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

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Chicago O'Hare Intl to Denver Flight Information

Avg. Flight Duration 2h 37m
Flights Arrive in Denver Intl
Flights Depart from Chicago O'Hare Intl
Flight Price $69
Distance 886 miles
Airlines Spirit Airlines, Frontier, United Airlines, American Airlines, Delta

Good to Know

Low Season:
January
Best time to beat the crowds
3%
expected price decrease
High Season:
July
Most popular time to fly
26%
expected price increase
Average Price:
$143
(avg. price over the last 2 weeks)
Good Deal:
$97
or less (round trip)

When to Book Flights from Chicago O'Hare Intl to Denver

Estimated round-trip price
Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top Tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $96 or less.
The cheapest flight from Chicago O'Hare Intl to Denver was found 61 days before departure, on average.
Book at least 2 weeks before departure in order to get a below-average price.
High season is considered to be June, July and August. The cheapest month to fly is January.
Morning departure is around 35% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Chicago O'Hare Intl to Denver Flights

How long does a flight from Chicago O'Hare Intl to Denver take?
An average nonstop flight takes 2h 34m, covering a distance of 886 miles.
How many flights are there between Chicago O'Hare Intl and Denver?
There are 835 (nonstop) flights between Chicago O'Hare Intl and Denver per week, averaging 117 per day.
Which airlines provide the cheapest flights from Chicago O'Hare Intl to Denver?
In the past 3 days, the cheapest round-trip tickets were found on Spirit Airlines ($69), Frontier ($83) and United Airlines ($89).
Do I need a passport to fly between Chicago O'Hare Intl and Denver?
No.
Which airlines fly most frequently between Chicago O'Hare Intl and Denver?
United Airlines (25 times daily), Air Canada (19 times daily), American Airlines (12 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Chicago O'Hare Intl to Denver?
For Chicago O'Hare Intl to Denver, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Denver back to Chicago O'Hare Intl, the best deals are generally found on Wednesday, with Tuesday being the most expensive.

Book cheap flights from Chicago O'Hare Intl to Denver (round-trip)

Airports
Origin
Chicago
$69
only
$69
Destination
Denver
$69
only
$69
Tue, Apr 30
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 43m
Wed, May 1
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 31m
Trip: 2 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 2.0

Cons: I was unable to catch my flight because of Spirit's unreasonable polocies. On paper it seems like a good airline, but in practice there's a lot of dissapointment.

ORD
DEN
Mediocre 2.0

Pros: Watching people argue with spirit staff! Kept me entertained for my 2 hour delay...

Cons: How rude and unapologetic the spirit staff was. It was their only instinct in response to their lack of knowledge to the situation.

ORD
DEN
Excellent 10.0

Pros: Super stoked about the seat I was in

ORD
DEN
Excellent 8.0

Pros: No problems

Cons: A little behind

ORD
DEN
Mediocre 2.0

Pros: nothing

Cons: Flight was delayed, Woman had an intact male Pit bull as a service dog ( therapy dog). The dog acted up 3 times in waiting area I do not know why they would let that dog in the cabin?

Mon, Apr 29
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 55m
Wed, May 1
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 31m
Trip: 3 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Excellent 8.4

Pros: Steamboat Springs, CO There were many CUBS fans on this flight! Good to leave rainy Chicago & arrive in dry Denver! Even though the plane was late, I was still able to catch my Alpine Taxi to Steamboat!

Cons: There should be a way to know when the bathroom is available!

ORD
DEN
Mediocre 2.0

Pros: Flight was cancelled for no reason. Please refund me.

ORD
DEN
Mediocre 2.0

Pros: Nothing

Cons: Delays, gate changes, lack of notification, last minute changes.

ORD
DEN
Mediocre 2.0

Pros: Nothing

Cons: 5-6 hour delay to board. delay leaving the terminal. All the gates were full when we landed, had to wait on the tarmac nearly an hour for a gate to open. Bags took forever. Frontier might be the most poorly managed company going right now.

