Flights from Seattle Tacoma to Chicago

Our cheapest offers for flights from Seattle Tacoma to Chicago

Here you can compare cheap flights from Seattle Tacoma (SEA) to Chicago (CHI) 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 Chicago. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Seattle-Tacoma
Chicago
Outbound
09/19/25
direct
AS0538
04h 08min
Return
09/29/25
direct
AS0409
04h 40min
Alaska Airlines ?
$198
Seattle-Tacoma
Chicago
Pay attention to transfer at connecting flight
Outbound
04/29/25
2 Stopovers (LAS, FLL)
NK0251, NK0279, NK0001
18h 54min
Return
05/08/25
2 Stopovers (LAX, LAS)
NK2191, NK2683, NK2625
31h 11min
Spirit Airlines
$301
Seattle-Tacoma
Chicago
Outbound
04/29/25
direct
AS0890
04h 18min
Return
05/08/25
direct
AS0409
04h 41min
Alaska Airlines ?
$204
Seattle-Tacoma
Chicago
Outbound
09/19/25
direct
AS0538
04h 08min
Return
09/29/25
direct
AS0409
04h 40min
Alaska Airlines ?
$212
Seattle-Tacoma
Chicago
Outbound
09/19/25
direct
HA6819
04h 08min
Return
09/29/25
direct
HA6298
04h 40min
Hawaiian Airlines
$217
Seattle-Tacoma
Chicago
Outbound
09/19/25
direct
AS0538
04h 08min
Return
09/29/25
direct
AS0409
04h 40min
Alaska Airlines ?
$222
Seattle-Tacoma
Chicago
Outbound
04/29/25
direct
AS0328
04h 06min
Return
05/08/25
direct
AS0409
04h 41min
Alaska Airlines
$229
Seattle-Tacoma
Chicago
Outbound
07/25/25
1 Stopover (DEN)
F93406, F93174
15h 34min
Return
08/17/25
1 Stopover (DEN)
F91483, F93405
20h 54min
Frontier Airlines
$231
Seattle-Tacoma
Chicago
Outbound
07/25/25
1 Stopover (DEN)
F93406, F93174
15h 34min
Return
08/17/25
1 Stopover (DEN)
F91483, F93405
20h 54min
Frontier Airlines
$242
Seattle-Tacoma
Chicago
Outbound
07/25/25
1 Stopover (LAS)
NK2852, NK0184
08h 06min
Return
08/17/25
direct
AS0942
04h 37min
Spirit Airlines
$262
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Seattle Tacoma to Chicago

Favorite airline: Alaska Airlines
34 % of flights from Seattle-Tacoma to Chicago are booked with Alaska Airlines.
Alaska Airlines
34 %
Spirit Airlines
20 %
Delta
15 %
Cheapest weekday: Tuesday
Flight tickets are cheapest on Tuesday. Flights on these weekdays cost up to 28 % less.
Direct flights are more expensive
Direct flights on this route are $38.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
2 stops
04h 15min
15h 05min
11h 37min
179 USD
141 USD
284 USD
The favorite connection is non-stop
49 % of all bookings on the route Seattle-Tacoma to Chicago are for non-stop flights.
Route
bookings
Direct flights
04h 15min, from 179 USD
49 %
1 stopover Las Vegas - McCarran International Airport, NV
15h 05min, from 141 USD
23 %
1 stopover Portland International Airport, Oregon
07h 00min, from 184 USD
14 %

Important flight information

Flight information: Seattle-Tacoma - Chicago

Roundtrip from 197,31 USD
Flight duration min. 03:44 / max. 07:40
Return flight duration min. 04:38/ max. 07:45
Distance 2790 km
Flights per week 127
Departure airport Airport Seattle-Tacoma International Airport, WA (SEA)
Arrival airport Airport Chicago-IL all Airports (ORD, MDW, RFD) (CHI)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Chicago
Flight destinations with a similar price
Flight destinations with a similar price