Flights from Chicago to North Seattle

Cheapest flights from Chicago

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.

Sat, Jul 5 - Tue, Jul 15

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$169 Roundtrip, found 5 days ago

$169

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Sat, Jul 5 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jul 15, priced at $169 found 5 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$174 Roundtrip, found 6 days ago

$174

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $174 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$174 Roundtrip, found 6 days ago

$174

Roundtrip

found 6 days ago

Select United flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $174 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$182 Roundtrip, found 6 days ago

$182

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $182 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$184 Roundtrip, found 6 days ago

$184

Roundtrip

found 6 days ago

Select United flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $184 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$195 Roundtrip, found 6 days ago

$195

Roundtrip

found 6 days ago

Select Spirit Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $195 found 6 days ago

Sat, Jul 5 - Mon, Jul 14

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$199 Roundtrip, found 5 days ago

$199

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Sat, Jul 5 from O'Hare Intl. to Seattle - Tacoma Intl., returning Mon, Jul 14, priced at $199 found 5 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$204 Roundtrip, found 6 days ago

$204

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $204 found 6 days ago

Mon, Jul 7 - Tue, Jul 15

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$209 Roundtrip, found 5 days ago

$209

Roundtrip

found 5 days ago

Select American Airlines flight, departing Mon, Jul 7 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jul 15, priced at $209 found 5 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$214 Roundtrip, found 6 days ago

$214

Roundtrip

found 6 days ago

Select Alaska Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $214 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$219 Roundtrip, found 6 days ago

$219

Roundtrip

found 6 days ago

Select American Airlines flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $219 found 6 days ago

Wed, May 28 - Tue, Jun 3

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$224 Roundtrip, found 6 days ago

$224

Roundtrip

found 6 days ago

Select United flight, departing Wed, May 28 from O'Hare Intl. to Seattle - Tacoma Intl., returning Tue, Jun 3, priced at $224 found 6 days ago

Thu, Jul 10 - Mon, Jul 14

ORD

O'Hare Intl.

SEA

Seattle - Tacoma Intl.

$229 Roundtrip, found 5 days ago

$229

Roundtrip

found 5 days ago

Select Hawaiian Airlines flight, departing Thu, Jul 10 from O'Hare Intl. to Seattle - Tacoma Intl., returning Mon, Jul 14, priced at $229 found 5 days ago

Fri, Jul 4 - Sat, Jul 12

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$328 Roundtrip, found 6 days ago

$328

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Jul 4 from Midway Intl. to Seattle - Tacoma Intl., returning Sat, Jul 12, priced at $328 found 6 days ago

Sat, Jul 5 - Sat, Jul 12

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$341 Roundtrip, found 6 days ago

$341

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Jul 5 from Midway Intl. to Seattle - Tacoma Intl., returning Sat, Jul 12, priced at $341 found 6 days ago

Fri, Jul 4 - Thu, Jul 17

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$358 Roundtrip, found 6 days ago

$358

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Fri, Jul 4 from Midway Intl. to Seattle - Tacoma Intl., returning Thu, Jul 17, priced at $358 found 6 days ago

Sat, Jul 5 - Thu, Jul 17

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$371 Roundtrip, found 6 days ago

$371

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Sat, Jul 5 from Midway Intl. to Seattle - Tacoma Intl., returning Thu, Jul 17, priced at $371 found 6 days ago

Mon, Jul 7 - Tue, Jul 15

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$413 Roundtrip, found 6 days ago

$413

Roundtrip

found 6 days ago

Select Frontier Airlines flight, departing Mon, Jul 7 from Midway Intl. to Seattle - Tacoma Intl., returning Tue, Jul 15, priced at $413 found 6 days ago

Mon, Jul 7 - Mon, Jul 14

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$437 Roundtrip, found 6 days ago

$437

Roundtrip

found 6 days ago

Select Delta flight, departing Mon, Jul 7 from Midway Intl. to Seattle - Tacoma Intl., returning Mon, Jul 14, priced at $437 found 6 days ago

Tue, Jul 8 - Thu, Jul 17

MDW

Midway Intl.

SEA

Seattle - Tacoma Intl.

$464 Roundtrip, found 6 days ago

$464

Roundtrip

found 6 days ago

Select Delta flight, departing Tue, Jul 8 from Midway Intl. to Seattle - Tacoma Intl., returning Thu, Jul 17, priced at $464 found 6 days ago