HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$43+ 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 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEN
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
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 November 21, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

December

Cheapest in

May

Round-trip from

$75
(Kiwi.com)

One-way from

$43
(Cheapflightsfares)
Provider with most accurate pricing for Chicago (CHI)-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Denver Intl flights.
Search Deals
High demand for flights, 22% potential price rise
Search Deals
Best time to find cheap flights, 18% potential price drop
Search Deals
From Chicago (CHI) to Denver Intl
Search Deals
One-way flight from Chicago (CHI) to Denver Intl
Search Deals

Find flight deals from Chicago to Denver

Cheapest flights from Chicago to Denver
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 November 21, 2024.

This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:15 amMDW - DEN
Nonstop2h 52mFrontier
Sun 12/158:55 pmDEN - MDW
Nonstop2h 18mFrontier
Deal found 11/20$75
This Kiwi.com deal was found by Cheapflights users on 11/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/246:55 amORD - DEN
Nonstop2h 57mFrontier
Thu 1/24:01 pmDEN - ORD
Nonstop2h 33mFrontier
Deal found 11/20$80
This American Airlines deal was found by Cheapflights users on 11/21. 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.
Thu 12/128:45 pmORD - DEN
Nonstop2h 52mAmerican Airlines
Sat 12/147:00 amDEN - ORD
Nonstop2h 45mAmerican Airlines
Deal found 11/21$159
This Southwest deal was found by Cheapflights users on 11/19. 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 12/248:35 pmMDW - DEN
Nonstop2h 45mSouthwest
Mon 12/308:55 pmDEN - MDW
Nonstop2h 20mSouthwest
Deal found 11/19$170
This CheapOair deal was found by Cheapflights users on 11/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:25 amORD - DEN
Nonstop3h 01mMultiple Airlines
Sat 12/1412:50 pmDEN - ORD
1 stop21h 45mMultiple Airlines
Deal found 11/20$172
This United Airlines deal was found by Cheapflights users on 11/20. 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.
Wed 12/112:30 pmORD - DEN
Nonstop2h 50mUnited Airlines
Sun 12/226:00 pmDEN - ORD
Nonstop2h 30mUnited Airlines
Deal found 11/20$192
This Southwest deal was found by Cheapflights users on 11/20. 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.
Wed 12/117:30 amORD - DEN
1 stop7h 05mSouthwest
Sat 12/146:20 amDEN - ORD
Nonstop2h 40mSouthwest
Deal found 11/20$204
This Sun Country Air deal was found by Cheapflights users on 11/21. 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.
Tue 12/2410:00 amORD - DEN
1 stop8h 17mSun Country Air
Mon 12/306:50 pmDEN - ORD
1 stop21h 48mSun Country Air
Deal found 11/21$205
This Delta deal was found by Cheapflights users on 11/20. 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.
Sat 12/1412:30 pmORD - DEN
1 stop4h 38mDelta
Tue 12/172:23 pmDEN - ORD
1 stop4h 22mDelta
Deal found 11/20$216
This Delta deal was found by Cheapflights users on 11/20. 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.
Wed 12/119:38 amMDW - DEN
1 stop4h 39mDelta
Thu 12/1210:50 amDEN - MDW
1 stop6h 42mDelta
Deal found 11/20$216

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 2,612,795 searches. Data last updated November 21, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Tue 1/21