ORD
DEN
Mediocre 2.0

Cons: Terrible service from Denver. Missed flight due to Frontier check in desks being overwhelmed. Was there two hours early, told to go to outside curbside check in. Terrible delays when returning to Denver on the plane. Was held on the aircraft for 40 minutes before they could get us off. Bad experience. Won't be flying frontier again.

Tue, May 7
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 37m
Wed, May 8
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 2 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 209 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
DEN
Okay 4.0

Pros: I liked arriving home in a timely fashion.

Cons: The first gate agent responding flatly, "I have NO idea." to a gate change question. OR the Mother Superior flight attendants that couldn't wait to point and nag about seat backs and tray tables. I wonder if either of the women noticed they were talking to someone who wasnt't an English speaker? United needs to fly Southwest to learn the right way to do things.

ORD
DEN
Good 6.6

Pros: Had no problems!

Cons: Seats were very uncomfortable and very tight.

ORD
DEN
Good 7.6

Pros: Overall the flight was good - crew were excellent

Cons: Very surprised that you had to pay for alcoholic drinks on the flight - as a frequent flier, this was a first on a transatlantic flight

ORD
DEN
Good 7.6

Cons: internet & movies intermittently worked

ORD
DEN
Mediocre 2.0

Cons: Flight attendants were inconsiderate and rude about using the lavatory. Boarding process felt disorganized and chaotic and the planed ended up needing maintenance. Additionally the smell of gasoline as the flight was taking off seems like it's actually a serious health risk no one is addressing.

Tue, Jun 18
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 34m
Thu, Jun 20
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 41m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 52 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.7
MAD
CLT
Mediocre 3.6

Pros: The crew and the seats were okay.

Cons: The flight was delayed for almost 2 hrs. We should receive credits for that.

ORD
DEN
Okay 4.6

Pros: Pretty standard flight

Cons: Inconvenient timing and overcrowded with obnoxious children sitting on laps. No attempts made to change their behavior by crew or parents.

YYZ
PHL
Excellent 10.0

Pros: The seat was comfortable and the flight attendant was very helpful with all the questions I had, thanks for the wonderful first time flying.

Cons: Nothing give a 10/10

ORD
DEN
Excellent 10.0

Pros: Great service in first class

Cons: N/A

ORD
DEN
Excellent 8.0

Pros: Flight not entirely sold out. So they let my 14 month grandson have an empty seat between my daughter and I. That was a great gift since he doesn't sleep and is jumping and crawling all over the place. And I'm sure the other passengers were breathing sighs of relief!! Also super smooth landing and nice flight attendants.

Cons: Flying with an active 14 month old toddler boy and of his "stuff" is nothing less than anxiety provoking. Not much the airline can do..

Sun, Aug 18
ORD
Chicago O'Hare Intl
DEN
Denver Intl
7h 56m
Wed, Aug 21
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 31m
Trip: 4 days
7.9GoodShow reviews
Overall 7.9 Good
Based on 24,081 reviews
Overall
8.1
Boarding
8.1
Comfort
7.8
Crew
8.5
Entertainment
7.7
Food
7.5
MSP
LGA
Mediocre 2.0

Cons: Flight was cancelled after multiple delays and waiting 8 hours

JFK
LAX
Okay 4.3

Pros: The turkey sandwich was okay.

Cons: I was seated next to an extremely large man. I possessed only half of my seat for the duration of the six hour flight. I asked a flight attendant to move me but she said the flight was full. There should be a protocol for passengers over 300 lbs.

DCA
ATL
Excellent 10.0

Pros: Crew was very kind and entertainment was good when available

Cons: WiFi in all flights

ATL
LAX
Excellent 10.0

Pros: awesome

TLH
ATL
Excellent 9.0

Cons: Perfect travel day! No issues whatsoever

Tue, Apr 30
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 43m
Wed, May 8
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 9 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Good 7.6

Cons: The flight attendants weren’t that friendly

ORD
DEN
Mediocre 3.5

Pros: Staff was friendly

Cons: No leg room and small seats!! I am a 5'5'', 120lb person and I barely fit in the seat and no room to put my legs. Can't imagine what a tall person would feel like!! No apologies for delayed flight and gate changes

ORD
DEN
Good 6.6

Pros: In general everything was pretty good.

