Cheap flights from Chicago (CHI) to Denver (DEN) from $29
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
The best prices from Chicago to Denver Intl are usually found in January or February, booked 27 days in advance, depart on a Wednesday or Saturday and return on a Wednesday
How to find the cheapest flight from Chicago (CHI) to Denver (DEN)
All the information you need to plan the best CHI to DEN flight in 2023: compare Chicago to Denver flight prices with the expected peak season, weather and rainfall in Denver.
Popular in | July |
|---|---|
Cheapest in | January |
Round-trip from | $197 |
One-way from | $29 |
CHI - DEN Price | $197 - $392 |
|---|---|
DEN Temperature | 30.2 - 73.4 °F |
DEN Rainfall | 0.5 - 2.3 inches |
What is the cheapest day to fly round-trip from Chicago to Denver?
Travelers have found that booking a Tuesday departure is the best way to save up to 36% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.
How far in advance should I book a flight from Chicago to Denver?
To save up to 27% on this flight, we recommend booking at least 25 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Chicago to Denver from $264 1-2 weeks out and tickets from $335 for flights departing within the next 72 hours.
What is the cheapest month to fly from Chicago to Denver?
Our data shows that January tends to be the cheapest month to fly to Denver from Chicago. Users have commonly found prices around $254 for the month, but tickets can be as low as $93. Due to multiple factors, prepare for potentially higher prices in July.
When is the cheapest time to fly from Chicago to Denver (CHI - DEN)?
A simple way to save on the total cost of your ticket is to fly from Chicago to Denver in the morning. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight at noon.
Cheap Frontier flights from Chicago to Denver
Check out some of the cheapest Frontier flights we've come across from Chicago to Denver. It's recommended that users confirm their flight details before booking.
One of the most popular airlines traveling from Chicago to Denver is Frontier. Flights from Frontier traveling this route typically cost $265.54 RT. This price is typically 14% cheaper than other airlines that offer Chicago to Denver flights. When booking this route, the cheapest RT price found was $116. Chicago O'Hare Intl Airport is the most common Chicago airport to take off from when flying to Denver. Denver Intl Airport is the most popular arrival airport in Denver. When flying from Chicago to Denver, Frontier flights are 30% more popular than any other airline flying that same route.
Cheap American Airlines flights from Chicago to Denver
To aid your search, here are some of the cheapest American Airlines flights we've found from Chicago to Denver. Ensure the flight price, dates, time, and airline match your criteria before you book.
If you’re traveling from Chicago to Denver, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $297.81 RT. This price is typically 57% more expensive than other airlines that offer Chicago to Denver flights. When booking this route, the cheapest RT price found was $124. The most popular departure airport in Chicago when flying to Denver is Chicago O'Hare Intl Airport. The most popular airport to fly into when visiting Denver is Denver Intl Airport. When flying from Chicago to Denver, American Airlines flights are 26% more popular than any other airline flying that same route.
Cheap Chicago to Denver flights in September & October 2023
The best prices found for CHI to DEN flights for September, October
Scroll through some of the best deals on flights from Chicago to Denver in 2023. Check back soon for alternative fares.
Chicago to Denver 2023 flight deals
Cheap flights to Denver from Chicago found for this year
Scroll through some of the best deals on flights from Chicago to Denver in 2023. Check back soon for alternative fares.
Non-stop flights to Denver from Chicago
Save time with Chicago to Denver direct flight deals
Take a look at some of the direct flights traveling from Chicago to Denver in the near future. Search for alternative flights from Chicago to Denver by utilizing the search form above.
Chicago to Denver flights leaving soon
Late deals on return flights to Denver from Chicago, departing today and this week
Consider one of these great deals we found on last-minute flights from Chicago to Denver. Users should be sure to double check the price, date, and time of their last-minute flight.
One-way flights to Denver from Chicago
The cheapest one-way flights from Chicago to Denver
Users traveling one-way from Chicago to Denver can select one of these great deals. For those needing a return trip from Chicago, there is a search form available above.
Find flights from Chicago to Denver within your budget
Use the slider to find flights from Chicago to Denver that fit your budget.
Fly from
Fly to
Budget
$38 - $154
Route
Depart
Return
Price
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Mi 11/1
Nonstop2h 47m
Denver Intl
Sa 11/4
Nonstop2h 30m
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Di 10/24
Nonstop2h 47m
Denver Intl
Mi 10/25
Nonstop2h 30m
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Sa 11/4
Nonstop2h 47m
Denver Intl
Di 11/7
Nonstop2h 21m
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Sa 10/28
Nonstop2h 47m
Denver Intl
Di 10/31
Nonstop2h 29m
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Do 10/26
Nonstop2h 47m
Denver Intl
Di 10/31
Nonstop2h 29m
Chicago MidwayDenver Intl
MDW - DEN
MDWDEN
Chicago Midway
Mi 10/18
Nonstop2h 47m
Denver Intl
Di 10/24
Nonstop2h 29m
Chicago O'Hare IntlDenver Intl
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Mi 10/25
1 stop7h 10m
Denver Intl
Mi 11/1
1 stop11h 16m
Chicago O'Hare IntlDenver Intl
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Di 10/24
2 stops15h 36m
Denver Intl
Mi 10/25
1 stop10h 53m
Chicago O'Hare IntlDenver Intl
ORD - DEN
ORDDEN
Chicago O'Hare Intl
Fr 10/27
Nonstop2h 47m
Denver Intl
Mo 10/30
Nonstop2h 28m
Reviews of airlines servicing Denver
To help decide which airline to fly from Chicago to Denver, see what other customers have to say about Frontier, American Airlines and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Entertainment
Boarding
Comfort
Overall
Crew
Food
Reviews
We were rebooked from our original 7 am flight to a 9:25 am flight. We tried but could not get seat assignments upon online check-in. At the airport, the security officer almost did not let us through to the gate, since our boarding pass had no QR code and said "seat assignment at the gate." When we made it to the gate and asked for seat assignments, the gate agents kept telling us that they were not authorized to assign us seats and that we would be assigned seats 30 mins prior to departure. They referred us to the service center that would not help either. Since they also said that the flight was full, we were left in doubt if we were going to make it onto this flight. Finally, after everybody else's seats had been assigned, about 15 mins to departure they assigned us two separate seats. We could not sit together. Whoever designed seat assignment and boarding procedures at Alaska Airlines must have zero understanding of how to make such a process work smoothly and efficiently. We'll think twice before booking another flight with Alaska!
