F9's UpFront Plus seats offer more comfort with a guaranteed empty middle seat.
Book early morning flights on F9 for better on-time performance and fewer delays.
$58+ Cheap flights from Chicago (CHI) to Denver (DEN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Dec 28 — Jan 41
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Chicago to Denver with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.The best prices from Chicago to Denver Intl are usually found in May or April, booked 30 days in advance, depart on a Saturday or Tuesday and return on a Wednesday
Cheap flight deals from Chicago to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 23, 2024.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $76 (Cheapflightsfares) |
One-way from | $58 (Cheapflightsfares) |
Popular in | December |
Cheapest in | May |
Average price | $247 |
Find flight deals from Chicago to Denver
Cheapest flights from Chicago to DenverExplore the most affordable flight options available from Chicago to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.
Explore the most affordable flight options available from Chicago to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2024.
This Trip.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/314:08 pmMDW - DEN
1 stop8h 36mFrontier
Tue 1/78:55 pmDEN - MDW
Nonstop2h 18mFrontier
Deal found 12/22![Frontier logo]()
$159
This FlightHub deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:55 amORD - DEN
Nonstop2h 57mFrontier
Sun 12/294:01 pmDEN - ORD
Nonstop2h 33mFrontier
Deal found 12/23![Frontier logo]()
$263
This American Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/309:19 pmORD - DEN
Nonstop2h 48mAmerican Airlines
Wed 1/16:28 amDEN - ORD
Nonstop2h 42mAmerican Airlines
Deal found 12/23![American Airlines logo]()
$335
This FlightHub deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/277:33 pmORD - DEN
1 stop12h 24mMultiple Airlines
Wed 1/18:10 pmDEN - ORD
Nonstop2h 36mMultiple Airlines
Deal found 12/23![Multiple Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/296:05 amMDW - DEN
1 stop4h 30mSouthwest
Tue 12/315:20 pmDEN - MDW
Nonstop2h 20mSouthwest
Deal found 12/22![Southwest logo]()
$345
This Sun Country Air deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/307:30 pmORD - DEN
1 stop14h 38mSun Country Air
Sun 1/57:15 pmDEN - ORD
1 stop21h 50mSun Country Air
Deal found 12/23![Sun Country Air logo]()
$348
This Southwest deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/315:45 pmORD - DEN
1 stop6h 00mSouthwest
Sat 1/45:25 amDEN - ORD
1 stop6h 35mSouthwest
Deal found 12/23![Southwest logo]()
$414
This United Airlines deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/309:40 pmORD - DEN
Nonstop2h 54mUnited Airlines
Thu 1/26:00 amDEN - ORD
Nonstop2h 38mUnited Airlines
Deal found 12/23![United Airlines logo]()
$481
This Delta deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/265:30 pmORD - DEN
1 stop6h 00mDelta
Mon 12/3012:20 amDEN - ORD
1 stop8h 01mDelta
Deal found 12/23![Delta logo]()
$508
This Delta deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2411:48 amMDW - DEN
1 stop5h 58mDelta
Mon 12/3012:20 amDEN - MDW
1 stop7h 30mDelta
Deal found 12/23![Delta logo]()
$508
This Gotogate deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/241:40 pmORD - DEN
1 stop4h 00mDenver Air Connection
Thu 12/264:55 pmDEN - ORD
1 stop16h 30mDenver Air Connection
Deal found 12/23![Denver Air Connection logo]()
$522
Find flights from Chicago to Denver within your budget
Customize your flight search to find flights from Chicago to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.
