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Cheap flights from Denver to Chicago from $90

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 5/18. 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

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Frontier Logo
9:00 pm - 2:07 pm
DEN
-
ORD
16h 07m
1 stop
Frontier Logo
3:27 pm - 9:25 am
ORD
-
DEN
18h 58m
1 stop
$175Frontier
Fri, Apr 17 - Tue, Apr 21
Frontier Logo
4:59 pm - 8:37 pm
DEN
-
ORD
2h 38mnonstop
Frontier Logo
9:42 pm - 11:52 pm
ORD
-
DEN
3h 10mnonstop
$176Frontier
Thu, May 21 - Mon, May 25
Frontier Logo
4:59 pm - 8:37 pm
DEN
-
ORD
2h 38mnonstop
Frontier Logo
9:42 pm - 11:52 pm
ORD
-
DEN
3h 10mnonstop
$177Frontier
Thu, Jun 4 - Sun, Jun 7
Frontier Logo
3:45 pm - 11:22 pm
DEN
-
ORD
6h 37m
1 stop
Frontier Logo
8:58 pm - 3:59 am
ORD
-
DEN
8h 01m
1 stop
$178Frontier
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
6:00 am - 12:13 pm
DEN
-
ORD
29h 13m
1 stop
Frontier Logo
5:20 am - 9:27 am
ORD
-
DEN
29h 07m
1 stop
$179Frontier
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
3:45 pm - 11:22 pm
DEN
-
ORD
6h 37m
1 stop
Frontier Logo
4:28 pm - 10:29 pm
ORD
-
DEN
7h 01m
1 stop
$180Frontier
Fri, Apr 24 - Mon, Apr 27
Frontier Logo
4:34 pm - 11:40 pm
DEN
-
ORD
6h 06m
1 stop
Frontier Logo
3:35 pm - 9:45 pm
ORD
-
DEN
7h 10m
1 stop
$181Frontier
Wed, Apr 8 - Sat, Apr 11
Frontier Logo
5:15 pm - 8:53 pm
DEN
-
ORD
2h 38mnonstop
Frontier Logo
5:29 pm - 11:47 pm
ORD
-
DEN
7h 18m
1 stop
$182Frontier
Wed, Jul 8 - Fri, Jul 10
Frontier Logo
6:15 am - 9:50 am
DEN
-
ORD
2h 35mnonstop
Frontier Logo
8:58 pm - 8:00 pm
ORD
-
DEN
24h 02m
1 stop
$183Frontier
Fri, Apr 17 - Tue, Apr 21
Frontier Logo
5:15 pm - 8:53 pm
DEN
-
ORD
2h 38mnonstop
Frontier Logo
9:48 pm - 11:54 pm
ORD
-
DEN
3h 06mnonstop
$184Frontier
Fri, Jul 17 - Tue, Jul 21

Southwest flights from Denver to Chicago O'Hare Intl Airport

Our best Southwest deals on Denver to Chicago O'Hare Intl Airport flight tickets
Southwest
Apr 15
DEN11:25 amDenver Intl
2h 35m
ORD3:00 pmChicago O'Hare Intl
Apr 21
ORD10:30 amChicago O'Hare Intl
2h 45m
DEN12:15 pmDenver Intl
$201
Southwest
Apr 25
DEN10:50 amDenver Intl
2h 30m
ORD2:20 pmChicago O'Hare Intl
Apr 28
ORD10:30 amChicago O'Hare Intl
2h 45m
DEN12:15 pmDenver Intl
$209
Southwest
Apr 15
DEN11:25 amDenver Intl
2h 35m
ORD3:00 pmChicago O'Hare Intl
Apr 21
ORD6:15 amChicago O'Hare Intl
7h 50m
1 stop
DEN1:05 pmDenver Intl
$211

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
Apr 17
DEN9:00 pmDenver Intl
16h 07m
1 stop
ORD2:07 pmChicago O'Hare Intl
Apr 21
ORD3:27 pmChicago O'Hare Intl
18h 58m
1 stop
DEN9:25 amDenver Intl
$175
Frontier
May 21
DEN4:59 pmDenver Intl
2h 38m
ORD8:37 pmChicago O'Hare Intl
May 25
ORD9:42 pmChicago O'Hare Intl
3h 10m
DEN11:52 pmDenver Intl
$176
Frontier
Jun 4
DEN4:59 pmDenver Intl
2h 38m
ORD8:37 pmChicago O'Hare Intl
Jun 7
ORD9:42 pmChicago O'Hare Intl
3h 10m
DEN11:52 pmDenver Intl
$177

