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, Jun 24 - Tue, Jul 8

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$169 Roundtrip, found 4 days ago

$169

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Tue, Jun 24 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Jul 8, priced at $169 found 4 days ago

Wed, Sep 24 - Wed, Sep 24

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$169 Roundtrip, found 4 days ago

$169

Roundtrip

found 4 days ago

Select Delta flight, departing Wed, Sep 24 from Seattle - Tacoma Intl. to O'Hare Intl., returning Wed, Sep 24, priced at $169 found 4 days ago

Sat, May 17 - Sun, May 25

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$174 Roundtrip, found 6 days ago

$174

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Sat, May 17 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, May 25, priced at $174 found 6 days ago

Sat, Sep 27 - Sun, Sep 28

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$193 Roundtrip, found 4 days ago

$193

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Sat, Sep 27 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, Sep 28, priced at $193 found 4 days ago

Mon, Jun 30 - Tue, Jul 8

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$199 Roundtrip, found 4 days ago

$199

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Mon, Jun 30 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Jul 8, priced at $199 found 4 days ago

Thu, Aug 21 - Tue, Aug 26

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$199 Roundtrip, found 4 days ago

$199

Roundtrip

found 4 days ago

Select United flight, departing Thu, Aug 21 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Aug 26, priced at $199 found 4 days ago

Thu, Aug 21 - Tue, Aug 26

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$199 Roundtrip, found 4 days ago

$199

Roundtrip

found 4 days ago

Select American Airlines flight, departing Thu, Aug 21 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Aug 26, priced at $199 found 4 days ago

Sun, May 18 - Sun, May 25

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$204 Roundtrip, found 6 days ago

$204

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Sun, May 18 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, May 25, priced at $204 found 6 days ago

Sat, May 17 - Mon, May 19

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$209 Roundtrip, found 6 days ago

$209

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Sat, May 17 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, May 19, priced at $209 found 6 days ago

Thu, Aug 21 - Tue, Aug 26

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$209 Roundtrip, found 4 days ago

$209

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Thu, Aug 21 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, Aug 26, priced at $209 found 4 days ago

Wed, May 14 - Sun, May 25

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$214 Roundtrip, found 6 days ago

$214

Roundtrip

found 6 days ago

Select Hawaiian Airlines flight, departing Wed, May 14 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, May 25, priced at $214 found 6 days ago

Sat, May 17 - Mon, May 19

SEA

Seattle - Tacoma Intl.

MDW

Midway Intl.

$218 Roundtrip, found 6 days ago

$218

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, May 17 from Seattle - Tacoma Intl. to Midway Intl., returning Mon, May 19, priced at $218 found 6 days ago

Sat, Sep 27 - Sun, Sep 28

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$222 Roundtrip, found 4 days ago

$222

Roundtrip

found 4 days ago

Select United flight, departing Sat, Sep 27 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, Sep 28, priced at $222 found 4 days ago

Sat, May 17 - Mon, May 19

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$226 Roundtrip, found 6 days ago

$226

Roundtrip

found 6 days ago

Select United flight, departing Sat, May 17 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, May 19, priced at $226 found 6 days ago

Sun, May 18 - Mon, May 19

SEA

Seattle - Tacoma Intl.

MDW

Midway Intl.

$228 Roundtrip, found 6 days ago

$228

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sun, May 18 from Seattle - Tacoma Intl. to Midway Intl., returning Mon, May 19, priced at $228 found 6 days ago

Thu, Sep 25 - Sun, Sep 28

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$229 Roundtrip, found 4 days ago

$229

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Thu, Sep 25 from Seattle - Tacoma Intl. to O'Hare Intl., returning Sun, Sep 28, priced at $229 found 4 days ago

Sat, May 17 - Mon, May 19

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$238 Roundtrip, found 6 days ago

$238

Roundtrip

found 6 days ago

Select American Airlines flight, departing Sat, May 17 from Seattle - Tacoma Intl. to O'Hare Intl., returning Mon, May 19, priced at $238 found 6 days ago

Thu, May 15 - Sat, May 24

SEA

Seattle - Tacoma Intl.

MDW

Midway Intl.

$238 Roundtrip, found 6 days ago

$238

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Thu, May 15 from Seattle - Tacoma Intl. to Midway Intl., returning Sat, May 24, priced at $238 found 6 days ago

Fri, May 16 - Tue, May 20

SEA

Seattle - Tacoma Intl.

ORD

O'Hare Intl.

$264 Roundtrip, found 6 days ago

$264

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Fri, May 16 from Seattle - Tacoma Intl. to O'Hare Intl., returning Tue, May 20, priced at $264 found 6 days ago

Thu, Aug 21 - Tue, Aug 26

PAE

Seattle Paine Field Intl. Airport

ORD

O'Hare Intl.

$478 Roundtrip, found 4 days ago

$478

Roundtrip

found 4 days ago

Select Alaska Airlines flight, departing Thu, Aug 21 from Seattle Paine Field Intl. Airport to O'Hare Intl., returning Tue, Aug 26, priced at $478 found 4 days ago