Related info for your journey
Useful info, stats and facts about Chicago to Denver flights.
What airport do you fly into for flights to Denver from Chicago?
Denver Intl (DEN), located 18.5 mi from the city center, is the airport you fly into when you book flights from Chicago to Denver. 6 airlines have flights to Denver Intl from Chicago on a regular basis. Booking flights from Chicago to Denver Intl should not be difficult; the airport handles an average of 52 inbound flights from Chicago per day.
Can I find flights from Chicago to Denver for under $100 on Cheapflights?
Yes, there are multiple flights from Chicago to Denver for under $100. The cheapest flight booked recently is on Frontier for just $38, but on average you can expect to pay $57.
Are there nonstop flights from Chicago to Denver for under $100 on Cheapflights?
Cheapflights has at least 20 direct flights from Chicago to Denver under $100. A good price for a nonstop flight from Chicago to Denver is less than $57.
Are there last-minute flights available from Chicago to Denver for under $100?
There are currently 20+ open flights from Chicago to Denver within the next 7 days for less than $100.
What days are nonstop flights available from Chicago to Denver?
Nonstop flights are available for this route on the following days: Sunday, Monday, Tuesday, Thursday, Friday, Saturday.
How many flights depart from Chicago to Denver on average per day?
69 flight departures from Chicago to Denver per day on average.
Early Morning (Midnight to 6am) - 1% of flight departures
Morning (6am - Noon) - 28% of flight departures
Afternoon (Noon - 6pm) - 39% of flight departures
Evening (6pm - Midnight) - 32% of flight departures
How long is the flight from Chicago to Denver?
A quick flight from Chicago to Denver can take about 2h 47m. Frontier provides one of the quickest options available for as low as $38. There are 891 mi between Chicago and Denver. Generally, flights for this route are nonstop.
What is the cheapest airline to fly from Chicago to Denver round-trip?
Frontier, at $38, was found to be the cheapest airline from Chicago to Denver.. Users have found that Frontier is 85% cheaper than the other options available to this destination.
What are the most popular airlines that fly from Chicago to Denver?
The most popular airlines flying from Chicago to Denver are American Airlines, Delta and Frontier. Something to consider prior to booking your flight.
What are the most reliable airlines from Chicago to Denver?
The top 3 most reliable airlines when flying from Chicago to Denver are Japan Airlines (82%), United Airlines (80%) and Iberia (79%).
What are the cheapest flights from Chicago to Denver?
Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Chicago O'Hare Intl - Denver Intl) can be booked for $86 on average our data indicates $532 when flying from Chicago to Denver.
What does ORD to DEN mean?
ORD stands for Chicago O'Hare Intl Airport, while DEN stands for Denver Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. Chicago Midway Airport (MDW), Chicago Greater Rockford Airport (RFD) are other airports near this flight route and their unique identifiers/IATA codes.
Other flights from Chicago
Flights to Denver from Chicago
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Alternative routes for Chicago to Denver
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Chicago to Denver
The chart below displays the airlines Cheapflights users traveling from Chicago to Denver choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Fly your favorite airline from Chicago
Hourly flight availability from Chicago to Denver
See what time of day planes typically take off from Chicago to Denver
| 8%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 27%of flight departures | Morning6 am to noon |
| 36%of flight departures | AfternoonNoon to 6 pm |
| 29%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Chicago to Denver
See how many times per day planes take to the skies headed from Chicago to Denver
| Sunday | 42daily flights |
|---|---|
| Monday | 67daily flights |
| Tuesday | 47daily flights |
| Wednesday | 48daily flights |
| Thursday | 57daily flights |
| Friday | 67daily flights |
| Saturday | 41daily flights |
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How does Cheapflights help users find flights from Chicago to Denver?
When you search for this flight from Chicago to Denver, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Chicago to Denver?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Chicago to Denver.
Can Cheapflights find flights from Chicago to Denver with no change fees?
Certainly. Search results for flights to Denver from Chicago shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Chicago to Denver become cheaper?
Yes, Cheapflights does offer price alerts on Chicago to Denver flights so you can book your travels when it’s right. The Price Alert feature is available after a flight search is performed above.