Cheap flights from Seattle to Chicago (All Airports)
Seattle to Chicago (All Airports) (SEA → CHI). We are tracking 13 fares on this route.
Cheapest tracked fare $84 · typical price $165 · you save about $81 (49%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Frontier
2026-12-07
1 stop
$84
Frontier
2027-01-04
1 stop
$94
Frontier
2026-11-16
1 stop
$97
Frontier
2026-10-19
1 stop
$97
Delta
2026-10-26
Direct
$99
Delta
2026-11-09
Direct
$99
Delta
2026-11-23
Direct
$99
Frontier
2026-11-30
1 stop
$103
Frontier
2026-12-14
1 stop
$104
—
2026-10-30
1 stop
$107
Frontier
2026-11-02
1 stop
$108
—
2027-01-01
Direct
$152
United
2026-12-21
Direct
$159
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Seattle to Chicago (All Airports) get?
The cheapest fare we have tracked on this route is $84, compared with a typical $165 for a trip of this distance.
Is it cheaper to fly to Chicago (All Airports) from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Seattle to Chicago (All Airports) cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.