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

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

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

As of May 2026, there are 68 flights per day flying from Denver to Chicago. The most common time of day flights depart is 5:00PM, with 50% of flights taking off at noon.

What airlines fly to Chicago?

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Chicago from Denver according to our data. United Airlines is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 5 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

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

The number of flights available between Denver and Chicago is 476 per week as of May 2026. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

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

Planning to book a flight from Denver to Chicago can be a safe bet when looking for a low-cost deal to your destination. Currently, a train and a bus are priced higher than the cost of a flight. You can search prices for a train from Denver starting at $447 to Chicago or a bus from Denver to Chicago starting at $180 if that is your preferred method of transportation.

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

Prices for flights from Denver Intl Airport to Chicago were last updated today.

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

As of May 2026, there are 5 operators available to choose from for flights from Denver Intl Airport to Chicago.

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

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 Denver Intl Airport to Chicago.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$91 Cheap Flights from Denver to Chicago in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $341 to $208. The lowest price recently found on this route was $180.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Denver to Chicago

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:30 am - 7:41 pm

DEN

ORD

12h 11m

1 stop

9:37 pm - 11:44 pm

ORD

DEN

3h 07mnonstop

$180Frontier

Wed, May 27 - Fri, May 29

4:54 pm - 8:32 pm

DEN

ORD

2h 38mnonstop

1:29 pm - 10:24 pm

ORD

DEN

9h 55m

1 stop

$181Frontier

Fri, May 29 - Fri, Jun 5

5:05 pm - 8:52 pm

DEN

ORD

2h 47mnonstop

1:50 pm - 10:05 pm

ORD

DEN

9h 15m

1 stop

$182Frontier

Mon, Aug 3 - Thu, Aug 6

6:30 am - 7:50 pm

DEN

ORD

12h 20m

1 stop

9:57 pm - 11:57 pm

ORD

DEN

3h 00mnonstop

$183Frontier

Tue, Jun 30 - Fri, Jul 10

10:00 am - 7:41 pm

DEN

ORD

8h 41m

1 stop

9:37 pm - 11:44 pm

ORD

DEN

3h 07mnonstop

$184Frontier

Wed, May 27 - Thu, Jun 4

5:05 pm - 8:52 pm

DEN

ORD

2h 47mnonstop

1:50 pm - 10:05 pm

ORD

DEN

9h 15m

1 stop

$185Frontier

Mon, Aug 3 - Tue, Aug 11

11:54 pm - 7:55 am

DEN

ORD

7h 01m

1 stop

9:37 pm - 11:44 pm

ORD

DEN

3h 07mnonstop

$186Frontier

Wed, May 27 - Thu, Jun 4

11:46 pm - 8:03 am

DEN

ORD

7h 17m

1 stop

9:57 pm - 11:57 pm

ORD

DEN

3h 00mnonstop

$187Frontier

Wed, Jul 1 - Tue, Jul 7

6:15 am - 9:40 am

DEN

MDW

2h 25mnonstop

5:30 am - 7:05 am

MDW

DEN

2h 35mnonstop

$217Southwest

Tue, Jun 9 - Tue, Jun 16

9:15 am - 7:59 pm

DEN

RFD

9h 44m

1 stop

9:19 am - 2:15 pm

RFD

DEN

5h 56m

1 stop

$328Multiple Airlines

Wed, Jul 29 - Sun, Aug 2

Frontier flights from Denver to Chicago

Our best Frontier deals on Denver to Chicago flight tickets

Frontier

May 27

DEN6:30 amDenver Intl

12h 11m

1 stop

ORD7:41 pmChicago O'Hare Intl

May 29

ORD9:37 pmChicago O'Hare Intl

3h 07m

DEN11:44 pmDenver Intl

$180

Frontier

May 29

DEN4:54 pmDenver Intl

2h 38m

ORD8:32 pmChicago O'Hare Intl

Jun 5

ORD1:29 pmChicago O'Hare Intl

9h 55m

1 stop

DEN10:24 pmDenver Intl

$181

Frontier

Aug 3

DEN5:05 pmDenver Intl

2h 47m

ORD8:52 pmChicago O'Hare Intl

Aug 6

ORD1:50 pmChicago O'Hare Intl

9h 15m

1 stop

DEN10:05 pmDenver Intl

$182

Delta flights from Denver to Chicago

Our best Delta deals on Denver to Chicago flight tickets

Delta

Jul 1

DEN6:00 amDenver Intl

6h 09m

1 stop

MDW1:09 pmChicago Midway

Jul 8

MDW7:06 pmChicago Midway

5h 21m

1 stop

DEN11:27 pmDenver Intl

$237

Delta

Jun 6

DEN6:05 amDenver Intl

5h 37m

1 stop

