Chicago to Denver flights
Round trip · Economy · Prices per person in USD
Prices updated
Prices are low right now
$141 is $32 (18%) below the usual $173 for Chicago → Denver.
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 Chicago → Denver 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 | $141 (cheapest month) |
| November 2026 | $155 |
| December 2026 | No fares found yet |
| January 2027 | $170 |
Cheapest dates in the next 4 months
Round trip, per person-
Oct 28 – 31 3 nights · leave Wed$141 −18% vs usual$141 −18% vs usual Book
Frontier Airlines Nonstop · 2h 56m -
Nov 6 – 8 2 nights · leave Fri$155 −10% vs usual$155 −10% vs usual Book
Frontier Airlines Nonstop · 2h 56m
-
Oct 29 – Nov 1 3 nights · leave Thu$178$178 Book
Frontier Airlines Nonstop · 2h 56m
-
Nov 26 – 29 3 nights · leave Thu$257 +49% vs usual$257 +49% vs usual Book
Frontier Airlines Nonstop · 2h 56m
-
Nov 29 – Dec 6 7 nights · leave Sun$291 +68% vs usual$291 +68% vs usual Book
Frontier Airlines 1 stop · 6h 10m
-
Nov 25 – 29 4 nights · leave Wed$321 +86% vs usual$321 +86% vs usual Book
Frontier Airlines 1 stop · 5h 51m
-
Oct 2 – 5 3 nights · leave Fri$357 +106% vs usual$357 +106% vs usual Book
Frontier Airlines Nonstop · 2h 45m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Plan the rest of your trip
Denver · Oct 28 – 31Travel insurance · EKTA Airport transfer · Kiwitaxi
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Good to know
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Flights to Denver from other cities
All flights to Denver Flying the other way? Denver to Chicago from $186
Chicago to Denver: questions
How much is a flight from Chicago to Denver?
The cheapest round trip we have found right now is $141, leaving October 28 and returning October 31. The usual price on this route is about $173, so this fare is 18% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Chicago to Denver?
October 2026, with round trips from $141. The most expensive month in our data is January (from $170). Based on the 3 months ahead we have prices for.
About this route
We track round-trip economy fares from Chicago (United States) to Denver (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $141, departing October 28 and returning October 31 on a nonstop flight, about 18% below the usual $173. Right now we're following 7 upcoming date combinations on this route. The cheapest month to fly in our data is October, from $141. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.