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Cheap flights from Denver to Chicago from $66

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 2/14. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:26 pm - 10:56 pm
DEN
-
ORD
2h 30mnonstop
Frontier Logo
7:50 pm - 9:49 pm
ORD
-
DEN
2h 59mnonstop
$97Frontier
vie., ene. 9 - lun., ene. 12
Frontier Logo
2:57 pm - 6:31 pm
DEN
-
ORD
2h 34mnonstop
Frontier Logo
8:00 am - 5:49 pm
ORD
-
DEN
10h 49m1 stop
$107Frontier
jue., ene. 29 - sáb., ene. 31
Frontier Logo
7:30 am - 6:27 pm
DEN
-
ORD
9h 57m1 stop
Frontier Logo
12:07 pm - 2:05 pm
ORD
-
DEN
2h 58mnonstop
$108Frontier
mar., ene. 27 - dom., feb. 1
Frontier Logo
10:48 pm - 10:43 am
DEN
-
ORD
10h 55m1 stop
Frontier Logo
2:30 pm - 4:41 pm
ORD
-
DEN
3h 11mnonstop
$110Frontier
jue., ene. 15 - dom., ene. 18
Frontier Logo
7:35 pm - 11:14 pm
DEN
-
ORD
2h 39mnonstop
Frontier Logo
6:03 pm - 8:07 pm
ORD
-
DEN
3h 04mnonstop
$112Frontier
jue., feb. 12 - dom., feb. 15
Frontier Logo
12:05 am - 12:08 pm
DEN
-
ORD
11h 03m1 stop
Frontier Logo
2:30 pm - 4:41 pm
ORD
-
DEN
3h 11mnonstop
$113Frontier
vie., ene. 16 - dom., ene. 18
Frontier Logo
2:57 pm - 6:31 pm
DEN
-
ORD
2h 34mnonstop
Frontier Logo
2:53 pm - 12:19 pm
ORD
-
DEN
22h 26m1 stop
$116Frontier
jue., ene. 22 - mar., ene. 27
Frontier Logo
7:26 pm - 10:56 pm
DEN
-
ORD
2h 30mnonstop
Frontier Logo
10:07 pm - 11:58 pm
ORD
-
DEN
2h 51mnonstop
$118Frontier
vie., ene. 9 - dom., ene. 11
Frontier Logo
6:00 am - 10:36 pm
DEN
-
ORD
15h 36m1 stop
Frontier Logo
7:50 pm - 9:49 pm
ORD
-
DEN
2h 59mnonstop
$121Frontier
sáb., ene. 10 - lun., ene. 12
Frontier Logo
7:10 am - 10:57 am
DEN
-
ORD
2h 47mnonstop
Frontier Logo
9:00 am - 7:54 am
ORD
-
DEN
23h 54m1 stop
$122Frontier
vie., feb. 6 - lun., feb. 9

Frontier flights from Denver to Chicago O'Hare Intl Airport

Our best Frontier deals on Denver to Chicago O'Hare Intl Airport flight tickets
Frontier
Jan 9
DEN7:26 pmDenver Intl
2h 30m
ORD10:56 pmChicago O'Hare Intl
Jan 12
ORD7:50 pmChicago O'Hare Intl
2h 59m
DEN9:49 pmDenver Intl
$97
Find similar
Frontier
Jan 29
DEN2:57 pmDenver Intl
2h 34m
ORD6:31 pmChicago O'Hare Intl
Jan 31
ORD8:00 amChicago O'Hare Intl
10h 49m
1 stop
DEN5:49 pmDenver Intl
$107
Find similar
Frontier
Jan 27
DEN7:30 amDenver Intl
9h 57m
1 stop
ORD6:27 pmChicago O'Hare Intl
Feb 1
ORD12:07 pmChicago O'Hare Intl
2h 58m
DEN2:05 pmDenver Intl
$108
Find similar

United Airlines flights from Denver to Chicago O'Hare Intl Airport

Our best United Airlines deals on Denver to Chicago O'Hare Intl Airport flight tickets
United Airlines
Dec 31
DEN6:00 amDenver Intl
2h 44m
ORD9:44 amChicago O'Hare Intl
Jan 1
ORD8:45 amChicago O'Hare Intl
2h 50m
DEN10:35 amDenver Intl
$157
Find similar
United Airlines
Dec 31
DEN6:00 amDenver Intl
2h 44m
ORD9:44 amChicago O'Hare Intl
Jan 10
ORD12:53 pmChicago O'Hare Intl
2h 58m
DEN2:51 pmDenver Intl
$176
Find similar
United Airlines
Jan 1
DEN6:00 amDenver Intl
2h 44m
ORD9:44 amChicago O'Hare Intl
Jan 1
ORD9:40 pmChicago O'Hare Intl
2h 58m
DEN11:38 pmDenver Intl
$227
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated diciembre 22, 2025.
Use the filters below to find and compare flights from Denver to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DenverChicago

