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Cheap flights from Chicago to Denver from $38

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 5/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Chicago to Denver

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Chicago to Denver.
Frontier Logo
6:00 am - 8:02 amORD-DEN
3h 02mnonstop
Frontier Logo
8:22 pm - 11:52 pmDEN-ORD
2h 30mnonstop
$78Frontier
Find Deal
dom., may. 25 - jue., may. 29
Frontier Logo
6:00 am - 8:02 amORD-DEN
3h 02mnonstop
Frontier Logo
8:22 pm - 11:59 pmDEN-ORD
2h 37mnonstop
$83Frontier
Find Deal
mié., may. 28 - lun., jun. 2
Southwest Logo
7:00 am - 8:40 amORD-DEN
2h 40mnonstop
Southwest Logo
1:15 pm - 4:45 pmDEN-ORD
2h 30mnonstop
$151Southwest
Find Deal
mié., may. 7 - mié., may. 7
Southwest Logo
1:35 pm - 3:10 pmMDW-DEN
2h 35mnonstop
Southwest Logo
6:55 am - 10:15 amDEN-MDW
2h 20mnonstop
$151Southwest
Find Deal
sáb., may. 24 - dom., may. 25
American Airlines Logo
9:45 pm - 11:33 pmORD-DEN
2h 48mnonstop
American Airlines Logo
1:45 pm - 5:31 pmDEN-ORD
2h 46mnonstop
$155American Airlines
Find Deal
mié., may. 7 - sáb., may. 17
United Airlines Logo
5:05 am - 6:54 amORD-DEN
2h 49mnonstop
United Airlines Logo
6:00 am - 9:33 amDEN-ORD
2h 33mnonstop
$160United Airlines
Find Deal
jue., may. 8 - sáb., may. 10
American Airlines Logo
6:55 am - 8:36 amORD-DEN
2h 41mnonstop
American Airlines Logo
12:19 pm - 3:51 pmDEN-ORD
2h 32mnonstop
$165American Airlines
Find Deal
vie., may. 30 - mié., jun. 4
United Airlines Logo
5:05 am - 6:54 amORD-DEN
2h 49mnonstop
United Airlines Logo
7:35 pm - 11:07 pmDEN-ORD
2h 32mnonstop
$169United Airlines
Find Deal
jue., may. 15 - lun., may. 19
Delta Logo
8:40 am - 1:30 pmORD-DEN
5h 50m1 stop
Delta Logo
10:31 am - 6:37 pmDEN-ORD
7h 06m1 stop
$217Delta
Find Deal
dom., may. 25 - jue., may. 29
Delta Logo
9:20 am - 1:30 pmMDW-DEN
5h 10m1 stop
Delta Logo
7:00 am - 12:28 pmDEN-MDW
4h 28m1 stop
$217Delta
Find Deal
dom., may. 25 - jue., may. 29

American Airlines flights from Chicago to Denver

Our best American Airlines deals on Chicago to Denver flight tickets
American Airlines
May 7
ORD9:45 pmChicago O'Hare Intl
2h 48m
DEN11:33 pmDenver Intl
May 17
DEN1:45 pmDenver Intl
2h 46m
ORD5:31 pmChicago O'Hare Intl
American Airlines
May 30
ORD6:55 amChicago O'Hare Intl
2h 41m
DEN8:36 amDenver Intl
Jun 4
DEN12:19 pmDenver Intl
2h 32m
ORD3:51 pmChicago O'Hare Intl
American Airlines
May 31
ORD9:45 pmChicago O'Hare Intl
2h 48m
DEN11:33 pmDenver Intl
Jun 7
DEN7:21 amDenver Intl
2h 40m
ORD11:01 amChicago O'Hare Intl

Frontier flights from Chicago to Denver

Our best Frontier deals on Chicago to Denver flight tickets
Frontier
May 25
ORD6:00 amChicago O'Hare Intl
3h 02m
DEN8:02 amDenver Intl
May 29
DEN8:22 pmDenver Intl
2h 30m
ORD11:52 pmChicago O'Hare Intl
Frontier
May 28
ORD6:00 amChicago O'Hare Intl
3h 02m
DEN8:02 amDenver Intl
Jun 2
DEN8:22 pmDenver Intl
2h 37m
ORD11:59 pmChicago O'Hare Intl
Frontier
May 25
ORD6:00 amChicago O'Hare Intl
3h 02m
DEN8:02 amDenver Intl
Jun 2
DEN8:22 pmDenver Intl
2h 37m
ORD11:59 pmChicago O'Hare Intl

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?

The cheapest month to fly to Denver from Chicago is in September. Flight prices, which tend to average around $152, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in September, then you should wait until November to fly from Chicago, when ticket prices are also cheap, with an average price of $157.

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 $217. 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 $292.

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 $175. Flights at noon are often more expensive with an average ticket price of $298.

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 13 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $205 when searching 13 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 $169 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 April 2025, prices for Chicago to Denver flights are approximately 63% 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

$38

Fastest flight time

2h 34m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Chicago in the past 72 hours is $38. The best round-trip flight deal from Chicago to Denver found on momondo in the last 72 hours is $78.
The fastest flight from Chicago to Denver takes 2h 34m
Direct flights go from Chicago to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

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

    At 2h 34m, 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 $78. A train from Chicago to Denver is more expensive than a flight, with prices starting at $236. A bus from Chicago to Denver is also an option, with an average price of $263.

  • How far is Chicago to Denver Intl by plane?

    Chicago and Denver Intl are 917.4 mi apart from one another. 2h 34m is a normal flight duration for this route.

  • What is the carbon footprint of flying from Chicago to Denver Intl?

    The carbon footprint of a Chicago to Denver Intl flight is around 773lb, which may vary slightly based on airline and stops. There is a CO2 sorter on our flight search results to help you select the lowest possible footprint. Choosing a train for this journey would reduce your carbon footprint from 773lb to 193lb - that is, by about 75%. Although it takes longer, opting for a bus over an airplane would reduce the carbon footprint of your trip to about 122lb.

  • 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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $45Free CancellationRating
6.0
3,281 reviews
Search Frontier flights
American AirlinesPriceFrom $146Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $153Free CancellationRating
7.4
8,667 reviews
Search United Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
  • Southwest Flights From Chicago to Denver

    Southwest is one of the most popular airlines flying from Chicago to Denver, operating 66 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 $268. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From Chicago to Denver

    Across 8,667 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Chicago to Denver about 61 times each week, with ticket deals ranging from $153 to $292. Price data is based on momondo searches in the last 72 hours.


Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Estes Park
Breckenridge
Aurora
Black Hawk
Fort Collins
Keystone
Lakewood
Longmont
Cripple Creek
Boulder
Westminster
Manitou Springs
Thornton
Greeley
Winter Park
Sterling
Silverthorne
Copper Mountain
Golden
Centennial

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.


Choose the best way to get from Chicago to Denver

Buses

20h 30m
$98 one-way$263 round-trip
Nonstop · from $263

Distance to downtown

EN81.3 mi
122lb CO2

84% less than flights

Find Buses

Chicago to Denver Buses

Trains

18h 56m
$83 one-way$236 round-trip
Nonstop · from $236

Distance to downtown

EN81.3 mi
194lb CO2

75% less than flights

Find Trains

Chicago to Denver Trains

Flights

2h 34m
$38 one-way$78 round-trip
Nonstop · from $78

Distance to downtown

DEN18.5 mi

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.

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1 adult
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mar. 4/22
mar. 4/29

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