Fly from
Any airport
Fly to
Any airport
Route
Depart
Return
Price
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 2/19
6:50 am-8:53 am
Nonstop3h 03m
Denver Intl
Mon 2/24
9:08 pm-12:44 am
Nonstop2h 36m
$76
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Mon 2/24
6:40 am-8:32 am
Nonstop2h 52m
Denver Intl
Tue 2/25
8:55 pm-12:17 am
Nonstop2h 22m
$77
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Wed 1/22
5:35 pm-7:16 pm
Nonstop2h 41m
Denver Intl
Wed 1/29
1:00 pm-4:35 pm
Nonstop2h 35m
$139
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Sat 1/18
2:35 pm-4:20 pm
Nonstop2h 45m
Denver Intl
Sat 1/25
6:10 pm-9:30 pm
Nonstop2h 20m
$165
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Fri 1/31
4:08 pm-5:59 pm
Nonstop2h 51m
Denver Intl
Sat 2/8
5:55 pm-9:25 pm
Nonstop2h 30m
$168
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Sat 2/15
7:05 pm-9:00 pm
Nonstop2h 55m
Denver Intl
Sun 2/16
10:55 am-2:25 pm
Nonstop2h 30m
$173
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Tue 1/21
1:40 pm-4:40 pm
1 stop4h 00m
Denver Intl
Thu 1/30
10:26 am-2:02 pm
Nonstop2h 36m
$196
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Tue 2/11
10:10 am-5:03 pm
1 stop7h 53m
Denver Intl
Wed 2/19
6:15 am-12:55 pm
1 stop5h 40m
$216
ChicagoDenver
MDW - DEN
MDWDEN
Chicago Midway
Tue 2/11
1:26 pm-8:25 pm
1 stop7h 59m
Denver Intl
Tue 2/18
6:15 am-1:05 pm
1 stop5h 50m
$216
ChicagoDenver
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Mon 2/17
6:50 am-8:53 am
Nonstop3h 03m
$58
Showing 1-10 of 23 results
Compare providers for flights from Chicago to Denver
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Denver in December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Chicago-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Denver flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
The best insider tips for Chicago to Denver flights
Find out what our experts recommend to make the most of your Chicago to Denver trip
Airlines
![Frontier]()
Frontier
![United Airlines]()
United Airlines
UA's Economy Plus offers extra legroom, ideal for a comfortable short flight.
UA's MileagePlus program allows pooling miles, making it easier to earn free flights.
![American Airlines]()
American Airlines
AA offers Main Cabin Extra seats with more legroom for a comfortable short-haul experience.
Enjoy priority boarding and check-in with AA's loyalty program, enhancing your travel efficiency.
Airports
Our travel experts
Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Best time to book a flight from Chicago to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Chicago with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Travel insights for flights from Chicago to Denver
Get recent, data-driven insights about flights from Chicago to Denver including ideal travel times, pricing trends, and more.
How far ahead should I book a flight from Chicago to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Chicago to Denver. Price data was last updated on December 20, 2024.
The price you pay for your flight from Chicago to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 30 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chicago to Denver?
Currently, October is the cheapest month in which you can book a flight from Chicago to Denver (average of $197). Flying from Chicago to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to DEN?
Find hourly flight availability from Chicago to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 23, 2024.
A simple way to save on the total cost of your ticket is to fly from Chicago to Denver in the afternoon. If you’re flexible enough to do this you can expect to save up to 52% on your trip compared to booking a flight at noon.
What is the cheapest day to fly from Chicago to Denver?
Use this chart to determine the cheapest time to fly round-trip from Chicago to Denver. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Chicago to Denver flight should consider departing on Saturday afternoons when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Chicago to Denver
Explore weekly flight availability from Chicago to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 23, 2024.
The most flights from CHI to DEN are scheduled on a Sunday (58 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (18 on average).
Rainfall in Denver by month
Plan your trip to Denver by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Denver ranges from 0.5 - 2.3 inches per month. May is typically the wettest month, when rainfall can reach 2.3 in. January is typically the driest time to visit Denver when rainfall is around 0.5 in.
Temperature in Denver by month
Plan your trip to Denver by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Denver, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated December 23, 2024.
To help decide which airline to fly from Chicago to Denver, see what other customers have to say about Delta, Frontier and Southwest. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
4,780 reviews
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
9,549 reviews
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
8,588 reviews
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
9,022 reviews
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
10,000 reviews
4,780 reviews
Food
7.2
Entertainment
7.7
Overall
8.1
Boarding
8.2
Crew
8.7
Comfort
8.1
Reviews
1 / 10
My first time, surprisingly good! It was a good ride overall. Coming from Singapore, this budget flight is better than the budget airline for our national carrier Singapore Airlines.
Related info for your journey
Find useful and relevant information for your journey from Chicago to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Chicago to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 5 airlines flying from Chicago to Denver
Discover the top 5 airlines that operate flights from Chicago to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 23, 2024.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$39 | Average$119 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$241 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$152 | Average$303 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$157 | Average$249 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$185 | Average$371 | FlexibilityNo cancel fee | On-timeN/A |