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DEN - ORD

$35 Find cheap flights from Denver to Chicago O'Hare Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to O'Hare Intl departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Mon 6/17
Mon 6/24

Search hundreds of travel sites at once for deals on flights to Chicago O'Hare Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Chicago, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Chicago, as well as popular online travel agencies
In the last 7 days travelers have searched 42,332,103 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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Filter your dealsChoose cabin class, free Wi-Fi and more.

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Cheap flight deals from Denver to O'Hare Intl (DEN-ORD)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
4:43 pm - 8:21 pmDEN-ORD
2h 38mnonstop
6:48 pm - 8:32 pmORD-DEN
2h 44mnonstop
$58Frontier
Find Deal
Tue, Sep 10 - Wed, Sep 11
9:10 pm - 12:40 amDEN-ORD
2h 30mnonstop
10:11 pm - 12:05 amORD-DEN
2h 54mnonstop
$60Frontier
Find Deal
Tue, Jun 11 - Sat, Jun 15
9:41 pm - 1:13 amDEN-ORD
2h 32mnonstop
8:30 pm - 9:55 amORD-DEN
14h 25m1 stop
Wed, May 29 - Fri, May 31
1:10 pm - 7:10 pmDEN-ORD
5h 00m1 stop
6:00 am - 7:40 amORD-DEN
2h 40mnonstop
Thu, Jul 18 - Tue, Jul 30
7:21 am - 10:55 amDEN-ORD
2h 34mnonstop
8:34 pm - 10:11 pmORD-DEN
2h 37mnonstop
$165American Airlines
Find Deal
Mon, Jul 1 - Fri, Jul 5
5:37 pm - 11:33 amDEN-ORD
16h 56m1 stop
8:25 pm - 4:19 pmORD-DEN
20h 54m1 stop
$185Sun Country Air
Find Deal
Wed, Jun 26 - Fri, Jun 28
6:40 pm - 7:26 pmDEN-ORD
23h 46m1 stop
5:35 pm - 4:32 pmORD-DEN
23h 57m1 stop
$192Sun Country Air
Find Deal
Thu, Jun 27 - Tue, Jul 2
12:40 am - 7:32 amDEN-ORD
5h 52m1 stop
9:20 am - 1:29 pmORD-DEN
5h 09m1 stop
$200Delta
Find Deal
Wed, Jun 26 - Tue, Jul 2
7:12 am - 10:45 amDEN-ORD
2h 33mnonstop
1:33 pm - 3:07 pmORD-DEN
2h 34mnonstop
$217American Airlines
Find Deal
Thu, Jul 11 - Mon, Jul 15
6:00 am - 3:01 pmDEN-ORD
8h 01m1 stop
9:20 am - 1:29 pmORD-DEN
5h 09m1 stop
$225Delta
Find Deal
Mon, Jul 1 - Tue, Jul 2

Flights from Denver to O'Hare Intl - Travel Insights & Trends

Get data-powered insights and trends into flights from Denver to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Chicago O'Hare Airport?

The average price of all flights from Denver to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Chicago O'Hare Airport on a Wednesday and more expensive on a Sunday. On your return trip to Denver, you should consider flying back on a Wednesday, and avoid Sundays for better deals.

What is the cheapest month to fly from Denver to Chicago O'Hare Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Denver to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Denver to Chicago O'Hare Intl Airport is April, where tickets cost $156 on average. On the other hand, the most expensive months are December and November, where the average cost of tickets is $346 and $342 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Denver to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Denver to Chicago O'Hare Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 45 days before departure.

Which airlines provide the cheapest flights from Denver to Chicago O'Hare Airport?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, Frontier offered the best one-way deal for that route, at $35. KAYAK users also found Denver to Chicago O'Hare Airport round-trip flights on Frontier from $58 and on American Airlines from $165.

Which airlines fly non-stop between Denver and Chicago O'Hare Intl Airport?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Denver to Chicago O'Hare Intl Airport.
There are 4 airlines that fly nonstop from Denver to Chicago O'Hare Intl Airport. They are: American Airlines, Frontier, Southwest and United Airlines. The cheapest price of all airlines flying this route was found with Frontier at $25 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Denver and Chicago O'Hare Intl Airport per day?

Each day, there are between 21 and 27 nonstop flights that take off from Denver and land in Chicago O'Hare Intl Airport, with an average flight time of 2h 30m. The most common departure time is 11:00 am and most flights take off in the morning. Each week, there are 179 flights. The most frequent day of departure is Friday, when 15% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Denver and Chicago O'Hare Intl Airport?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Denver to Chicago O'Hare Airport take?

