Find Cheap Flights from Denver to Chicago O'Hare Intl (DEN - ORD)

Cons: A toilet had no water. The internet was not working for the whole flight

Cons: The hardest thing about any air travel is cramp seats in coach. That being said, AA makes the best of your cramp quarters with free online movies and television, and a power outlet for your cell on the headrest in front of you, which is so convenient and makes up for the tight seating!

Pros: Seat was not comfortable

Cons: Need more room

Pros: American

Pros: The people were friendly and you can't beat the price.

Cons: The trip out was late, but that was because of weather, so no biggie. But on the return trip, we sat on the tarmac for over an hour because of "boarding gate problems". There was a loud beeping noise for the entire hour we waited and only one announcement was made to explain the situation. At some point we were finally allowed to exit the plane onto the runway (not the boarding platform).

Pros: Nothing.

Cons: My flight was delayed 7 hours. I never recieved an e-mail letting me know of this even though I gave my email when I bought the tickets so that I would get updates on the flight. I checked the flight status before leaving my house at 2am and the flight was still on time. After driving 2 hours to the airport and going through security I found out that my flight was being delayed 7 hours and no representative was even at the gate to speak with. All I was given was one $14 meal voucher which didn’t even cover a full meal at the airport. It’s told that the issue was mechanical but I later found out that te first flight had been over booked and the 1pm flight didn’t have enough people on it so they made everyone on at 6am flight wait until 1pm to fly out. Once on the plane, the seats were hard and uncomfortable and the plane was cold. I am extremely disasiflied and will never use Spirit again.

Pros: Crew was very nice and attendant that did the announcements was hilarious. No idea about food or entertainment because there wasn’t any. 2 hour flight.

Cons: NO TSA PRE-CHECK!! That’s a dealbreaker Seats didn’t recline

Pros: Price, on time departure/ arrival. Easy boarding, courteous service.

Cons: No complimentary soft drink, tight seating, small plane

Pros: Nothing

Cons: Over 5 hour delay and no accommodation. We received a lousy $10 food voucher yet everything in the airport is at least $12. Never flying Frontier again.

Pros: Got to Chicago safely

Cons: Flight was two hours late. One of the flight attendants was hard to understand and cut her sentences short and giggled a lot. No explanation for delay. I asked a flight attendant why so late. "Delayed out of Chicago". Plan made s terrible rattling noise on takeoff.

Pros: I liked absolutely nothing about Frontier airlines. If there was a 0 star option, that's what I'd rate it. From the moment I got to the kiosk to check in and the screen said that I hadn't paid for my checked and carry on bag even though I had the night previous, to the atrocious customer service at the counter where the desk agent kept demanding that I put my bag on the scale even though another passenger's bag was in the way and she was doing nothing to move it, to me the 2 hour delay departing from a Denver, an additional hour waiting on the tarmac in Chicago with the flight attendants being snarky with passengers who were becoming restless and wanting to retrieve personal items-- it suffices to say that I will NEVER fly this airline again. It took an additional 45 minutes to retrieve checked baggage. I was fooled by the seemingly reasonable fair. I would prefer to pay double what I payed for this flight simply to never have to experience atrociously uncomfortable seats and extremely rude flight attendants (I asked for a second glass of water, to which she responded "I must service the other customers first" and I understood that, but once beverage service was over, she spent an hour talking to and laughing with the other flight attendants and then 30 mins before landing strolled over with an additional glass of water for me. NEVER AGAIN!

Pros: Nothing

Cons: Flight cancelled without an option to rebook until 2 days later. Very poor customer service and refund policy. Had to pay full price for a new flight on another airline.

Cons: Entertainment app/WiFi was down. Apparently a know issue on this plane for over a week. Staff didn’t announce, you had to ask.

Cons: Both my arrival and departure were 45 minutes delayed and this wasn’t communicated to anyone. The screen was never updated at the gate either time and reflected the previous flights information causing confusion to people trying to make sure they were at the right gate.