Cons: Flight was 1 hour delayed and Boarding crew was sending us from one gate to another. That was so unprofessional.

ORD
DEN
Mediocre 2.0

Cons: On finding that my flight was cancelled, exactly 10 hours before my flight, I cancelled the flight because they didn't have another flight in a similar timeframe (it was just a 24hr trip). I cancelled the flight and they only gave me back credit for another spirit airlines flight that I must purchase in 60 days. They never gave me a reason for the cancellation. I then tried to call into their customer service line, which was completely disconnected (this was the number online and the one they had shared with me via email). Needless to say I will never fly with spirit again.

ORD
DEN
Mediocre 3.3

Pros: We didn't die. Plane was early, which was nice.

Cons: Plane was horrible uncomfortable. Boarding area was crowded to the point of insanity. Seats are so thin I can feel every adjustment of the children behind me. Not even water offered. Spirit upcharges for everything, so it ends up being MORE expensive than competitors. My absolute last time flying this airline.

Mon, Apr 29
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 55m
Tue, Apr 30
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 24m
Trip: 2 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 2.0

Cons: $45 carry on fee Left two hours of late because of multiple plane repairs Boarded and de-boarded twice Poor staff communication I will NOT book with this airline again.

ORD
DEN
Good 6.3

Pros: Crew was very pleasant. We were able to board easily. Like the newer seats that don't take up so much space so there is more leg room.

Cons: Cabin was freezing, until one of the crew came back and adjusted it.

ORD
DEN
Good 6.0

Pros: Overall quickness and friendliness of staff.

Cons: No free food.

ORD
DEN
Mediocre 3.3

Cons: Chairs were uncomfortable and didn't recline. Tray tables were tiny! And didn't even pull closer. no beverage service was offered. Personal passages controlled Lights in cabin were not useful and obnoxious color.

ORD
DEN
Excellent 10.0

Pros: It was very good! I liked it.

Sat, May 11
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 44m
Sat, May 18
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 3.0

Cons: Flight delayed 2 hours. Sat on the plane for an hour of that delay.

ORD
DEN
Good 7.6

Cons: The flight attendants weren’t that friendly

ORD
DEN
Good 6.6

Cons: You have to pay for food and drink which is extremely expensive if you don't bring something with you on the plane

ORD
DEN
Okay 4.5

Cons: My flight was delayed by two hours due to weather, which is not under Spirit's control, but there was little to no communication regarding the delay. The online flight status wasn't updated either throughout the duration of the trip and so my sister, who came to pick me up, was stuck wondering what was going on at the airport for two hours.

ORD
DEN
Good 7.0

Pros: Initially, the price but at the end it was painful

Cons: Three hours delays, round trip, both ways during one day

Wed, May 1
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 37m
Sat, May 11
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 33m
Trip: 11 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 209 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
DEN
Excellent 8.0

Pros: Everyone was really nice, and there was a decent amount of leg room etc.

Cons: I honestly can't say that I have any complaints about it. Thank you. :)

ORD
DEN
Mediocre 2.0

Pros: The fact that priceline said there was nothing they could do.

Cons: The fact that my pregnant wife and i were stranded in la guardia airlort and had to shovel out 800 dollars for last minute one way flights.

ORD
DEN
Mediocre 2.0

Cons: I want to clarify that I boough tiquests with Lufthansa not with United... and I had to travel United most of the time to Africa and Bach to the USA... united socks terrible ... bad food and old plain to cross the Atlantic... besides the service and the bad actitude of the employees... when I travel international I want only Lufthansa. So, kayak you tricked me ....horribly!

ORD
DEN
Mediocre 2.0

Pros: Did not make our flight to dickinson sitting in line in denver to make new flight. Only one flies into dickinson on sun and it's a late one. Will have to fly to different city.