A direct flight to Chicago O'Hare Airport will take on average 2h 25m to travel the 886 miles flying distance from Denver.

What’s the earliest departure time from Denver to Chicago O'Hare Airport?

Early birds can take the earliest flight from Denver at 6:00 am and will be landing in Chicago O'Hare Intl Airport at 9:35 am.

What’s the latest departure time from Denver to Chicago O'Hare Airport?

If you prefer to fly at night, the latest flight from Denver to Chicago O'Hare Intl Airport jets off at 9:41 pm and lands at 1:13 am.

Good to know

Low season

February

High season

May

Cheapest flight

$35
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Denver to Chicago O'Hare Airport

When to book flights from Denver to O'Hare Intl

Are your dates flexible? Find out the best times to travel from Denver to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Denver to Chicago O'Hare Airport flights

  • Does DEN have good places to sleep inside the airport?

    There are several spots in the airport to sleep, such gates A56-70 and the far end of concourse A. These areas have chairs without armrests that you can stretch out on. Additionally, when you move towards the other side of the concourse, there are 8 massage chairs. Near the entrance of the lounges on the third floor, there are a number of mini beds and resting chairs. Close to gates C26-28 on concourse C, you will find come curved couches. Another area with armrest-free chairs is terminal A and in the Jeppesen Terminal.

  • What are my transport options when at DEN?

    If you're traveling to one of the hotels near the airport, you can use the shuttle services that run between the hotels and the airport. If you want to board one, go to the outside doors 505-507 at level 5 of the Jeppesen Terminal. Limousine services are also available though you need to make prior arrangements. There are public trains which are cheaper than any other means of transport. the routes available are 169L, 145X, AT, AB and AA. The final option is the taxi and shared-ride services which are the fastest way to get to Denver city center.

  • Are there salon and spa services at ORD?

    If you are looking for massages, facials, and more, go to gate H6 or H1 of terminal 3 or gate B12 of terminal 1 to find the Terminal Gateway Spa. Alternatively, head over to gate M10 of terminal 5 orf the XpressSpa. If you are looking for a barber shop, you can find one between the parking garage and terminal 2.

  • Which airport lounges are available at ORD?

    You can decide to abandon the less comfortable waiting chairs in the terminals for more comfort at the Air France VIP lounge at gate M7 at terminal 5. Another accessible lounge is the American Airlines Admirals Club on concourses L, K/H, and G in terminal 1. The Swissport Lounge is found close to gates M8 and M7 in terminal 5 with the United Club being on concourses F and C in terminal 1 and on concourse B in terminal 2. Additionally, the Delta Sky Club is available at gate E6 on concourse E of terminal 2. The USO lounge can be found at the ticket counter area for Northwest in the mezzanine level of terminal 2 and mezzanine level at rotunda in terminal 3.

  • What is the cheapest flight from Denver to Chicago O'Hare Intl Airport?

    In the last 3 days, the lowest price for a flight from Denver to Chicago O'Hare Intl Airport was $35 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between Denver and Chicago O'Hare Airport?

    A passport is not required to fly from Denver to Chicago O'Hare Airport.

  • Which airports will I be using when flying from Denver to Chicago O'Hare Airport?

    When flying out of Denver you will be using Denver Intl. You will be landing at Chicago O'Hare Airport, also known as Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from Denver to Chicago O'Hare Airport?

    American Airlines, JetBlue, Delta, Lufthansa, and United Airlines offer inflight Wi-Fi service on the Denver to Chicago O'Hare Airport flight route.

  • Which aircraft models fly most regularly from Denver to Chicago O'Hare Airport?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Denver to Chicago O'Hare Airport flight route.

  • Which airline alliances offer flights from Denver to Chicago O'Hare Airport?

    oneworld, and Star Alliance are the airline alliances operating flights between Denver and Chicago O'Hare Airport, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Denver to Chicago O'Hare Airport?

    There are nonstop flights from Denver to Chicago O'Hare Airport on a daily basis.

