CVG - DEN

$43 Find Cheap Flights from Cincinnati to Denver

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Cincinnati to Denver departing on 6/7. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Denver

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cincinnati to Denver.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Cincinnati to Denver.
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Everything you should know

Cheapest round-trip
$142
Typical prices: $338-$178
Frontier
Wed 5/13Sat 5/16
CVG - DEN • Non-stop
Cheapest one-way
$43
Typical prices: $138-$289
Allegiant Air
Sun 6/7
CVG - DEN • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
Southwest's two free checked bags save on luggage fees.
Use Southwest's EarlyBird Check-In for better seating.
Expert advice
Expert advice
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Top airlines
Cheapest • from $142 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Nonstop flights
You can fly direct with Frontier, Southwest and others. Average duration is 3h 04m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to book
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 23% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 17% price drop
Most popular
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Flight Deals

Cheap Flights from Cincinnati to Denver (CVG-DEN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Cincinnati to Denver 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Cincinnati to Denver

Wed, May 13 - Sat, May 16
Frontier Logo
1:05 pm - 2:18 pm
CVG
-
DEN
3h 13mnonstop
Frontier Logo
7:15 am - 12:00 pm
DEN
-
CVG
2h 45mnonstop
$142Frontier
Sat, May 16 - Tue, May 19
Frontier Logo
5:37 pm - 8:24 am
CVG
-
DEN
16h 47m
1 stop
Frontier Logo
7:10 am - 11:55 am
DEN
-
CVG
2h 45mnonstop
$143Frontier
Mon, May 11 - Wed, May 13
Frontier Logo
12:50 pm - 2:01 pm
CVG
-
DEN
3h 11mnonstop
Frontier Logo
7:15 am - 12:00 pm
DEN
-
CVG
2h 45mnonstop
$145Frontier
Wed, May 20 - Sun, May 31
Frontier Logo
1:05 pm - 2:18 pm
CVG
-
DEN
3h 13mnonstop
Frontier Logo
2:47 pm - 7:31 pm
DEN
-
CVG
2h 44mnonstop
$146Frontier
Fri, May 22 - Thu, May 28
Multiple Airlines Logo
8:36 pm - 9:50 pm
CVG
-
DEN
3h 14mnonstop
Multiple Airlines Logo
1:16 pm - 5:54 pm
DEN
-
CVG
2h 38mnonstop
$147Multiple Airlines
Sat, May 9 - Mon, May 11
Frontier Logo
1:05 pm - 2:18 pm
CVG
-
DEN
3h 13mnonstop
Frontier Logo
6:10 am - 7:35 pm
DEN
-
CVG
11h 25m
1 stop
$148Frontier
Thu, May 21 - Sun, May 24
Allegiant Air Logo
11:21 am - 12:26 pm
CVG
-
DEN
3h 05mnonstop
Allegiant Air Logo
1:16 pm - 5:54 pm
DEN
-
CVG
2h 38mnonstop
$149Allegiant Air
Sat, May 23 - Sun, May 24
Multiple Airlines Logo
12:46 pm - 10:24 pm
CVG
-
DEN
11h 38m
1 stop
Multiple Airlines Logo
1:16 pm - 5:54 pm
DEN
-
CVG
2h 38mnonstop
$150Multiple Airlines
Sat, Jun 6 - Wed, Jun 10
Frontier Logo
8:36 pm - 9:50 pm
CVG
-
DEN
3h 14mnonstop
Frontier Logo
6:30 am - 11:14 am
DEN
-
CVG
26h 44m
1 stop
$151Frontier
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
6:00 am - 7:00 am
CVG
-
DEN
3h 00mnonstop
Allegiant Air Logo
7:50 am - 12:36 pm
DEN
-
CVG
2h 46mnonstop
$152Allegiant Air
Booking Insights

KAYAK's insights & trends for Cincinnati to Denver flights

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

How much is a round-trip flight from Cincinnati to Denver?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Cincinnati to Denver departing in May.

What’s the cheapest day of the week to fly from Cincinnati to Denver?

The average price of all round-trip flights from Cincinnati to Denver clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Denver on a Friday and more expensive on a Tuesday. On your return trip to Cincinnati, you should consider flying back on a Friday, and avoid Sundays for better deals.

What is the cheapest month to fly from Cincinnati to Denver?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Cincinnati to Denver, 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 Cincinnati to Denver is August, where tickets cost $202 (return) on average. On the other hand, the most expensive months are March and December, where the average cost of round-trip tickets is $307 and $306 respectively.