Cons: First time flying this airline, it was great! Will definitely fly with them again.

Cons: Crew was not friendly or kind - acted burnt out and burdened

Cons: Mechanical delay where the flight attendant kept saying "ten more minute" but it took nearly two hours. Don't overpromise and under deliver. Then we pushed back and got stuck on run way for another hour.

Pros: United representatives were friendly.

Cons: TSA at Denver was the worst I have ever experienced in all my years of flying - they closed down lanes despite incredibly long lines winding around the entire floor of of the security areas, their staff was rude and the lines moved incredibly slowly - mostly because they seemed understaffed and unconcerned with anything other than themselves.

Pros: Everything.

Cons: Got to the airport and my reservation was not existent despite receiving confirmation. As well, my wife's TSA pre-check was not available on her ticket and this made us almost late.

Pros: Price, without a doubt.

Cons: Random seating unless you pay. High prices to buy a seat next to your spouse, child, etc. Water for sale only. Expensive bag prices for smaller bags. To be honest it was everything you should expect for the price you pay, but it should be more than apparent via other sites exactly what you are getting (or not getting).

Pros: On time

Cons: Seats pitch very uncomfortable. Hate paying for carry on. Landed at O'Hare to a series of steps, 3 flights with the carry on I paid for. Had to get off plane outside.

Cons: Wouldn't let us change or cancel our flight a couple days in advance, even for a death in the family.

Cons: They canceled my flight and did not have another one until the next day. I booked with American and had a great flight.

Pros: I know it's some sort of miracle. But there was only 40 people on an airbus. We all had about 3 seats each and we made full beds for ourselves.

Cons: Delays! Numerous delays! No assistance to help with changing missed connections or getting a hotel while stuck in Chicago.

Cons: Seats sucked hard no give. Cramed in like cattle

Cons: Flight was cold-air blowing that I could not turn off

Pros: Price was nice. I am quite tall so I also paid to upgrade my seat so the extra leg room was great.

Cons: The website, app, and customer service from their 800 number is absolutely terrible. I don’t know if I’ll fly Spirit again due to the lack of user experience on their site/app and the difficulty I had trying to upgrade my seat both online and over the phone. Everything else was as expected- no frills. No food, drink, carryon, etc.. unless you pay for it.

Cons: They canceled my flight and did not have another one until the next day. I booked with American and had a great flight.

Pros: The Crew

Cons: The Flight was delayed 7 hours

Pros: Good flight.

Pros: The crew was nice and they were apologetic. I know it wasn't their fault. They gave status updates every 15 minutes but in the end they were generally 'wrong'. Some people were angry about this but it wasn't their fault. How could it be? They were just repeating what they were told. It's not their fault that their organizers told them incorrect stuff. I sympathized with them more than I usually would because some passengers were such jerks to them. I appreciate that they were keeping us in the loop. We basically knew as much as they knew. It made me feel like we were all in this bad situation together, which we were. They wanted to get home, too. That was the right way to handle this. The actual flight was uneventful. Plane was clean. Seats were about as comfortable as you would expect for the price.

Cons: Where to begin. It was delayed 1.5 hours, then we boarded, waited maybe 30 minutes, then we UNBOARDED because they needed a new plane, then it was delayed AGAIN. When we finally landed in Chicago we were about 5 hours behind schedule. I feel bad for the crew because they were left dealing with angry passengers, I know it wasn't their fault. Just poor corporate planning. In addition I did have a truly mind boggling experience with an employee. We were lined up for our first boarding, in a huge line, having waited for 1.5 hours, and suddenly a woman with multiple bags cut in line. I said "Excuse me ma'am but there IS a line" and she smiled and said "Oh, sorry, I'm an employee". I apologized and she cut everyone and boarded. That's when I realized that she was NOT WORKING THE FLIGHT. She was just using her privilege to cut in line. She cut in front and saved maybe 5 minutes. I mean, why bother. Why bother pissing off paying customers to save 5 minutes. People around me were so angry. Then she got on the flight and held everything up because she needed to load her 4 pieces of luggage into the overhead bin, taking up an entire bin. Flight crew actually moved people's bags to accommodate her. And one of her bags was a full sized suitcase that would never have been allowed if she wasn't an employee. Simply ridiculous, the only thing saving her was that there were open seats. She was not taking a seat from a paying customer. I would say that I wouldn't fly Frontier again but honestly all of the companies suck so I don't know who to pick. Every airline has some story or another of crappy customer service. I wish the barrier for entry wasn't so high so that competitors could swoop in....as much as I dislike the Elon Musk's of the world it would be great if some billionaire swooped in with their money and made an airline that actually worked.