ORD
DEN
Excellent 9.6

Pros: Helpful staff, hilarious video, smooth flight

Tue, Apr 30
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 48m
Sat, May 4
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 24m
Trip: 5 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Okay 5.0

Cons: $45.00 for a bag is rediculous.

ORD
DEN
Excellent 10.0

Pros: Easy flight

Cons: When I booked no option to pay for luggage. Had carry ons. Very expensive. Felt that was a bit of bait and switch. Lots of extra charge for carry on. I would have packed lighter and brought less had it been clear. Cost me an extra $75 each way

ORD
DEN
Mediocre 2.0

Pros: Nothing

Cons: Delays, gate changes, lack of notification, last minute changes.

ORD
DEN
Mediocre 2.0

Cons: I had broke my phone coming from a music festival so i had no way to call them, traffic and construction made me miss my flight by 20 minutes and they would not help me get another flight or refund my money

ORD
DEN
Mediocre 2.0

Cons: The flight was super delayed because Frontier was sharing a gate with another airline...

Tue, May 14
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 44m
Tue, May 21
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 8 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 2.0

Pros: Not one thing

Cons: Seats are awful. No WiFi! No water! Have to pay for water!!? What!! Made me pay for my bag that I took for free with me to Chicago. Never ever

ORD
DEN
Mediocre 2.0

Cons: Spirit Airlines must make all their money on carry-on charges. Although I measured the dimension of my bag, it was slightly outside of fitting in their metal box at check-in, which cost over $50 when it still for in overhead no issues.

ORD
DEN
Mediocre 3.6

Pros: Nothing except the price

Cons: Delayed boarding

ORD
DEN
Mediocre 2.0

Pros: Nothing. I was treated so poorly I walked away from their customer service and bought a ticket on another airline.

Cons: I was 5 minutes late over their 45 minute required check in window. So they cancelled my ticket. For $100 they offered to reschedule me. And for another $50 they would check my bag. On a different airline I paid another $100 and got a complete round trip ticket, about 10 minutes later.

ORD
DEN
Mediocre 2.6

Cons: Flight was 2 hours late because we were waiting on a pilot to show up I used KIOSK to check in and husband and I wound up not sitting together...staff not able to help They charge for everything....even water.... Flight attendant on two occasions complained about his long day...boo hoo for him This was the flight from hell.....I am not sure I want to fly again....but, if I ever do...it won't be with Spirit

Sun, May 5
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 35m
Sat, May 11
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 33m
Trip: 7 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 209 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
DEN
Mediocre 2.0

Pros: Did not make our flight to dickinson sitting in line in denver to make new flight. Only one flies into dickinson on sun and it's a late one. Will have to fly to different city.

ORD
DEN
Excellent 10.0

Pros: New, clean United planes! Happy crew! Snacks!

ORD
DEN
Good 7.6

Pros: Friendly crew.

Cons: Passengers are stowing personal items/multiple bags in the overhead bins. This is an ongoing problem that needs attention. Armrest protocol should be made explicit. My in-flight entertainment control was covered by the passenger next to me the entire flight.

ORD
DEN
Okay 4.0

Pros: The flight attendant finally took care of it after I complained a couple of times.

Cons: That you changed our seats, and, that there was no room in any of the overhead bins. So, the flight attendant told me that I needed to fight my way through the people coming toward me back up the aisle and check every overhead bin all the way back up to see if there was room for my one suitcase. Others had brought more than one bag up there. Finally they checked my one carry on bag. The ride was also really bumpy, worst that we've ever experienced. But that was due to weather conditions.

ORD
DEN
Excellent 8.0

Pros: The boarding and check-in process was quick and seamless. The crew was attentive, friendly, and informative. Ohare airport has Garters popcorn!!!!

Cons: Seating was a little cramped, even for a small guy like me, and the only way to watch anything on the small screens provided on seats in front of you, is to pay. Honestly, I know that everything is about the bottom line, but you can at least provide 1 free movie or Channel and charge for optional premium material.