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 March 22, 2026.
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

Cheapest round-trip

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 4/17

9:00 pm-2:07 pm

1 stop16h 07m

Chicago O'Hare Intl

Tue 4/21

3:27 pm-9:25 am

1 stop18h 58m

$175

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 5/21

4:59 pm-8:37 pm

Nonstop2h 38m

Chicago O'Hare Intl

Mon 5/25

9:42 pm-11:52 pm

Nonstop3h 10m

$176

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 6/4

4:59 pm-8:37 pm

Nonstop2h 38m

Chicago O'Hare Intl

Sun 6/7

9:42 pm-11:52 pm

Nonstop3h 10m

$177

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 4/24

3:45 pm-11:22 pm

1 stop6h 37m

Chicago O'Hare Intl

Mon 4/27

8:58 pm-3:59 am

1 stop8h 01m

$178

DenverChicago

DEN - ORD

DENORD

Denver Intl

Thu 4/16

6:00 am-12:13 pm

1 stop29h 13m

Chicago O'Hare Intl

Mon 4/20

5:20 am-9:27 am

1 stop29h 07m

$179

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 4/24

3:45 pm-11:22 pm

1 stop6h 37m

Chicago O'Hare Intl

Mon 4/27

4:28 pm-10:29 pm

1 stop7h 01m

$180

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 4/8

4:34 pm-11:40 pm

1 stop6h 06m

Chicago O'Hare Intl

Sat 4/11

3:35 pm-9:45 pm

1 stop7h 10m

$181

DenverChicago

DEN - ORD

DENORD

Denver Intl

Wed 7/8

5:15 pm-8:53 pm

Nonstop2h 38m

Chicago O'Hare Intl

Fri 7/10

5:29 pm-11:47 pm

1 stop7h 18m

$182

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 4/17

6:15 am-9:50 am

Nonstop2h 35m

Chicago O'Hare Intl

Tue 4/21

8:58 pm-8:00 pm

1 stop24h 02m

$183
Quickest round-trip

DenverChicago

DEN - ORD

DENORD

Denver Intl

Fri 7/17

5:15 pm-8:53 pm

Nonstop2h 38m

Chicago O'Hare Intl

Tue 7/21

9:48 pm-11:54 pm

Nonstop3h 06m

$184

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 September is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Denver averaging around $227.

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 Thursday when prices can be found for as low as $305. 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 $579.

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 $209 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $604. 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 $254 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 $199 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 March 2026, prices for Denver to Chicago O'Hare Intl Airport flights are approximately 8% more expensive 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

$158

Fastest flight time

2h 29m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Denver in the past 72 hours is $158. The best round-trip flight deal from Denver to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $263.
The fastest flight from Denver to Chicago O'Hare Intl Airport takes 2h 29m
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 29m 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 $75Free CancellationRating
5.7
3,020 reviews
Search Frontier flights
JetBluePriceFrom $126Free CancellationRating
7.2
2,911 reviews
Search JetBlue flights
SouthwestPriceFrom $155Free CancellationRating
8.0
4,324 reviews
Search Southwest flights
American AirlinesPriceFrom $157Free CancellationRating
7.1
11,485 reviews
Search American Airlines flights
United AirlinesPriceFrom $162Free CancellationRating
7.4
9,459 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 $261, but momondo users have found Southwest deals from Denver to Chicago O'Hare Intl Airport from as low as $155 round-trip. Southwest has been scored 8.0/10 in 4,324 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 $307, however, with flight time and availability significantly affecting the price. United Airlines (7.4/10 from 9,459 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
Rosemont
Naperville
New Buffalo
Orland Park
Kenosha
Oak Brook
Joliet
Janesville
Racine
Hammond
Aurora
Elgin
Tinley Park
South Holland

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.

An easier way to manage your Chicago O'Hare Intl Airport trip

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