8:15 am-10:08 am

Nonstop2h 53m

Denver Intl

Thu 1/23

8:55 pm-12:17 am

Nonstop2h 22m

$75

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 1/30

7:25 am-9:15 am

Nonstop2h 50m

Denver Intl

Sun 2/2

8:59 pm-12:32 am

Nonstop2h 33m

$76

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 12/12

8:45 pm-10:37 pm

Nonstop2h 52m

Denver Intl

Sat 12/14

7:00 am-10:45 am

Nonstop2h 45m

$159

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 1/9

7:10 am-9:00 am

Nonstop2h 50m

Denver Intl

Sat 1/11

8:29 pm-11:59 pm

Nonstop2h 30m

$163

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Sat 12/14

6:30 am-8:15 am

Nonstop2h 45m

Denver Intl

Wed 12/18

6:55 am-10:25 am

Nonstop2h 30m

$170

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Thu 12/12

7:25 am-9:26 am

Nonstop3h 01m

Denver Intl

Sat 12/14

12:50 pm-11:35 am

1 stop21h 45m

$172

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Wed 12/11

7:30 am-1:35 pm

1 stop7h 05m

Denver Intl

Sat 12/14

6:20 am-10:00 am

Nonstop2h 40m

$204

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Tue 12/24

10:00 am-5:17 pm

1 stop8h 17m

Denver Intl

Mon 12/30

6:50 pm-5:38 pm

1 stop21h 48m

$205

ChicagoDenver

ORD - DEN

ORDDEN

Chicago O'Hare Intl

Sat 12/14

12:30 pm-4:08 pm

1 stop4h 38m

Denver Intl

Tue 12/17

2:23 pm-7:45 pm

1 stop4h 22m

$216

ChicagoDenver

MDW - DEN

MDWDEN

Chicago Midway

Fri 12/13

7:14 pm-11:27 pm

1 stop5h 13m

Denver Intl

Sun 12/15

5:45 am-1:31 pm

1 stop6h 46m

$216

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 22 results
1
2
3

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*1 star
PricelinePrice Accuracy1 starTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
CheapOairPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.

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 November 15, 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 $271). 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 November 21, 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 November 18, 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 November 21, 2024.

The most flights from CHI to DEN are scheduled on a Thursday (62 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 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 November 21, 2024.
To help decide which airline to fly from Chicago to Denver, see what other customers have to say about Frontier, American Airlines 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.
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

Southwest
8.1
Very good
5,005 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

Delta
8.0
Very good
8,755 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

United Airlines
7.4
Good
9,172 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

Sun Country Air
7.0
Good
415 reviews
Southwest
8.1
Very good
5,005 reviews

Entertainment

7.7

Comfort

8.1

Boarding

8.2

Food

7.2

Overall

8.1

Crew

8.7

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.

  • 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. 5 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 44 inbound flights from Chicago per day.

  • What are the cheapest airlines flying from Chicago to Denver round-trip?

    Frontier, at $75, was found to be the cheapest airline from Chicago to Denver.Alternate airlines to your destination round-trip include American Airlines and Southwest. Users have found that Frontier is 57% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Chicago to Denver one-way?

    One-way options have recently been found by users for as low as $43 on Frontier. Other airlines that offer cheap prices include American Airlines from $70 and United Airlines from $79 one-way.

  • What are the most reliable airlines from Chicago to Denver?

    The top 3 most reliable airlines when flying from Chicago to Denver are Air Canada (90%), Southwest (89%) and Japan Airlines (88%).

  • What are the cheapest flights from Chicago to Denver?

    Looking at all options, your cheapest flight can be booked for $50. While the most popular route (Chicago O'Hare Intl - Denver Intl) can be booked for $91 on average our data indicates $749 when flying from Chicago to Denver.

  • Can I find deals for flights from Chicago to Denver that include hotel bookings?

    Yes. In addition to deals on Chicago to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chicago to Denver.

  • Can I find deals for business class flights from Chicago to Denver?

    Yes. Cheapflights offers flight deals from Chicago to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $271). 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.

See more FAQs

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.
O'Hare Intl to Denver flights
Midway to Denver flights
St. Louis to Denver flights
O'Hare Intl to Aspen flights
O'Hare Intl to Vail flights
O'Hare Intl to Colorado Springs flights
Moline to Denver flights
O'Hare Intl to Montrose flights
O'Hare Intl to Hayden flights
Midway to Colorado Springs flights
Midway to Aspen flights
St. Louis to Colorado Springs flights
O'Hare Intl to Grand Junction flights
O'Hare Intl to Gunnison flights
Peoria to Denver flights
St. Louis to Vail flights
Evansville to Denver flights
St. Louis to Aspen flights
Bloomington to Denver flights
O'Hare Intl to Durango flights
St. Louis to Durango flights
Decatur to Denver flights
Moline to Colorado Springs flights
Springfield to Denver flights
St. Louis to Montrose flights
Midway to Grand Junction flights
St. Louis to Gunnison flights
St. Louis to Grand Junction flights
Champaign to Denver flights
Evansville to Vail flights
Dubuque to Denver flights
Peoria to Colorado Springs flights
St. Louis to Hayden flights
Moline to Montrose flights
Paducah to Colorado Springs flights
Moline to Vail flights
Springfield to Colorado Springs flights
Champaign to Colorado Springs flights
Moline to Grand Junction flights
Bloomington to Colorado Springs flights
Bloomington to Montrose flights
Evansville to Grand Junction flights
St. Louis to Cortez flights
Evansville to Colorado Springs flights
Peoria to Montrose flights
O'Hare Intl to Cortez flights

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 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$39Average$118FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$139Average$243FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$153Average$306FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$156Average$253FlexibilityNo cancel feeOn-time63%
DeltaCheapest$185Average$371FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
View all available airlines