DEN - ORD

DENORD

Denver Intl

vie. 1/9

7:26 pm-10:56 pm

Nonstop2h 30m

Chicago O'Hare Intl

lun. 1/12

7:50 pm-9:49 pm

Nonstop2h 59m

$97

DenverChicago

DEN - ORD

DENORD

Denver Intl

jue. 1/29

2:57 pm-6:31 pm

Nonstop2h 34m

Chicago O'Hare Intl

sáb. 1/31

8:00 am-5:49 pm

1 stop10h 49m

$107

DenverChicago

DEN - ORD

DENORD

Denver Intl

mar. 1/27

7:30 am-6:27 pm

1 stop9h 57m

Chicago O'Hare Intl

dom. 2/1

12:07 pm-2:05 pm

Nonstop2h 58m

$108

DenverChicago

DEN - ORD

DENORD

Denver Intl

jue. 1/15

10:48 pm-10:43 am

1 stop10h 55m

Chicago O'Hare Intl

dom. 1/18

2:30 pm-4:41 pm

Nonstop3h 11m

$110

DenverChicago

DEN - ORD

DENORD

Denver Intl

jue. 2/12

7:35 pm-11:14 pm

Nonstop2h 39m

Chicago O'Hare Intl

dom. 2/15

6:03 pm-8:07 pm

Nonstop3h 04m

$112

DenverChicago

DEN - ORD

DENORD

Denver Intl

vie. 1/16

12:05 am-12:08 pm

1 stop11h 03m

Chicago O'Hare Intl

dom. 1/18

2:30 pm-4:41 pm

Nonstop3h 11m

$113

DenverChicago

DEN - ORD

DENORD

Denver Intl

jue. 1/22

2:57 pm-6:31 pm

Nonstop2h 34m

Chicago O'Hare Intl

mar. 1/27

2:53 pm-12:19 pm

1 stop22h 26m

$116

DenverChicago

DEN - ORD

DENORD

Denver Intl

vie. 1/9

7:26 pm-10:56 pm

Nonstop2h 30m

Chicago O'Hare Intl

dom. 1/11

10:07 pm-11:58 pm

Nonstop2h 51m

$118

DenverChicago

DEN - ORD

DENORD

Denver Intl

sáb. 1/10

6:00 am-10:36 pm

1 stop15h 36m

Chicago O'Hare Intl

lun. 1/12

7:50 pm-9:49 pm

Nonstop2h 59m

$121

DenverChicago

DEN - ORD

DENORD

Denver Intl

vie. 2/6

7:10 am-10:57 am

Nonstop2h 47m

Chicago O'Hare Intl

lun. 2/9

9:00 am-7:54 am

1 stop23h 54m

$122

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Denver to Chicago O'Hare Intl Airport

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 cheapest month to fly to Chicago O'Hare Intl Airport?

The month of August is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Denver averaging around $216.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $327. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Denver because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $580.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Denver in the evening is the least expensive time of day to depart. momondo users have found prices as low as $207 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $679. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Denver Intl to Chicago O'Hare Intl flight route?

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

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Denver when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $242 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Denver for as low as $201 on momondo.

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

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

How have Denver to Chicago O'Hare Intl Airport flight prices changed over time?

As of December 2025, prices for Denver to Chicago O'Hare Intl Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Denver to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Denver to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Denver to Chicago O'Hare Intl Airport (DEN to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Denver to Chicago O'Hare Intl Airport

Best Price Found

$134

Fastest flight time

2h 23m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Denver in the past 72 hours is $134. The best round-trip flight deal from Denver to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $246.
The fastest flight from Denver to Chicago O'Hare Intl Airport takes 2h 23m
Direct flights go from Denver to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Denver Intl to Chicago O'Hare Intl by plane?

    The distance between Denver Intl and Chicago O'Hare Intl is about 903.7 mi. Typically, this will take 2h 23m by plane in normal conditions.

  • When did momondo last update prices for flights from Denver Intl Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Denver Intl Airport to Chicago O'Hare Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Denver Intl Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Denver Intl Airport to Chicago O'Hare Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Denver Intl Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The required travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Chicago O'Hare Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Denver to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Denver to Chicago O'Hare Intl Airport?

Best airlines flying from Denver to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Denver to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $64Free CancellationRating
5.8
3,076 reviews
Search Frontier flights
SouthwestPriceFrom $156Free CancellationRating
8.0
4,252 reviews
Search Southwest flights
American AirlinesPriceFrom $156Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
9,102 reviews
Search United Airlines flights

  • Southwest Flights From Denver to Chicago O'Hare Intl Airport

    Southwest operates around 5 flights from Denver to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been $264, but momondo users have found Southwest deals from Denver to Chicago O'Hare Intl Airport from as low as $156 round-trip. Southwest has been scored 8.0/10 in 4,252 reviews.

  • United Airlines Flights From Denver to Chicago O'Hare Intl Airport

    $162 is the best United Airlines flight deal from Denver to Chicago O'Hare Intl Airport found on momondo over the last 72 hours. The average United Airlines ticket price found was closer to $294, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,102 user reviews) flies into Chicago O'Hare Intl Airport from Denver 68 times in an average week so prices can vary.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
Schaumburg
South Haven
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Janesville
Tinley Park
Aurora
Elgin
Benton Harbor

Why use momondo?

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

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

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

Flights from Denver to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Denver to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Chicago from Denver. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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