Fri, May 3
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 53m
Sat, May 11
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 9 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Good 6.6

Pros: It was cheap. The boarding was smooth. It wasn't overbooked. There was space for my carryon. Crew was nice. Was on time.

Cons: No free beverage. Small seats and no leg room. Not happy about the carryon charge but whatever.

ORD
DEN
Mediocre 2.0

Pros: I am sitting at the gate 4 hours delayed

Cons: Nothing what a disaster

ORD
DEN
Mediocre 2.0

Cons: I haven't even left yet my flight has been delayed for 5 hours. No updates on flight status and all in all its been a stressful endeavor.

ORD
DEN
Mediocre 2.0

Pros: Nothing was positive while using Frontier Airlines

Cons: Everything was pretty unpleasant: 1.) hidden baggage fees ($45 round trip would be one thing for a CHECKED BAG, but $90 collectively for the round trip is FRAUDULENT) Especially when most airlines don't charge for carry on bags or it's at least calculated in the final cost. At first when I booked this trip with FRONTIER $180 for my tickets looked like a decent deal, UNTIL I WAS TOLD AT THE COUNTER THAT I HAVE TO PAY $45 each way for a FRIGGIN CARRY ON BAG!! turning my reasonable and anticipated $180 trip turned into almost a $300 (NEARLY doubled my cost!) had I known I could have at least packed more into a checked bag for that price. 2.) my flight was delayed 4 hours on my outgoing flight, cutting into my personal time off and no compensation or even a kind gesture like a free McDonald's sandwich when you land...you guys really have poor quality and seem like you don't really care about the paying customer 3.) staff seemed clueless and didn't know how to answer customers questions as to why our flight was delayed!! 4.) mechanical issues with plane were the cause, or at least that's what the copilot or captain Just HAD TO MENTION TO US RIGHT BEFORE TAKEOFF, causing everyone to stir and raise eyebrows. 5.) to top off him mentioning the mechanical issues they were having with the plane the flight was rough..I've never been more tense or anxious on any of the other 30+ flights I've taken in my life. Pilot didn't seem to know how to handle turbulence.

ORD
DEN
Mediocre 2.0

Cons: Terrible service from Denver. Missed flight due to Frontier check in desks being overwhelmed. Was there two hours early, told to go to outside curbside check in. Terrible delays when returning to Denver on the plane. Was held on the aircraft for 40 minutes before they could get us off. Bad experience. Won't be flying frontier again.

Tue, May 21
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 44m
Wed, May 29
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 9 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 2.0

Pros: We arrived

Cons: Two hour delay with no reason why which is a really big deal when you arrive at your destination at 1 in the morning and you need to be up to baptize a child at 8 the next morning.

ORD
DEN
Mediocre 3.3

Cons: Canceled my flight at the first hint of weather, next available was 24 hours later. To their credit, the ticket counter crew was quick to refund my money.

ORD
DEN
Mediocre 2.6

Cons: Flight was 2 hours late because we were waiting on a pilot to show up I used KIOSK to check in and husband and I wound up not sitting together...staff not able to help They charge for everything....even water.... Flight attendant on two occasions complained about his long day...boo hoo for him This was the flight from hell.....I am not sure I want to fly again....but, if I ever do...it won't be with Spirit

ORD
DEN
Mediocre 2.0

Cons: My laptop was stolen out of my bag that I checked.