Cons: This was one of the worst flights I've ever taken with perhaps the most apathetic crew I've ever encountered. My departure flight was delayed endlessly–including a 2 hour wait on the tarmac for a gate at my destination. The crew provided almost no information or updates. And the lack of legroom was unhealthy. Also, I was not informed during booking that I'd be charged for a carry-on. That added $70 to my ticket plus seat selection charges.

Cons: Cancelled and left on my own to find another flight

Pros: Got to Chicago safely

Cons: Flight was two hours late. One of the flight attendants was hard to understand and cut her sentences short and giggled a lot. No explanation for delay. I asked a flight attendant why so late. "Delayed out of Chicago". Plan made s terrible rattling noise on takeoff.

Cons: Late late late and no information shared about why.

Pros: I liked the flight attendants that they were courteous and helpful

Cons: I am a fearful flyer and that is putting it mildly. I didn't like that the pilot didn't introduce himself and talk to us about the flight.

Cons: Boarded and left late for many to miss connections. No real help to get to new connection both on plane and off.

Pros: The staff was friendly and the boarding was orderly

Cons: The economy seats were so squished and everything from movies to food (other than Chex mix) is an additional fee. I'm a small person and still felt like the personal space and leg room was way smaller than it should be. I had to pay $8 to watch cable bc otherwise you just have to look at a screen with ads on it the whole flight. I used to love united. Now I feel like it just sneaks in extra charges like all of the cheap airlines. Not going out of my way to look for united anymore.

Pros: Price was nice. I am quite tall so I also paid to upgrade my seat so the extra leg room was great.

Cons: The website, app, and customer service from their 800 number is absolutely terrible. I don’t know if I’ll fly Spirit again due to the lack of user experience on their site/app and the difficulty I had trying to upgrade my seat both online and over the phone. Everything else was as expected- no frills. No food, drink, carryon, etc.. unless you pay for it.

Pros: Price, without a doubt.

Cons: Random seating unless you pay. High prices to buy a seat next to your spouse, child, etc. Water for sale only. Expensive bag prices for smaller bags. To be honest it was everything you should expect for the price you pay, but it should be more than apparent via other sites exactly what you are getting (or not getting).

Pros: Crew was very nice and attendant that did the announcements was hilarious. No idea about food or entertainment because there wasn’t any. 2 hour flight.

Cons: NO TSA PRE-CHECK!! That’s a dealbreaker Seats didn’t recline

Pros: The Crew

Cons: The Flight was delayed 7 hours

Pros: The crew was nice and they were apologetic. I know it wasn't their fault. They gave status updates every 15 minutes but in the end they were generally 'wrong'. Some people were angry about this but it wasn't their fault. How could it be? They were just repeating what they were told. It's not their fault that their organizers told them incorrect stuff. I sympathized with them more than I usually would because some passengers were such jerks to them. I appreciate that they were keeping us in the loop. We basically knew as much as they knew. It made me feel like we were all in this bad situation together, which we were. They wanted to get home, too. That was the right way to handle this. The actual flight was uneventful. Plane was clean. Seats were about as comfortable as you would expect for the price.

