How many flights depart from Chicago to Denver on average per day?

As of July 2025, 60 flights take off from Chicago and land in Denver each day. The most common flight departure time for this route is 8:00PM, with 36% of daily flights taking off at noon.

How many flights depart from Chicago to Denver on average per week?

As of July 2025, there are 422 flights per week flying from Chicago to Denver. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

What airlines fly to Denver?

Frontier, United Airlines and American Airlines are the top three most popular airlines that fly to Denver from Chicago according to our data. Frontier is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 4 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Chicago to Denver Intl?

Frontier, United Airlines, and Southwest are the most popular carriers operating from Chicago to Denver Intl

Is flying the fastest way to get from Chicago to Denver?

At 2h 35m, choosing to opt for a flight from Chicago to Denver for this trip versus opting for a train from Chicago to Denver or a bus from Chicago to Denver can save you time on travel.

Is flying the cheapest way to get from Chicago to Denver?

The cheapest way is to get a flight from Chicago to Denver, which can be as cheap as $79. A train from Chicago to Denver is more expensive than a flight, with prices starting at $242. A bus from Chicago to Denver is also an option, with an average price of $222.

When did momondo last update prices for flights from Chicago to Denver Intl Airport?

Prices for flights from Chicago to Denver Intl Airport are updated daily.

How many operators does momondo search for flights from Chicago to Denver Intl Airport?

There are 4 operators available for flights from Chicago to Denver Intl Airport as of July 2025.

How old do you have to be to fly from Chicago to Denver Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$46 Cheap Flights from Chicago to Denver in 2025

Q: What is the typical price of a round-trip flight between Chicago and Denver?

Prices are currently low for flights on this route. Typical prices usually range from $158 to $265. The lowest price recently found on this route was $79.

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Find the cheapest flights from Chicago to Denver

