Statistics on Chicago-Denver flights: what is the right price and when to buy your plane ticket?
Best time to go: what is the RIGHT price for a round-trip flight to Denver (from: Chicago)
The average price to go to Denver from Chicago airport is $ 198 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 142 (in january) and $ 285 (in march), which is a saving of $ 57 or a surplus of $ 87 (compared to the average price) depending on the period you leave.
The analysis of all the prices reveals that the most frequent price is between $56 to $111 and that it is generally more economical to leave on a tuesday and return on a tuesday on a direct flight.
Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to Denver before booking your flight.
If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your Chicago-Denver plane ticket.
How are these data calculated?
We have studied a sample of 60000 airfare prices from previous years for flights to Denver from Chicago and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.
Average price depending on the departure month
Data analysis:
By leaving in january, the price of the plane ticket will statistically be the cheapest ($ 142, saving $ 57 compared to the average price over the year which is $ 198). Conversely, march will be the most expensive ($ 285).
Flight Chicago-Denver: when is the best time to go for the best price?
| Month | Good price* | Average price | Our opinion |
|---|---|---|---|
| January | $ 97 | $ 142 the cheapest | very good price |
| February | $ 102 | $ 164 | good price |
| March | $ 162 | $ 285 the most expensive | very high price |
| April | $ 132 | $ 224 | fair price |
| May | $ 138 | $ 194 | fair price |
| June | $ 174 | $ 234 | fair price |
| July | $ 177 | $ 230 | fair price |
| August | $ 129 | $ 199 | fair price |
| September | $ 93 | $ 170 | good price |
| October | $ 102 | $ 152 | good price |
| November | $ 119 | $ 182 | good price |
| December | $ 131 | $ 197 | fair price |
*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!
Price breakdown to travel from Chicago to Denver
Data analysis:
The prices for flights from Chicago to Denver range from $0 to $553. 2% of tickets were purchased at the minimum price (from $0 to $56), 1% at the maximum price (from $498 to $553). The majority of plane tickets were purchased in the range of $56 to $111 (28% of tickets).
Cheapest airlines for the Chicago->Denver flight
There are 5 companies that serve Chicago from Denver airport: Frontier Airlines, United, American Airlines, Sun Country and Spirit Airlines.
Data analysis:
Of the 60000 flights analyzed in previous years, Frontier Airlines was the airline that offered the best fare most often in the flight ticket search results (78% of the time) on the Chicago->Denver route.
Direct flight or flight with layover?
Data analysis:
To get the best price for the Chicago-Denver flight, you should take a direct flight (saving an average of $ 162 compared to a flight with one or more layovers).
Which day of the week to leave?
Data analysis:
Statistically, Chicago-Denver flights departing on a tuesday are cheaper than on other days of the week. By choosing a tuesday as your departure date, you can save an average of $27. On the other hand, departing on a sunday may cost you an additional $35.
Which day of the week to come back?
Data analysis:
Statistically, return flights from Denver to Chicago departing on a tuesday are cheaper than on other days of the week. By choosing a tuesday for your return date, you will save an average of $34. Conversely, departing from Denver on a sunday may cost you an additional $30.
Top prices Chicago-Denver
| Round trip | Dates | Price | |
|---|---|---|---|
| Chicago → Denver | 19-04 to 25-04-2025 | $ 102 | direct flight with Frontier Airlines |
| Chicago → Denver | 05-05 to 09-05-2025 | $ 105 | direct flight with Frontier Airlines |
| Chicago → Denver | 08-05 to 12-05-2025 | $ 88 | direct flight with Frontier Airlines |
| Chicago → Denver | 01-06 to 07-06-2025 | $ 104 | direct flight with Frontier Airlines |
| Chicago → Denver | 02-06 to 07-06-2025 | $ 76 | direct flight with Frontier Airlines |
| Chicago → Denver | 04-06 to 11-06-2025 | $ 80 | direct flight with Frontier Airlines |
| Chicago → Denver | 05-06 to 09-06-2025 | $ 91 | direct flight with Frontier Airlines |
| Chicago → Denver | 07-06 to 11-06-2025 | $ 81 | direct flight with Frontier Airlines |
| Chicago → Denver | 17-06 to 21-06-2025 | $ 102 | direct flight with Frontier Airlines |
| Chicago → Denver | 18-06 to 25-06-2025 | $ 113 | direct flight with Frontier Airlines |
When to book your flight Chicago - Denver to get the cheapest price?