MDW12:42 pmChicago Midway

Jun 13

MDW9:17 amChicago Midway

5h 39m

1 stop

DEN1:56 pmDenver Intl

$257

Delta

Jul 1

DEN6:00 amDenver Intl

6h 09m

1 stop

MDW1:09 pmChicago Midway

Jul 4

MDW1:49 pmChicago Midway

6h 42m

1 stop

DEN7:31 pmDenver Intl

$261

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 5/27

6:30 am-7:41 pm

1 stop12h 11m

Chicago O'Hare Intl

Fri 5/29

9:37 pm-11:44 pm

Nonstop3h 07m

$180

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 5/29

4:54 pm-8:32 pm

Nonstop2h 38m

Chicago O'Hare Intl

Fri 6/5

1:29 pm-10:24 pm

1 stop9h 55m

$181

DenverChicago

DEN - ORD

DENORD

Denver Intl

Mon 8/3

5:05 pm-8:52 pm

Nonstop2h 47m

Chicago O'Hare Intl

Thu 8/6

1:50 pm-10:05 pm

1 stop9h 15m

$182

DenverChicago

DEN - ORD

DENORD

Denver Intl

Tue 6/30

6:30 am-7:50 pm

1 stop12h 20m

Chicago O'Hare Intl

Fri 7/10

9:57 pm-11:57 pm

Nonstop3h 00m

$183

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 5/27

10:00 am-7:41 pm

1 stop8h 41m

Chicago O'Hare Intl

Thu 6/4

9:37 pm-11:44 pm

Nonstop3h 07m

$184

DenverChicago

DEN - ORD

DENORD

Denver Intl

Mon 8/3

5:05 pm-8:52 pm

Nonstop2h 47m

Chicago O'Hare Intl

Tue 8/11

1:50 pm-10:05 pm

1 stop9h 15m

$185

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 5/27

11:54 pm-7:55 am

1 stop7h 01m

Chicago O'Hare Intl

Thu 6/4

9:37 pm-11:44 pm

Nonstop3h 07m

$186

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 7/1

11:46 pm-8:03 am

1 stop7h 17m

Chicago O'Hare Intl

Tue 7/7

9:57 pm-11:57 pm

Nonstop3h 00m

$187

Quickest round-trip

DenverChicago

DEN - MDW

DENMDW

Denver Intl

Tue 6/9

6:15 am-9:40 am

Nonstop2h 25m

Chicago Midway

Tue 6/16

5:30 am-7:05 am

Nonstop2h 35m

$217

DenverChicago

DEN - RFD

DENRFD

Denver Intl

Wed 7/29

9:15 am-7:59 pm

1 stop9h 44m

Chicago Greater Rockford

Sun 8/2

9:19 am-2:15 pm

1 stop5h 56m

$328

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Denver to Chicago

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 Denver and Chicago?

What is the cheapest month to fly to Chicago?

The month of August is, on average, the cheapest month to fly to Chicago from Denver, with most prices found around $224. If you’re not able to fly to Chicago in August, then September is your next best option. Flight prices from Denver to Chicago during September average around $237.

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

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $302. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Denver to Chicago for around $516.

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

Our most recent data shows that the best time of day to fly to Chicago is in the evening. Flights from Denver to Chicago during this time can be as low as $228. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $535.

What is the cheapest Denver Intl to Chicago flight route?

Fly from Denver Intl to Chicago O'Hare Intl for the best Denver Intl - Chicago flight prices

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

You are more likely to see cheaper flights to Chicago from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $271 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Denver for as low as $203 on momondo.

Can stopping save me money on Denver to Chicago flights?

No. A direct flight is the cheapest option for a flight between Denver to Chicago.

How have Denver to Chicago flight prices changed over time?

As of May 2026, prices for Denver to Chicago flights are approximately 162% more expensive when compared to flights at the same time last year.

When to book flights from Denver to Chicago

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

Estimated round-trip price

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

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

Best Price Found	$162
Fastest flight time	2h 15m
Direct flights	Every day
Airports in Chicago	3 airports

The best one-way flight to Chicago from Denver in the past 72 hours is $162. The best round-trip flight deal from Denver to Chicago found on momondo in the last 72 hours is $294.

The fastest flight from Denver to Chicago takes 2h 15m

Direct flights go from Denver to Chicago every day.