  • Which is the best airline for flights from Denver to Chicago, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Denver to Chicago are Delta and United Airlines. With an average price for the route of $229 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $313 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Chicago O'Hare Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Chicago O'Hare Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Chicago O'Hare Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago O'Hare Airport from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Chicago O'Hare Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago O'Hare Airport with an airline and back to Denver with another airline. Booking your flights between Denver and ORD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Chicago O'Hare Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago O'Hare Airport from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Denver to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $107 or less one-way and $224 or less round-trip.
  • There are a number of charging stations at Chicago O'Hare Airport (ORD) ideal for charging laptops and phones, they can be found in terminals 5, 3, 2, and 1. In the gate areas, there are built-in power outlets on the individual seats.
  • Head on to the arrival level of terminal 5 and gates C18 and B7 of terminal 1 in ORD to make inquiries at the information desks.
  • If you want to post some letters from the airport, you’ll find mailboxes at terminals 5, 3, 2 and 1 at ORD.
  • Duty-free shopping is available at Denver International Airport (DEN) at the mezzanine and center core areas of gate B and the center core of gate A. You will find a number of different shops.
  • Each of the concourses at DEN has a water bottle filling station where you can quench your thirst for free. Make sure to take a refillable bottle with you.
See more tips

Prefer to fly non-stop from Denver to Chicago O'Hare Airport?

Find which airlines fly direct from Denver Intl to O'Hare Intl, which days they fly and book direct flights.

Nonstop departures

Denver Intl to Chicago O'Hare Intl

Monday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Thursday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Friday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Saturday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

Sunday

Aer Lingus, Air Canada, American Airlines, +18 more

Aer Lingus, Air Canada, +19 more

See more direct flights

Nonstop returns

Chicago O'Hare Intl to Denver Intl

Monday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Tuesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Wednesday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Thursday

Aer Lingus, Air Canada, American Airlines, +16 more

Aer Lingus, Air Canada, +17 more

Friday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Saturday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

Sunday

Aer Lingus, Air Canada, American Airlines, +17 more

Aer Lingus, Air Canada, +18 more

See more direct flights
See more direct flights

Top 5 airlines serving from Denver to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from Denver to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10662 reviews
7.9Comfort
8.2Boarding
7.4Food
8.0Entertainment
8.6Crew
Airline reviews

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

6.0 GoodLane, May 2024MEM - LAX
Read more about Delta reviews

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

The 1st class male crew member was very pleasant - the short female with round glasses , maybe in 50’s had no personality- never spoke when delivering my food, drink, & never smiled the whole trip! In fact looked annoyed when the boarding proses was happening- I would never hire this woman - unfriendly . Have never dealt with a crew member like her-

5-hour delay due to storms in Tanoa and airspace restricted by Miami traffic controllers.

A regional sized plane was used for a cross country flight with no overhead bin space. I had to "pink check" my laptop and my medications. I was NOT pleased!!!!

Absolutely nothing flight was cancelled and delayed for 2 days. Barely a heads up I want a full refund

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Best airline! Always friendly and welcoming. Skyclub was great and loved the fast free wifi on board. I also love that you can pre-order your meal on the app!

Atlanta boarding crew at gate were filled with arrogance and were disrespectful. In flight crew showed indifference to the needs of passengers. This is about the flight from ATL to BDL.

Boarding was somewhat chaotic. Unable to evaluate crew or food/drink because captain kept them seated due to turbulence. Have no idea if entertainment was offered.

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

I was told we'd have a hot breakfast option in first class, so I chose not get a hot breakfast. It was a very strange meal, but the fresh fruit was very good quality. Service was excellent from ORD to ELP. No service from MBS to ORD, not even water. However, when flying American from FNT to ORD, which is a shorter flight, they at least pass out snacks and offer water.

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

The CX617 from HK to BKK was delayed more than 1.5 hours.

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Crew was nice, explained emergency protocol very well. Flight took off and arrived on time. Pilot explained the small delay that occurred with docking and providing updates. I would definitely fly spirit again.

The seat are terrible. Don’t even think of sleeping on a Spirit flight. The kids that run the plane aka flight attendants are pretty rude and straight forward. They get the job done but without class.

I had a death in my family and booked my flight on Spirit. My flight was cancelled the morning of my flight, no explanation, no help to rebook, nobody to talk to. The next available flight was 2days later !!!! Terrible airline, will NEVER fly with them again!

They took a horrible route with a lot of turbulence and I eneded up getting sick. Even if the flight takes longer. Don't put people life at risk just to get to the airport on time.

Every thing was fine ,low price,easy on time ,clean, good staff, really no issues

Had to board plan 2x due to lack of security check after 1st boarding

Miserable. The crew was rude, the flight was delayed 5 hours for mechanical reasons and then “weather” even though other planes were leaving.