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:00 am - 7:41 amORD-DEN

2h 41mnonstop

8:22 pm - 11:53 pmDEN-ORD

2h 31mnonstop

$79Frontier

Find Deal

vie., oct. 10 - lun., oct. 13

7:20 am - 9:07 amORD-DEN

2h 47mnonstop

8:30 pm - 11:59 pmDEN-ORD

2h 29mnonstop

$83Frontier

Find Deal

mar., sep. 16 - jue., sep. 18

6:00 am - 7:41 amORD-DEN

2h 41mnonstop

8:30 pm - 11:59 pmDEN-ORD

2h 29mnonstop

$84Frontier

Find Deal

vie., sep. 12 - lun., sep. 15

7:20 am - 9:13 amORD-DEN

2h 53mnonstop

7:00 am - 10:37 amDEN-ORD

2h 37mnonstop

$91Frontier

Find Deal

mié., ago. 20 - dom., ago. 24

7:20 am - 9:09 amORD-DEN

2h 49mnonstop

8:22 pm - 11:53 pmDEN-ORD

2h 31mnonstop

$96Frontier

Find Deal

sáb., oct. 18 - lun., oct. 20

10:42 am - 12:33 pmORD-DEN

2h 51mnonstop

5:50 pm - 9:28 pmDEN-ORD

2h 38mnonstop

$100Frontier

Find Deal

jue., sep. 4 - mar., sep. 9

6:00 am - 7:41 amORD-DEN

2h 41mnonstop

8:30 pm - 11:59 pmDEN-ORD

2h 29mnonstop

$103Frontier

Find Deal

lun., sep. 8 - lun., sep. 15

4:48 pm - 6:26 pmMDW-DEN

2h 38mnonstop

12:28 pm - 3:53 pmDEN-MDW

2h 25mnonstop

$104Frontier

Find Deal

lun., sep. 15 - vie., sep. 19

10:42 am - 12:33 pmORD-DEN

2h 51mnonstop

8:30 pm - 11:59 pmDEN-ORD

2h 29mnonstop

$105Frontier

Find Deal

jue., sep. 18 - dom., sep. 21

12:10 pm - 1:45 pmMDW-DEN

2h 35mnonstop

5:25 am - 8:45 amDEN-MDW

2h 20mnonstop

$157Southwest

Find Deal

mié., sep. 17 - lun., sep. 22

Frontier flights from Chicago to Denver

Our best Frontier deals on Chicago to Denver flight tickets

Frontier

Oct 10

ORD6:00 amChicago O'Hare Intl

2h 41m

DEN7:41 amDenver Intl

Oct 13

DEN8:22 pmDenver Intl

2h 31m

ORD11:53 pmChicago O'Hare Intl

$79

Find similar

Frontier

Sep 16

ORD7:20 amChicago O'Hare Intl

2h 47m

DEN9:07 amDenver Intl

Sep 18

DEN8:30 pmDenver Intl

2h 29m

ORD11:59 pmChicago O'Hare Intl

$83

Find similar

Frontier

Sep 12

ORD6:00 amChicago O'Hare Intl

2h 41m

DEN7:41 amDenver Intl

Sep 15

DEN8:30 pmDenver Intl

2h 29m

ORD11:59 pmChicago O'Hare Intl

$84

Find similar

Southwest flights from Chicago to Denver

Our best Southwest deals on Chicago to Denver flight tickets

Southwest

Sep 17

MDW12:10 pmChicago Midway

2h 35m

DEN1:45 pmDenver Intl

Sep 22

DEN5:25 amDenver Intl

2h 20m

MDW8:45 amChicago Midway

$157

Find similar

Southwest

Jul 29

MDW7:00 amChicago Midway

2h 35m

DEN8:35 amDenver Intl

Aug 5

DEN5:50 amDenver Intl

2h 20m

MDW9:10 amChicago Midway

$204

Find similar

Southwest

Jul 29

MDW7:45 amChicago Midway

3h 55m

1 stop

DEN10:40 amDenver Intl

Aug 5

DEN8:35 amDenver Intl

2h 20m

MDW11:55 amChicago Midway

$210

Find similar

How to get the cheapest flight ticket from Chicago to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the typical price of a round-trip flight between Chicago and Denver?

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Chicago is in November. Flight prices, which tend to average around $158, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in November, then you should wait until September to fly from Chicago, when ticket prices are also cheap, with an average price of $159.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $227. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $301.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $218. Flights at noon are often more expensive with an average ticket price of $280.

What is the cheapest Chicago to Denver Intl flight route?

Fly from Chicago Midway to Denver Intl for the best Chicago - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $211 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Chicago for as low as $175 on momondo.

What cabin class options are available on Chicago to Denver Intl flights?

There are 4 cabin classes available to choose from on Chicago to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Denver flight prices changed over time?

As of July 2025, prices for Chicago to Denver flights are approximately 16% cheaper when compared to flights at the same time last year.

When to book flights from Chicago to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Chicago to Denver (CHI to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Denver

Best Price Found	$46
Fastest flight time	2h 35m
Direct flights	Every day
Airports in Denver	1 airport

The best one-way flight to Denver from Chicago in the past 72 hours is $46. The best round-trip flight deal from Chicago to Denver found on momondo in the last 72 hours is $79.

The fastest flight from Chicago to Denver takes 2h 35m

Direct flights go from Chicago to Denver every day.

There is 1 airport near Denver: Denver Intl (DEN)

Search flight deals

Is flying the fastest way to get from Chicago to Denver?
At 2h 35m, choosing to opt for a flight from Chicago to Denver for this trip versus opting for a train from Chicago to Denver or a bus from Chicago to Denver can save you time on travel.
Is flying the cheapest way to get from Chicago to Denver?
The cheapest way is to get a flight from Chicago to Denver, which can be as cheap as $79. A train from Chicago to Denver is more expensive than a flight, with prices starting at $242. A bus from Chicago to Denver is also an option, with an average price of $222.
How far is Chicago to Denver Intl by plane?
Chicago and Denver Intl are 917.4 mi apart from one another. 2h 35m is a normal flight duration for this route.
When did momondo last update prices for flights from Chicago to Denver Intl Airport?
Prices for flights from Chicago to Denver Intl Airport are updated daily.
How many operators does momondo search for flights from Chicago to Denver Intl Airport?
There are 4 operators available for flights from Chicago to Denver Intl Airport as of July 2025.
How old do you have to be to fly from Chicago to Denver Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The necessary travel and health documents for your Denver Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago to Denver?
Based on momondo bookings for flights between Chicago and Denver, the leading plane model is Airbus A321neo, making up 12.01% of the total bookings. Other popular models include Boeing 737-800 with 11.32%, Boeing 737 MAX 8 with 11.21%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 8.51%.
What is the most popular airline from Chicago to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Denver is Frontier (48% of total bookings). The next most popular airlines are Southwest (20%), United Airlines (19%), and American Airlines (13%).