How far in advance should I book a flight from Cincinnati to Denver?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Cincinnati to Denver, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Cincinnati to Denver, you should book around 2 weeks before departure, which saves you about 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Expert advice

Expert advice for your flight from Cincinnati to Denver

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Good to know

Low seasonJanuary
Cheapest flight$43
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Cincinnati to Denver

When to book flights from Cincinnati to Denver

Are your dates flexible? Find out the best times to travel from Cincinnati to Denver 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 flights from Cincinnati to Denver

  • Can you spend a night at Cincinnati Airport if you have an early flight?

    Yes, you can spend the night at the airport, but you can carry warm clothes since the client may not be favorable. You can consider sleeping at the padded benches in concourse B or concourse A in the children's play area.

  • Are there banking services at Denver International Airport?

    Yes, there are banking services offered at the airport. There are ATMs if you need cash, and you should consider checking your bank balance and limit. The Public service credit union provides these ATMs. They are found in concourses A, B and C and Jeppesen terminal.

  • Are there pet facilities at Denver International Airport?

    Yes, there are pet facilities in DEN. If you carry your dog with you for a vacation in Denver, there is a pet resort called Paws Pet Resort. This resort offers services such as daycare, boarding and grooming. Pet relief areas are also located at the center cores of gates A, B and C.

  • Are there hotels you can stay at Denver International Airport after arriving?

    There are hotels near DEN. If you are searching for a hotel next to the airport, you can consider Westin Denver international airport hotel. The hotel is located next to the Jeppesen terminal. There are other hotels near the airport, including Woolley's classic suites and Hampton Inn Denver international airport.

  • What is the cheapest flight from Cincinnati to Denver?

    In the last 3 days, the lowest price for a flight from Cincinnati to Denver was $43 for a one-way ticket and $142 for a round-trip.

  • Do I need a passport to fly between Cincinnati and Denver?

    A passport is not required to fly from Cincinnati to Denver.

  • Which airports will I be using when flying from Cincinnati to Denver?

    Cincinnati airport is called Cincinnati Cinci./N. Kentucky and the only airport in Denver is Denver Intl.

  • Which airlines offer Wi-Fi service onboard planes from Cincinnati to Denver?

    Delta, American Airlines, JetBlue, and Aeromexico offer inflight Wi-Fi service on the Cincinnati to Denver flight route.

  • Which aircraft models fly most regularly from Cincinnati to Denver?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Cincinnati to Denver flight route.

  • Which airline alliances offer flights from Cincinnati to Denver?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Cincinnati and Denver, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Cincinnati to Denver?

    There are nonstop flights from Cincinnati to Denver on a daily basis.

  • Which is the best airline for flights from Cincinnati to Denver, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Cincinnati to Denver are Southwest and Delta. With an average price for the route of $382 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $276 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Cincinnati to Denver?

    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 Cincinnati to Denver.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Denver from Cincinnati 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 Cincinnati to Denver?

    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 Denver with an airline and back to Cincinnati with another airline. Booking your flights between Cincinnati and DEN 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 Cincinnati to Denver?

    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 Denver from Cincinnati up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Cincinnati to Denver

  • Looking for a cheap flight? 25% of our users found flights on this route for $138 or less one-way and $246 or less round-trip.
  • Cincinnati/Northern Kentucky International Airport (CVG) has clean and safe lactating rooms for nursing mothers at terminal A. The rooms have comfortable seats, lockable doors, a fold-down table and lactation outlets. The lactating rooms are equipped with power to help mothers in pumping milk electrically. There are codes to access the lactating rooms, and this ensures security and privacy.
  • If an emergency occurs, audio-visual fire alarms and automated external defibrillators are available all over Cincinnati/Northern Kentucky International Airport. There is also global air rescue which provides emergency medical teams and medical equipment. There is also ground medical transportation if it's needed.
  • A one-site hotel is located in the airport called the Doubletree Hotel by Hilton Cincinnati Airport. The hotel is pet friendly and has a fitness center. The hotel provides a variety of rooms and meals according to your taste. It is a walking distance from the terminals. It offers high standard hygiene measures. The hotel is near the terminal, and because there is noise from the airport, the rooms in the hotel are fitted with soundproof walls to ensure comfort.
  • Denver International Airport (DEN) provides safe rooms for lactating mothers to nurse their kids or pump. Each room contains power outlets, changing tables and comfortable seats. The restrooms are located at Jeppesen terminal and center of gates A, B and C near the women's restrooms.
  • If you are traveling with children, there are play areas in CVG where your child can spend time as you wait for your flight. The play areas are located at concourses A and B. The play areas are fitted with a parking lot for those with vehicles. There is a viewing area for viewing airplanes departures and arrivals. The play areas are equipped with airplane-themed play equipment, which fits the children who love plane activities.

