$111 Cheap Flights from Chicago (CHI) to Seattle (SEA)

View $111 flight on Tue, Jul 14, 2026Opens in a new window

Popular airlines from Chicago to Seattle, WA (SEA-Seattle - Tacoma Intl.)

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Cheap Flights from Chicago to Seattle (CHI-SEA)

Prices were available within the past 7 days and start at $111 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Jun 9 - Wed, Jun 10
ORD
Chicago
SEA
Seattle
$218 Roundtrip, found 2 hours ago
$218
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Tue, Jun 9 from Chicago to Seattle, returning Wed, Jun 10, priced at $218 found 2 hours ago
Alaska Airlines
Wed, Jun 3 - Wed, Jun 10
ORD
Chicago
SEA
Seattle
$223 Roundtrip, found 2 hours ago
$223
Roundtrip
found 2 hours ago
Select Alaska Airlines flight, departing Wed, Jun 3 from Chicago to Seattle, returning Wed, Jun 10, priced at $223 found 2 hours ago
Bargain Flight
Tue, Sep 22 - Wed, Sep 30
ORD
Chicago
SEA
Seattle
$223 Roundtrip, found 7 hours ago
$223
Roundtrip
found 7 hours ago
Select Bargain Flight flight, departing Tue, Sep 22 from Chicago to Seattle, returning Wed, Sep 30, priced at $223 found 7 hours ago
Bargain Flight
Tue, Sep 15 - Tue, Sep 22
ORD
Chicago
SEA
Seattle
$223 Roundtrip, found 8 hours ago
$223
Roundtrip
found 8 hours ago
Select Bargain Flight flight, departing Tue, Sep 15 from Chicago to Seattle, returning Tue, Sep 22, priced at $223 found 8 hours ago
Bargain Flight
Tue, May 12 - Tue, May 19
ORD
Chicago
SEA
Seattle
$224 Roundtrip, just found
$224
Roundtrip
just found
Select Bargain Flight flight, departing Tue, May 12 from Chicago to Seattle, returning Tue, May 19, priced at $224 just found
American Airlines
Tue, Jun 2 - Tue, Jun 9
RFD
Rockford
SEA
Seattle
$225 Roundtrip, found 4 hours ago
$225
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Tue, Jun 2 from Rockford to Seattle, returning Tue, Jun 9, priced at $225 found 4 hours ago
Alaska Airlines
Wed, Sep 9 - Wed, Sep 9
ORD
Chicago
SEA
Seattle
$225 Roundtrip, found 17 hours ago
$225
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Wed, Sep 9 from Chicago to Seattle, returning Wed, Sep 9, priced at $225 found 17 hours ago
United
Wed, May 13 - Wed, May 20
ORD
Chicago
SEA
Seattle
$225 Roundtrip, just found
$225
Roundtrip
just found
Select United flight, departing Wed, May 13 from Chicago to Seattle, returning Wed, May 20, priced at $225 just found
Delta
Wed, May 13 - Wed, May 20
ORD
Chicago
SEA
Seattle
$225 Roundtrip, just found
$225
Roundtrip
just found
Select Delta flight, departing Wed, May 13 from Chicago to Seattle, returning Wed, May 20, priced at $225 just found
Southwest Airlines
Wed, Aug 12 - Tue, Aug 25
MDW
Chicago
SEA
Seattle
$225 Roundtrip, found 6 hours ago
$225
Roundtrip
found 6 hours ago
Select Southwest Airlines flight, departing Wed, Aug 12 from Chicago to Seattle, returning Tue, Aug 25, priced at $225 found 6 hours ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city center is 20 minutes. Flights from $290
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city center20 min
Flights from $290

Travel information

Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$217
Distance
1715 mi

*Flight schedules are subject to change.

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