Best airlines flying from Chicago to Denver

Compare and see reviews for airlines that fly from Chicago to Denver with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $49	Free Cancellation	Rating 5.9 3,256 reviews	Search Frontier flights
American Airlines	PriceFrom $156	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $159	Free Cancellation	Rating 7.4 8,861 reviews	Search United Airlines flights
Southwest	PriceFrom $159	Free Cancellation	Rating 8.0 4,241 reviews	Search Southwest flights

Southwest Flights From Chicago to Denver
Southwest is one of the most popular airlines flying from Chicago to Denver, operating 87 flights/week on average for this route. A good Southwest flight deal for Chicago to Denver starts from $159 round-trip, up to an average price of $255. Our users have rated Southwest at 8.0/10.
United Airlines Flights From Chicago to Denver
Across 8,863 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Chicago to Denver about 62 times each week, with ticket deals ranging from $159 to $293. Price data is based on momondo searches in the last 72 hours.

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Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Denver?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Denver. momondo saves you time and could save you money on your trip.

Can I find flights from Chicago to Denver with flexible booking policies on momondo?

Yes. All flights to Denver from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Chicago to Denver?

Once all potential Chicago to Denver flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Chicago to Denver right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Denver flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from Chicago to Denver from $46

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Denver departing on 9/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Filter for what you want

Filter for what you want

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Find the cheapest flights from Chicago to Denver

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Chicago to Denver

Our best Frontier deals on Chicago to Denver flight tickets

Southwest flights from Chicago to Denver

Our best Southwest deals on Chicago to Denver flight tickets

See travel insights to Denver from

How to get the cheapest flight ticket from Chicago to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Chicago and Denver?

What is the cheapest month to fly to Denver?

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Wednesday when prices can be found for as low as $227. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $301.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $218. Flights at noon are often more expensive with an average ticket price of $280.

What is the cheapest Chicago to Denver Intl flight route?

Fly from Chicago Midway to Denver Intl for the best Chicago - Denver Intl flight prices

How far in advance should I book a flight to Denver?

What cabin class options are available on Chicago to Denver Intl flights?

There are 4 cabin classes available to choose from on Chicago to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Chicago to Denver flight prices changed over time?

As of July 2025, prices for Chicago to Denver flights are approximately 16% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Chicago to Denver Intl?

Frontier, United Airlines, and Southwest are the most popular carriers operating from Chicago to Denver Intl

What airlines fly to Denver?

How many flights depart from Chicago to Denver on average per day?

As of July 2025, 60 flights take off from Chicago and land in Denver each day. The most common flight departure time for this route is 8:00PM, with 36% of daily flights taking off at noon.

How many flights depart from Chicago to Denver on average per week?

As of July 2025, there are 422 flights per week flying from Chicago to Denver. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

When to book flights from Chicago to Denver

Cheap Chicago to Denver (CHI to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago to Denver

Best Price Found

Fastest flight time

Direct flights

Airports in Denver

Is flying the fastest way to get from Chicago to Denver?

Is flying the cheapest way to get from Chicago to Denver?

How far is Chicago to Denver Intl by plane?

When did momondo last update prices for flights from Chicago to Denver Intl Airport?

How many operators does momondo search for flights from Chicago to Denver Intl Airport?

How old do you have to be to fly from Chicago to Denver Intl Airport?

What documentation or ID do you need to fly to Denver Intl Airport?

What is the most popular plane model from Chicago to Denver?

What is the most popular airline from Chicago to Denver?

Best airlines flying from Chicago to Denver

Compare and see reviews for airlines that fly from Chicago to Denver with momondo

Southwest Flights From Chicago to Denver

United Airlines Flights From Chicago to Denver

Traveling to a place near Denver?

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Denver?

Can I find flights from Chicago to Denver with flexible booking policies on momondo?

How can momondo help me find flights from Chicago to Denver?

I’m not ready to book a flight from Chicago to Denver right now. Can momondo alert me if prices change?

An easier way to manage your Denver trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Colorado