Prefer to fly direct from Cincinnati to Denver?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Cincinnati Cinci./N. Kentucky to Denver Intl.
Find which airlines fly direct from Cincinnati Cinci./N. Kentucky Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Cincinnati Cinci./N. Kentucky to Denver Intl

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Allegiant Air,Frontier,Southwest, +1 more

Allegiant Air,Frontier, +2 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Allegiant Air,Frontier,Southwest, +1 more

Allegiant Air,Frontier, +2 more

See more direct flights

Direct returns

Denver Intl to Cincinnati Cinci./N. Kentucky

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Allegiant Air,Frontier,Southwest, +1 more

Allegiant Air,Frontier, +2 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Allegiant Air,Frontier,Southwest, +1 more

Allegiant Air,Frontier, +2 more

See more direct flights

Reviews of the top 5 airlines serving from Cincinnati to Denver

 
See real verified KAYAK customer reviews for airlines flying from Cincinnati to Denver. 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 Cincinnati to Denver? 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
SouthwestOverall score based on 4316 reviews
7.0Food
7.5Entertainment
8.1Boarding
8.6Crew
8.0Comfort
Airline reviews

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

4.0 OkayCrystal, Apr 2026
MSY - MDW
Read more Southwest reviews

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

First time I've had to use the disabled accommodations. And I could not have had a better experience with Southwest, i was having trouble getting from one terminal to another due to my heart failure. And the next thing I know a Southwest agent had made sure. I had a wheelchair at all my flights. Can't thank them enough.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

This leg was much better, but we did have to have a 3 hour lay o er after coming from a very exhausting hiccup with our flight from BNA to Den

We waited in the airplane for over 45 min for a southwest employee to make the flight. This cause over half the plane to miss their connecting flight in Denver. When we confronted the desk upon arrival, they told us the only flight they had was the next day leaving at 8:50 pm!!! Or they offered to get us to Burbank or LA, but after that we were on our own to get back to Santa Barbara. I paid for a flight from sba to bna bna to sba. My re entry into mom mode has been 💯 rough because of southwest mistake with my flight. And now I’m leaving to Reno tomorrow for a vballl tournament and just discovered that my leg in Vegas has me and my 3 kids on a stand by flight even though I had booked these ticket last year November!! Do better southwest!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

The seat was not comfortable. 1D. My back was sore all night and the next day.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

The entertainment options on the seat back video boards were nice.

The boarding process was straightforward. One pertinent observation regarding all boarding procedures is that if an individual requires assistance or possesses a special status and is part of preboarding, it is advisable to limit the number of passengers who can preboard with them, rather than the entire, sometimes large, companion groups. The seats are uncomfortable, and the entertainment options are significantly inferior compared to other airlines. During the snack service, I requested an additional bag of snacks, but my request was denied. Initially, the flight attendant agreed to my request.becoming a strange accurate moment. The flight duration was four hours.

I had a cancelled flight because of technical issues going to my destination, and a delayed flight coming home. All told it wasn’t a total bust.

During landing. 2 crew members passed 3 times by my lane and didn't notice that people in front of us had their site to the furthermore reclined... That was uncomfortable and could have been dangerous.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

It’s always a great time flying with united airlines.

We got delayed three hours and nobody thought to have the bathroom fixed while we were sitting waiting to board? took a full hour to have maintenance come and check it off. Had to shut the bathroom down twice so that the pilots could go to the bathroom. Everyone missed their connections.

Great. No choice for n/a. No food or entertainment options

No food is available without purchasing it and there is no in-flight entertainment. Both of these are OK because we got an inexpensive flight from Allegiant and, otherwise, our experience was excellent.

just had water and there was plenty of leg & seat room. But then i don't weight 220#s!!

Not totally their fault- screaming kids that had zero parent intervention.

