Flight Routes from Chicago to Seattle Tacoma

Trip type

Our cheapest offers for flights from Chicago to Seattle Tacoma

Here you can compare cheap flights from Chicago (CHI) to Seattle Tacoma (SEA) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Seattle Tacoma. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AS0329
04h 47min
Return
06/30/26
direct
AS0328
04h 06min
Alaska Airlines ?
$354
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AS0329
04h 47min
Return
06/30/26
direct
AS0328
04h 06min
Alaska Airlines
$365
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AS0329
04h 47min
Return
06/30/26
direct
AS0328
04h 06min
Alaska Airlines
$371
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AA2523
04h 32min
Return
06/30/26
direct
AS0328
04h 06min
American Airlines ?
$378
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AS0329
04h 47min
Return
06/30/26
direct
AS0578
04h 06min
Alaska Airlines
$387
Chicago
Seattle-Tacoma
Outbound
06/25/26
1 Stopover (MSP)
SY0262, SY0289
28h 02min
Return
06/30/26
1 Stopover (DEN)
F91176, F93174
14h 23min
Sun Country Airlines ?
$414
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AS0329
04h 47min
Return
06/30/26
direct
AS0328
04h 06min
Alaska Airlines ?
$439
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AA2523
04h 32min
Return
06/30/26
direct
AA2524
04h 34min
American Airlines
$477
Chicago
Seattle-Tacoma
Outbound
06/25/26
direct
AA2523
04h 32min
Return
06/30/26
direct
AA2524
04h 34min
American Airlines ?
$554
Chicago
Seattle-Tacoma
Outbound
06/25/26
1 Stopover (PHX)
AA0769, AA3440
09h 38min
Return
06/30/26
direct
AA2523
04h 27min
American Airlines ?
$3,002
Prices based on recent searches, subject to last-minute changes
Page 1 / 1

Tips and tricks to help you find cheap flights from Chicago to Seattle Tacoma

Favorite airline: Alaska Airlines
Alaska Airlines is the most popular airline for flights from Chicago to Seattle-Tacoma.
Alaska Airlines
33 %
United Airlines
19 %
Delta
16 %
Direct flights are the cheapest connection
Flights with a stopover are on average $20.00 more expensive than direct flights.
non stop flight
1 stop
04h 41min
07h 46min
$119
$139
The favorite connection is non-stop
51 % of all bookings on the route Chicago to Seattle-Tacoma are for non-stop flights.
Route
bookings
Direct flights
04h 41min, from $119
51 %
1 stopover Las Vegas - McCarran International Airport, NV
14h 38min, from $200
14 %
1 stopover Minneapolis - St. Paul International Airport, MN
13h 57min, from $329
11 %

Important flight information

Flight information: Chicago - Seattle-Tacoma

Roundtrip from $353.80
Flight duration min. 04:38 / max. 07:45
Return flight duration min. 03:44/ max. 07:40
Distance 2790 km
Flights per week 122
Departure airport Airport Chicago-IL, all airports (CHI)
Arrival airport Airport Seattle-Tacoma International Airport, WA (SEA)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Seattle-Tacoma
Flight destinations with a similar price
Flight destinations with a similar price