They kept Changing the flight times. It was delayed several times and at one point it was supposed to depart at 3.40am! At which point we ended up staying overnight and booked long a separate United flight for early morning departure. The spirit flight then got moved up and left at 1.30 in the morning when it was supposed to leave at 9.40pm the night before.

Flight was delayed...not horribly late. Just before push back engine shut down for a quick replacement item that took about five minutes. After that, everything was smooth and the pilot was able to make up time in the air so that our arrival time was not too far off the original anticipated arrival time.

Only inflight purchases for food and water. Nothing comes with ticket price. Have to purchase bags, food...

Fecal matter in seat back pocket. Presumably from a kids diaper.

I didn't get to do this flight l, hard to review

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Left Denver late, then sat on tarmac 30 min after arrival

Everything was good, 20/30 minutes late waiting on a crew member. It’s hard to keep employees. Or serious employees I know. I remember one flight from Houston of Frontiers was almost 18 hours late. And another 4 hours late very poor. But I would rather be late and safe than the on the news. Thank you.

Bought seats on the flight and they were supposed to be 2 and a jumpseat. Plane clearly changed and it was a regular 3 seat row. Asked for a refund and was denied. If I wanted to sit next to someone else I wouldn't have bought the seats..

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

It’s a cheap airline and I wish if they had better seats.

Seats are cramped and uncomfortable. You have to pay for everything and it is very expensive.

For a busy travel season, everything was clearly marked, correct, and smooth. My favorite travel description is “UNEVENTFUL,” and this trip met the mark!

Book cheap flights from Denver to Chicago

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Denver to Chicago found on KAYAK in the last 72 hours.
6/4Tue
nonstopFrontier
2h 38mDEN-ORD
$35
6/8Sat
nonstopFrontier
2h 35mDEN-ORD
$37
6/13Thu
1 stopSun Country Air
5h 51mDEN-ORD
$57
6/17Mon
1 stopSun Country Air
7h 51mDEN-ORD
$67
6/17Mon
1 stopDelta
5h 52mDEN-ORD
$98
6/10Mon
1 stopDelta
6h 09mDEN-ORD
$99
7/19Fri
nonstopUnited Airlines
2h 31mDEN-ORD
$113
8/15Thu
1 stopUnited Airlines
5h 53mDEN-ORD
$122
5/23Thu
nonstopAmerican Airlines
2h 29mDEN-ORD
$159
5/26Sun
1 stopAmerican Airlines
6h 36mDEN-ORD
$167

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Last minute flights from Denver to O'Hare Intl

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Denver to Chicago that are departing in the next 10 days.
5/22Wed
nonstopFrontier
2h 32mDEN-ORD
5/29Wed
nonstopFrontier
2h 51mORD-DEN
$110
5/22Wed
nonstopFrontier
2h 32mDEN-ORD
6/5Wed
nonstopFrontier
2h 57mORD-DEN
$116
5/21Tue
nonstopUnited Airlines
2h 30mDEN-ORD
5/21Tue
nonstopUnited Airlines
2h 47mORD-DEN
$321
5/22Wed
multi-stopUnited Airlines
6h 34mDEN-ORD
5/29Wed
multi-stopUnited Airlines
7h 07mORD-DEN
$329
5/22Wed
multi-stopDelta
4h 33mDEN-ORD
5/25Sat
multi-stopDelta
6h 37mORD-DEN
$359
5/23Thu
multi-stopDelta
5h 41mDEN-ORD
5/27Mon
multi-stopDelta
4h 59mORD-DEN
$387
5/19Sun
nonstopSouthwest
2h 30mDEN-ORD
5/21Tue
nonstopSouthwest
2h 45mORD-DEN
$405
5/19Sun
nonstopSouthwest
2h 25mDEN-ORD
5/21Tue
multi-stopSouthwest
5h 35mORD-DEN
$414
5/21Tue
nonstopAmerican Airlines
2h 28mDEN-ORD
5/21Tue
nonstopAmerican Airlines
2h 42mORD-DEN
$436
5/21Tue
multi-stopAmerican Airlines
6h 20mDEN-ORD
5/21Tue
nonstopAmerican Airlines
2h 54mORD-DEN
$444

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Denver - Chicago O'Hare Airport Flights

Departure:

Denver (undefined)United States

Destination:

Chicago O'Hare Airport (ORD)United States

Return flight deals:

Chicago O'Hare Airport - Denver

Cabin classes:

$513
$1,856
$863
$81