Cheap Flights from Seattle to Chicago
Browse current best options from Seattle. Become a member to unlock all deals and get alerts when new deals appear.
Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Chicago
Prices updated 7 days ago
483 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Oct 26, 2026.)
Today’s best flight deals from Seattle to Chicago
Explore current cheapest deals departing from Seattle to Chicago
2027-02-17 – 2027-02-24
SEA - Chicago
70% AI deal score
$208
$181
Round trip
2027-02-03 – 2027-02-24
SEA - Chicago
50% AI deal score
$186
$196
Round trip
2027-02-10 – 2027-02-24
SEA - Chicago
65% AI deal score
$193
$198
Round trip
2027-02-01 – 2027-02-24
SEA - Chicago
49% AI deal score
$185
$208
Round trip
2026-11-18 – 2026-12-03
SEA - Chicago
48% AI deal score
$186
$225
Round trip
2026-11-21 – 2026-12-03
SEA - Chicago
49% AI deal score
$190
$225
Round trip
2026-11-18 – 2026-12-12
SEA - Chicago
48% AI deal score
$180
$229
Round trip
2026-11-18 – 2026-12-14
SEA - Chicago
48% AI deal score
$180
$229
Round trip
2026-11-18 – 2026-12-07
SEA - Chicago
48% AI deal score
$181
$231
Round trip
2026-11-18 – 2026-12-09
SEA - Chicago
48% AI deal score
$180
$231
Round trip