ORD
DEN
Mediocre 2.0

Cons: Sitting at gate for 30 min unable to exit plane. Nightmare

Mon, May 6
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 38m
Sat, May 11
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 33m
Trip: 6 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 209 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
DEN
Okay 4.3

Cons: My boarding pass was not scanning which was holding up the line. A second person came over to approve me getting on the plane. That person made me check the size of my carry on bag, which had gotten bigger from some things I purchased in the airport but was just a touch too large for their sizer. She attempted to check the bag meaning I wouldn't have it until my final destination, which I was NOT ok with for two reasons. One was i had a 3 hour layover after this flight and needed work materials inside. The second was i was on a time crunch to get my ride at my final destination and was only traveling with carry on. She was very rude and insitant on it fitting inside the sizer as she stood over me with the tag to check my bag. I managed to take some things out that I moved into my backpack, which meant I had to awkwardly carry my blanket and travel pillow onto the plane. The most frustrating part was when I got on the plane, it was oversized top carryon bins, so the extra inch my bag grew would have been fine. Because of the time it took me to rearrange, i was the last one on the plane and all the bins had been filled with tiny second bags, but a few people on the plane had seen what happened and they rearranged a space for me. Also my video screen was broken and everyone else's worked. And there were two screaming babies around me the whole flight, but that is no one's fault.

ORD
DEN
Excellent 10.0

Pros: Very windy decent into denver but pilots and crew were great.

ORD
DEN
Excellent 10.0

Pros: It was Great Thank you

ORD
DEN
Excellent 8.0

Pros: Everyone was really nice, and there was a decent amount of leg room etc.

Cons: I honestly can't say that I have any complaints about it. Thank you. :)

ORD
DEN
Mediocre 2.0

Cons: I want to clarify that I boough tiquests with Lufthansa not with United... and I had to travel United most of the time to Africa and Bach to the USA... united socks terrible ... bad food and old plain to cross the Atlantic... besides the service and the bad actitude of the employees... when I travel international I want only Lufthansa. So, kayak you tricked me ....horribly!

Mon, Apr 29
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 55m
Mon, May 6
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 18m
Trip: 8 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Mediocre 2.0

Cons: Terrible information and no service.

ORD
DEN
Mediocre 2.0

Cons: My return flight over the holidays was booked for the incorrect day and time, even though my email confirmation had the correct days.

ORD
DEN
Mediocre 2.0

Cons: I haven't even left yet my flight has been delayed for 5 hours. No updates on flight status and all in all its been a stressful endeavor.

ORD
DEN
Excellent 10.0

Pros: everything went just as planned, everyone with Frontier was on point

ORD
DEN
Excellent 8.5

Pros: Clean, efficient, cheap. Brand new aircraft.

Cons: Ridiculously bare-bones plane. Seats don't recline. Tray table is insanely small - barely big enough to hold a Coke that the flight crew charges you $2 for.

Tue, May 7
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 37m
Sat, May 11
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 33m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 209 reviews
Overall
7.3
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.5
Food
6.5
ORD
DEN
Excellent 10.0

Pros: Fast boarding and friendly staff.

ORD
DEN
Mediocre 2.0

Pros: .

Cons: Each flight we booked for our holidays had issues. 4 seperate flights and not one which we were please with. Late departures on syper hot planes, staff not present for boarding planes in time, complications with paperwork pertainig to the plane delaying flight/computer glitches. Not a good experience. We paid nearly tripple for our flights for the convenience of not having to drive to denver....we will never do that again

ORD
DEN
Okay 4.0

Pros: The flight attendant finally took care of it after I complained a couple of times.

Cons: That you changed our seats, and, that there was no room in any of the overhead bins. So, the flight attendant told me that I needed to fight my way through the people coming toward me back up the aisle and check every overhead bin all the way back up to see if there was room for my one suitcase. Others had brought more than one bag up there. Finally they checked my one carry on bag. The ride was also really bumpy, worst that we've ever experienced. But that was due to weather conditions.

ORD
DEN
Excellent 8.3

Cons: It’s just crowded. The crew was great. Safe landing

ORD
DEN
Mediocre 2.6

Cons: How they canceled one of my flights just as I landed at my layover for that flight when I look back at Boston they had a direct flight ready for my destination. Very poor management I was stuck in Chicago with no money or food for hours then after they start boarding for my new flight they tell me that I may not be able to get on even with ticket in hand. It was a joke and very stressful

Wed, May 8
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 44m
Tue, May 21
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 34m
Trip: 14 days
5.2OkayShow reviews
Overall 5.2 Okay
Based on 356 reviews
Overall
5.8
Boarding
6.1
Comfort
5.4
Crew
6.5
Entertainment
4.6
Food
4.7
ORD
DEN
Excellent 9.3

Pros: The flight was great. Came and left on time both to and from.

