Seattle to Chicago O'Hare (SEA → ORD). We are tracking 13 fares on this route.
Cheapest tracked fare $97 · typical price $233 · you save about $136 (58%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
—
2026-10-21
1 stop
$97
—
2026-11-04
Direct
$99
—
2026-10-14
Direct
$99
—
2027-02-03
Direct
$99
—
2026-10-05
1 stop
$119
—
2026-09-30
1 stop
$125
Frontier Airlines
2026-09-28
1 stop
$135
American Airlines
2026-09-23
Direct
$138
—
2026-12-02
1 stop
$141
Frontier Airlines
2026-09-29
1 stop
$142
Alaska Airlines
2026-10-01
Direct
$153
Frontier Airlines
2026-09-27
1 stop
$159
Frontier Airlines
2026-09-13
1 stop
$161
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 O'Hare get?
The cheapest fare we have tracked on this route is $97, compared with a typical $233 for a trip of this distance.
Is it cheaper to fly to Chicago O'Hare 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 O'Hare 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.