20

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$119 Roundtrip, found 18 hours ago

$119

Roundtrip

found 18 hours ago

Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to O'Hare Intl., returning Wed, Aug 20, priced at $119 found 18 hours ago

Tue, Aug 5 - Mon, Aug 18

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$125 Roundtrip, found 18 hours ago

$125

Roundtrip

found 18 hours ago

Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, Aug 18, priced at $125 found 18 hours ago

Tue, Aug 5 - Fri, Aug 15

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$133 Roundtrip, found 18 hours ago

$133

Roundtrip

found 18 hours ago

Select Delta flight, departing Tue, Aug 5 from Seattle - Tacoma Intl. to O'Hare Intl., returning Fri, Aug 15, priced at $133 found 18 hours ago

Mon, Aug 11 - Wed, Aug 20

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$135 Roundtrip, found 18 hours ago

$135

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Aug 11 from Seattle - Tacoma Intl. to O'Hare Intl., returning Wed, Aug 20, priced at $135 found 18 hours ago

Mon, Aug 11 - Mon, Aug 18

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$141 Roundtrip, found 18 hours ago

$141

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Aug 11 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, Aug 18, priced at $141 found 18 hours ago

Mon, Aug 11 - Fri, Aug 15

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$149 Roundtrip, found 18 hours ago

$149

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Aug 11 from Seattle - Tacoma Intl. to O'Hare Intl., returning Fri, Aug 15, priced at $149 found 18 hours ago

Wed, Aug 6 - Sat, Aug 16

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$157 Roundtrip, found 18 hours ago

$157

Roundtrip

found 18 hours ago

Select Alaska Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sat, Aug 16, priced at $157 found 18 hours ago

Wed, Aug 6 - Sun, Aug 17

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$173 Roundtrip, found 18 hours ago

$173

Roundtrip

found 18 hours ago

Select Hawaiian Airlines flight, departing Wed, Aug 6 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, Aug 17, priced at $173 found 18 hours ago

Fri, Aug 8 - Sat, Aug 9

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$173 Roundtrip, found 5 days ago

$173

Roundtrip

found 5 days ago

Select United flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $173 found 5 days ago

Fri, Aug 8 - Mon, Aug 11

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$173 Roundtrip, found 5 days ago

$173

Roundtrip

found 5 days ago

Select American Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, Aug 11, priced at $173 found 5 days ago

Fri, Aug 8 - Sat, Aug 9

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$175 Roundtrip, found 5 days ago

$175

Roundtrip

found 5 days ago

Select Alaska Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $175 found 5 days ago

Thu, Aug 7 - Tue, Aug 19

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$179 Roundtrip, found 18 hours ago

$179

Roundtrip

found 18 hours ago

Select Alaska Airlines flight, departing Thu, Aug 7 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Aug 19, priced at $179 found 18 hours ago

Fri, Aug 8 - Mon, Aug 18

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$182 Roundtrip, found 18 hours ago

$182

Roundtrip

found 18 hours ago

Select Spirit Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, Aug 18, priced at $182 found 18 hours ago

Tue, Jul 22 - Thu, Jul 31

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$183 Roundtrip, found 21 hours ago

$183

Roundtrip

found 21 hours ago

Select Delta flight, departing Tue, Jul 22 from Seattle - Tacoma Intl. to O'Hare Intl., returning Thu, Jul 31, priced at $183 found 21 hours ago

Mon, Aug 11 - Sat, Aug 16

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$186 Roundtrip, found 18 hours ago

$186

Roundtrip

found 18 hours ago

Select Delta flight, departing Mon, Aug 11 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sat, Aug 16, priced at $186 found 18 hours ago

Wed, Jul 23 - Tue, Jul 29

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$218 Roundtrip, found 21 hours ago

$218

Roundtrip

found 21 hours ago

Select Spirit Airlines flight, departing Wed, Jul 23 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Jul 29, priced at $218 found 21 hours ago

Fri, Aug 8 - Sat, Aug 9

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$280 Roundtrip, found 5 days ago

$280

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sat, Aug 9, priced at $280 found 5 days ago

Fri, Aug 8 - Mon, Aug 11

PAE

Seattle Paine Field Intl. Airport

ORD

O'Hare Intl.

$290 Roundtrip, found 5 days ago

$290

Roundtrip

found 5 days ago

Select Frontier Airlines flight, departing Fri, Aug 8 from Seattle Paine Field Intl. Airport to O'Hare Intl., returning Mon, Aug 11, priced at $290 found 5 days ago

Fri, Aug 8 - Mon, Aug 18

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$358 Roundtrip, found 18 hours ago

$358

Roundtrip

found 18 hours ago

Select Sun Country Airlines flight, departing Fri, Aug 8 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, Aug 18, priced at $358 found 18 hours ago