Cons: There was not anything I did not like about my trip.

ORD
DEN
Poor 0.0

Cons: We were unable to catch this flight due to flight delay in Panama City. We are STILL at the airport in Fort Lauderdale waiting to get home.

ORD
DEN
Mediocre 3.3

Cons: I think charging for water is absurd.

ORD
DEN
Mediocre 2.0

Pros: nothing

Cons: Flight was delayed, Woman had an intact male Pit bull as a service dog ( therapy dog). The dog acted up 3 times in waiting area I do not know why they would let that dog in the cabin?

ORD
DEN
Okay 4.3

Pros: Everything is at an extra cost. From snacks to luggage to picking your seat.

Fri, May 3
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 53m
Sat, May 4
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 37m
Trip: 2 days
5.4OkayShow reviews
Overall 5.4 Okay
Based on 284 reviews
Overall
6.0
Boarding
6.4
Comfort
5.4
Crew
6.8
Entertainment
4.6
Food
4.7
ORD
DEN
Excellent 8.0

Cons:

ORD
DEN
Mediocre 2.0

Pros: We got delayed because the plane broke down. Everyone else got $100 credit, but I didn't because I booked through Kayak. Could you please give me the credit?

ORD
DEN
Mediocre 2.0

Pros: Nothing

Cons: 5-6 hour delay to board. delay leaving the terminal. All the gates were full when we landed, had to wait on the tarmac nearly an hour for a gate to open. Bags took forever. Frontier might be the most poorly managed company going right now.

ORD
DEN
Mediocre 2.0

Cons: Terrible service from Denver. Missed flight due to Frontier check in desks being overwhelmed. Was there two hours early, told to go to outside curbside check in. Terrible delays when returning to Denver on the plane. Was held on the aircraft for 40 minutes before they could get us off. Bad experience. Won't be flying frontier again.

ORD
DEN
Okay 4.0

Cons: We were delayed by 1hr and 45 min because a flight atttendant was not at the airport.

Sun, Sep 15
ORD
Chicago O'Hare Intl
DEN
Denver Intl
2h 34m
Tue, Sep 17
DEN
Denver Intl
ORD
Chicago O'Hare Intl
2h 23m
Trip: 3 days
7.3GoodShow reviews
Overall 7.3 Good
Based on 52 reviews
Overall
7.4
Boarding
7.5
Comfort
7.2
Crew
7.9
Entertainment
6.8
Food
6.7
ORD
DEN
Good 6.5

Pros: The crew was amazing - agreeing to work extra because it was Christmas eve and they wanted us all to get to our destinations for Christmas. They were very gracious and helpful.

Cons: We were over an hour late to leave. I understand the reason for the delay because of weather. What I was disappointed in is that the delay was not announced until our actual scheduled time to leave. It meant people coming to pick me up didn't get the change information in a timely manner.

ORD
DEN
Mediocre 3.3

Pros: They showed American ninja warrior.

Cons: Everything. The flight was delayed greatly even though the plane got to Chicago only slightly late. Then they make us board and just sit in the plane for an hour. Then finally we start moving, the plane is uncomfortably hot even with the air blowing on me, the flight attendants look like they hate their life, it was honestly horrible and I will never fly with American Airlines EVER again.

DFW
ELP
Excellent 10.0

Pros: On time

CDG
PHL
Mediocre 2.0

Pros: Nothing

Cons: Everything

ORD
DEN
Excellent 10.0

Pros: Flight crew had a great sense of humor - they were extra friendly while boarding as well, made traveling with AA the best! Boarding was delayed due to previous flight but our pilot even managed to get us to Denver early! Wish I could have this crew everywhere I go!

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