Cons: Where to begin. It was delayed 1.5 hours, then we boarded, waited maybe 30 minutes, then we UNBOARDED because they needed a new plane, then it was delayed AGAIN. When we finally landed in Chicago we were about 5 hours behind schedule. I feel bad for the crew because they were left dealing with angry passengers, I know it wasn't their fault. Just poor corporate planning. In addition I did have a truly mind boggling experience with an employee. We were lined up for our first boarding, in a huge line, having waited for 1.5 hours, and suddenly a woman with multiple bags cut in line. I said "Excuse me ma'am but there IS a line" and she smiled and said "Oh, sorry, I'm an employee". I apologized and she cut everyone and boarded. That's when I realized that she was NOT WORKING THE FLIGHT. She was just using her privilege to cut in line. She cut in front and saved maybe 5 minutes. I mean, why bother. Why bother pissing off paying customers to save 5 minutes. People around me were so angry. Then she got on the flight and held everything up because she needed to load her 4 pieces of luggage into the overhead bin, taking up an entire bin. Flight crew actually moved people's bags to accommodate her. And one of her bags was a full sized suitcase that would never have been allowed if she wasn't an employee. Simply ridiculous, the only thing saving her was that there were open seats. She was not taking a seat from a paying customer. I would say that I wouldn't fly Frontier again but honestly all of the companies suck so I don't know who to pick. Every airline has some story or another of crappy customer service. I wish the barrier for entry wasn't so high so that competitors could swoop in....as much as I dislike the Elon Musk's of the world it would be great if some billionaire swooped in with their money and made an airline that actually worked.

Pros: Nothing

Cons: Flight staff was rude. Especially the older blonde lady. Seems like she hates her job and I heard her cuss at a passenger and tell a child to shut up

Pros: I liked the stewardess. She was nice.

Cons: I pay for my ticket and then there is fees for days!!! Charge me what you will for the ticket but all these after fees are disgusting. You should be ashamed for yourself Frontier you filthy animal...

Cons: Took over 30 minutes to get my checked bag.

Pros: The flight attendant

Cons: United in general

Cons: Seemed like a newer plane that had a lot less leg room than my previous flight. I'm pretty short and I was uncomfortable.

Pros: Nothing

Cons: Delayed flight caused me to miss connection and there was no wheelchair waiting for me as requested.

Cons: Delays! Numerous delays! No assistance to help with changing missed connections or getting a hotel while stuck in Chicago.

Pros: The Crew

Cons: The Flight was delayed 7 hours

Pros: Noting

Cons: no room on plane, Baggage cost to much. Could not check bags until after 4 AM in Denver so had to sit at front of airport until boarding no time for breakfast after long drive.

Pros: Nothing.

Cons: My flight was delayed 7 hours. I never recieved an e-mail letting me know of this even though I gave my email when I bought the tickets so that I would get updates on the flight. I checked the flight status before leaving my house at 2am and the flight was still on time. After driving 2 hours to the airport and going through security I found out that my flight was being delayed 7 hours and no representative was even at the gate to speak with. All I was given was one $14 meal voucher which didn’t even cover a full meal at the airport. It’s told that the issue was mechanical but I later found out that te first flight had been over booked and the 1pm flight didn’t have enough people on it so they made everyone on at 6am flight wait until 1pm to fly out. Once on the plane, the seats were hard and uncomfortable and the plane was cold. I am extremely disasiflied and will never use Spirit again.

Pros: My trip was fine, nothing outstanding, nothing horrible.

Cons: The flight was 2 hours late taking off. That is a bummer especially since you have to be at the airport 2 hours early. Spirit did extend a $50 travel voucher towards a future trip but I would have rather arrived at my destination on time. Luggage fees are pricey...$50 each way for a checked bag. OUCH!

Cons: Some passangers were not charges for carry on bags but I was charged $45 for a small carry on bag.

Pros: Nothing

Cons: Flight cancelled without an option to rebook until 2 days later. Very poor customer service and refund policy. Had to pay full price for a new flight on another airline.

Pros: Low cost

Cons: They make you pay for everything. Even peanuts. No entertainment.

Cons: The flight was delayed which I wasn't alerted about and the gate was also switched gates without alerting us.