Statistically, you will make the biggest savings by buying your plane ticket between 1 to 2 months in advance. However, you may end up paying a high price if you book between 10 to 11 months in advance.
Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a Chicago-Denver flight, it is recommended to book your ticket on a saturday.
How far in advance should I buy my flight?
Data analysis:
To get the cheapest flight ticket from Chicago to Denver, it is recommended to buy it 1 to 2 months before departure (it is then on average 123 $, which is a saving of 75 $ compared to the overall average price). On the other hand, if you buy your ticket 10 to 11 months in advance, you will pay the full price (214 $ more than the average price).
Depending on the departure month
The best time to buy your Chicago to Denver flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.
| Departure on... | How far in advance should I book? |
|---|---|
| January | Best time: 1 to 2 months before departure (average price: 92 $) Other interesting period(s): 2 to 3 months ($ 110) |
| February | Best time: 1 to 2 months before departure (average price: 94 $) Other interesting period(s): 0 to 1 month ($ 150), 2 to 3 months ($ 105), 3 to 4 months ($ 142) |
| March | Best time: 1 to 2 months before departure (average price: 154 $) Other interesting period(s): 0 to 1 month ($ 204), 2 to 3 months ($ 172), 3 to 4 months ($ 249) |
| April | Best time: 1 to 2 months before departure (average price: 136 $) Other interesting period(s): 0 to 1 month ($ 139), 2 to 3 months ($ 144), 3 to 4 months ($ 196) |
| May | Best time: 1 to 2 months before departure (average price: 133 $) Other interesting period(s): 0 to 1 month ($ 166), 2 to 3 months ($ 161), 3 to 4 months ($ 180), 4 to 5 months ($ 192) |
| June | Best time: 1 to 2 months before departure (average price: 164 $) Other interesting period(s): 0 to 1 month ($ 209), 2 to 3 months ($ 181), 3 to 4 months ($ 194), 4 to 5 months ($ 219) |
| July | Best time: 1 to 2 months before departure (average price: 157 $) Other interesting period(s): 0 to 1 month ($ 222), 2 to 3 months ($ 202), 3 to 4 months ($ 197), 4 to 5 months ($ 197), 5 to 6 months ($ 227) |
| August | Best time: 1 to 2 months before departure (average price: 124 $) Other interesting period(s): 0 to 1 month ($ 168), 2 to 3 months ($ 128), 3 to 4 months ($ 178) |
| September | Best time: 1 to 2 months before departure (average price: 87 $) Other interesting period(s): 2 to 3 months ($ 92), 3 to 4 months ($ 134), 4 to 5 months ($ 163) |
| October | Best time: 2 to 3 months before departure (average price: 100 $) Other interesting period(s): 0 to 1 month ($ 149), 1 to 2 months ($ 103), 3 to 4 months ($ 103), 4 to 5 months ($ 152) |
| November | Best time: 1 to 2 months before departure (average price: 124 $) Other interesting period(s): 0 to 1 month ($ 165), 2 to 3 months ($ 157) |
| December | Best time: 1 to 2 months before departure (average price: 125 $) Other interesting period(s): 0 to 1 month ($ 191), 2 to 3 months ($ 166) |
What day of the week should I book my flight ticket?
Data analysis:
Statistically, saturday is the day when plane tickets for Chicago->Denver are the cheapest. So, by buying your plane ticket on a saturday, you will save $6. Conversely, by buying it on a sunday, you may end up paying $5 more.
Chicago to Denver: flight price when booking today
Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.
| Month | Current price | Our opinion | |
|---|---|---|---|
| April 2025 | $ 164 $102 to $214 | very good price | Find a flight |
| May 2025 | $ 160 $88 to $344 | very good price | Find a flight |
| June 2025 | $ 136 $76 to $186 | very good price | Find a flight |
| July 2025 | $ 165 $113 to $468 | very good price | Find a flight |
| August 2025 | $ 178 $133 to $282 | very good price | Find a flight |
| September 2025 | $ 231 $173 to $311 | very high price | Find a flight |
| October 2025 | $ 257 $204 to $367 | very high price | Find a flight |
| November 2025 | $ 282 $209 to $404 | very high price | Find a flight |
| December 2025 | $ 302 $209 to $435 | very high price | Find a flight |
| January 2026 | $ 261 $250 to $271 | very high price | Find a flight |
| February 2026 | $ 230 $209 to $271 | very high price | Find a flight |
Data analysis:
Compared to the average price, april, may, june, july and august are cheaper to travel to Denver. So it may be interesting to book now to leave during these months!