There are 3 airports in Chicago. From Denver there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Denver to Chicago

Is flying the cheapest way to get from Denver to Chicago?
Planning to book a flight from Denver to Chicago can be a safe bet when looking for a low-cost deal to your destination. Currently, a train and a bus are priced higher than the cost of a flight. You can search prices for a train from Denver starting at $447 to Chicago or a bus from Denver to Chicago starting at $180 if that is your preferred method of transportation.
How far is Denver Intl to Chicago by plane?
There are 917.4 mi between Denver Intl and Chicago. 2h 15m is a normal flight duration for this route.
When did momondo last update prices for flights from Denver Intl Airport to Chicago?
Prices for flights from Denver Intl Airport to Chicago were last updated today.
How many operators does momondo search for flights from Denver Intl Airport to Chicago?
As of May 2026, there are 5 operators available to choose from for flights from Denver Intl Airport to Chicago.
How old do you have to be to fly from Denver Intl Airport to Chicago?
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 Denver Intl Airport to Chicago.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Denver to Chicago?
momondo data reveals that the most frequently booked plane model on the route from Denver to Chicago is Airbus A321neo, representing 16.29% of all bookings. The subsequent popular models are Boeing 737-800 at 15.14%, Boeing 737 MAX 8 at 11.07%, and Airbus A319 at 10.36%.
What is the most popular airline from Denver to Chicago?
Based on momondo bookings for flights between Denver and Chicago, the leading airline is Frontier, making up 37% of the total bookings. Other popular airlines include American Airlines with 23%, United Airlines with 23%, and Southwest with 17%.

Best airlines flying from Denver to Chicago

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $76	Free Cancellation	Rating 5.6 2,953 reviews	Search Frontier flights
JetBlue	PriceFrom $126	Free Cancellation	Rating 7.1 2,975 reviews	Search JetBlue flights
Southwest	PriceFrom $157	Free Cancellation	Rating 8.0 4,299 reviews	Search Southwest flights
American Airlines	PriceFrom $159	Free Cancellation	Rating 7.1 11,663 reviews	Search American Airlines flights
United Airlines	PriceFrom $170	Free Cancellation	Rating 7.4 9,715 reviews	Search United Airlines flights

Southwest Flights From Denver to Chicago
The lowest priced Southwest flight from Denver to Chicago from the last 72 hours was $157. Generally, Southwest has 47 flights on this route every week with an average price of $287. Southwest is rated 8.0/10 by our users.
United Airlines Flights From Denver to Chicago
Across 9,715 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Denver to Chicago about 85 times each week, with ticket deals ranging from $170 to $341. Price data is based on momondo searches in the last 72 hours.

Merrillville

New Buffalo

Hammond

Saint Joseph

Benton Harbor

Portage

Lansing

Valparaiso

Munster

Schererville

Crown Point

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Denver to Chicago for you.

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

Yes. momondo enables you to select and highlight flights to Chicago from Denver with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Denver.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Denver and alert you when they change.

An easier way to manage your Chicago 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 6/13

Sat 6/20

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Denver

Complete your trip

Feeling lucky

Fly into one of these airports located in Chicago

Chicago Midway Airport

Chicago O'Hare Intl Airport

Chicago Greater Rockford Airport

Cheap flights from Denver to Chicago from $91

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Chicago departing on 6/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Denver to Chicago

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Frontier flights from Denver to Chicago

Our best Frontier deals on Denver to Chicago flight tickets

Delta flights from Denver to Chicago

Our best Delta deals on Denver to Chicago flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Denver to Chicago that are best for you.

See travel insights to Chicago from

How to get the cheapest flight ticket from Denver to Chicago

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

What is the cheapest month to fly to Chicago?

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

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

What is the cheapest Denver Intl to Chicago flight route?

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

Can stopping save me money on Denver to Chicago flights?

How have Denver to Chicago flight prices changed over time?

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

What airlines fly to Chicago?

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

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

When to book flights from Denver to Chicago

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Chicago

Frequently asked questions about flying from Denver to Chicago

Best airlines flying from Denver to Chicago

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

Southwest Flights From Denver to Chicago

United Airlines Flights From Denver to Chicago

Traveling to a place near Chicago?

Why use momondo?

An easier way to manage your Chicago 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

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago

Fly your favorite airline to Chicago

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Chicago

List of cabin classes available on flights landing in Chicago. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Denver

According to popular flight searches on momondo this year

Complete your trip to Chicago

Explore popular destinations other users love

According to popular flight searches on momondo this year