Seattle to Chicago flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$297 is $50 (14%) below the usual $347 for Seattle → Chicago.
Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.
Not ready to book? Get an email when Seattle → Chicago drops below your price.Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| September 2026 | No fares found yet |
| October 2026 | $358 |
| November 2026 | $297 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Nov 4 – 8 4 nights · leave Wed$297 −14% vs usual$297 −14% vs usual Book
Frontier Airlines 1 stop · 5h 14m -
Nov 5 – 8 3 nights · leave Thu$344$344 Book
Frontier Airlines 1 stop · 6h 30m
-
Oct 29 – Nov 1 3 nights · leave Thu$358$358 Book
Frontier Airlines 1 stop · 6h 30m
-
Oct 9 – 12 3 nights · leave Fri$425 +22% vs usual$425 +22% vs usual Book
Frontier Airlines 1 stop · 6h 59m
-
Nov 25 – 29 4 nights · leave Wed$634 +83% vs usual$634 +83% vs usual Book
Alaska Airlines 1 stop · 4h 09m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Chicago
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Airport transfer to Chicago
Fixed prices from ORD on KiwitaxiTo see transfer prices here, turn on partner content in .
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Plan the rest of your trip
Chicago · Nov 4 – 8Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Seattle to Chicago: questions
How much is a flight from Seattle to Chicago?
The cheapest round trip we have found right now is $297, leaving November 4 and returning November 8. The usual price on this route is about $347, so this fare is 14% less. Prices are per person, economy, in USD.
About this route
We track round-trip economy fares from Seattle (United States) to Chicago (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $297, departing November 4 and returning November 8, about 14% below the usual $347. Right now we're following 5 upcoming date combinations on this route. The cheapest month to fly in our data is November, from $297. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.