It was cold on the flight. The crew was very pleasant. I didn't order any food. We were delayed due to Captain waiting on maintenance log. He kept us informed though. The flight itself was smooth. I would definitely fly with Allegiant again!

I had a fantastic experience with Allegiant. I had wheelchair assistance and they helped me find my luggage and brought me to my car. Even loaded my luggage. Wonderful service!! Thank you Allegiant!

Superb. Staff great. Great flight. As with other airlines, seating too tight and restrictive.

There is not one likable thing about this airline. It’s starts with the deceptive pricing and continues through the whole flight. The worst staff I’ve ever experienced way over priced bags absolutely no food or drink (unacceptable and you should be embarrassed) the seats are cramped and uncomfortable there is no entertainment there is nothing about this trash airline that constitutes any amount of money. It’s worse than spirit and way more expensive it is disgraceful. Do not travel with Allegiant I repeat do not bother no matter what they say the price is it is never ever going to be the right choice I’m mind blown at how awful the entire experience was I’m embarrassed that I chose so poorly I cannot reiterate enough how beyond horrible this company and its staff are, not one person on this flight or at the airport is qualified to sweep up trash on a city sidewalk they should certainly never be given any job that requires a brain or manners or communication with human beings, what a disgrace to the human race. Your criminal chiselers and should be put out to pasture

Great flight. Friendly staff. Free snacks and drinks would be nice. I would love fewer taxes and fees added on.

My 90 year old father flew with me. He needed wheel chair assistance and is nearly deaf. The staff was amazing with him.

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Everything was delayed and the staff sent me to the wrong gate, causing me to miss one of my flights. I arrived at my destination 6 hours later than I was supposed to.

Flights on time w/o delays. However, my baggage was damaged. Ground crew, throws baggage from plane to the baggage carrier, carelessly.

On time flight, good communication about boarding, lines didn't form unnecessarily for boarding before their group was announced (kept aisles clear), friendly flight attendants and service

On the return flight, arriving in Denver we sat on the tarmac in Denver for over 20 minutes.

The flight attendant was friendly and efficient. The temperature was kept nice and cool. The plane was nice, but filthy. There were visible spills on my tray table. The gate agent was somewhat rude with her announcements and in speaking with other customers.

It was an early flight and most people napped/slept and the crew let us which was nice.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

One of the worst travel experiences I've had. Had a flight scheduled with CVG to RSW on VLSWQX this morning departing at 5:30. Two individuals at the gate and one was in training. Not her fault but she didn't have the ability to check people in resulting in at least 15 families that didn't make it on the plane because they weren't checked into the system in time. When arriving at the airport to drop off our prepaid checked bags, the bag drop off agent asked if we could check our bags at the gate because of the long line. We said no problem so arrived at the gate by 5:00. They told those people that had previously paid for checked bags to stand off to the side while they let others that either didn't have a checked bag or their bag was already on the plan through. Realizing the gate workers had an issue, they either called for help or this lady showed up late for work as she didn't arrive until 5:15. The worker who had been there training the other individual and working diligently to make sure all passengers got on board. He even said that at one point all people that are currently in line are fine but asked the person in training to stand outside the ticketing area around 5:15 to notify any late travels that the flight was in boarding process and they arrrived too late. At that point, we're sill standing off to the side with our pre-paid checked bags patiently waiting. When the new lady arrived she couldn't have been more rude. It was an awful seen. Essentially they had asked for those without an assigned seat to board last, those with pre-paid checked bag stand off to the site and any traveling with a larger items that needed to be checked at the gate (such as a stroller), wait on the side. They realized that the flight needed to leave on time so the gate attendant shut the gate. So anyone without a seat assignment, those that had pre-checked bags, and the worst one I saw was a mother with two infant children was in line with use because she was asked to stand to the side because her stroller. When they shut the door to the plan they told her she could no longer get on. Her checked bags were already on the plane with her car keys in them, and the lady told her we couldn't accept anyone else on because the door was shut. She didn't even have a way to get home from the airport. Truely evil behavior. I've flown Frontier enough to know customer service is not a top priority in the company's mission, but this was an all-time low. I'm sending this after an 18 hour drive that our family just completed to Bonita Springs . I felt really bad for the lady being trained and the other individual trying to help, but when the new lady came to the gate she was truly one of the rudest individuals I've ever met. One lady had been there since 4am but because she didn't have an assigned seat they wouldn't let her on the plan.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

Seats were new and comfortable. Staff was fine. Missed my connection due to weather -which wasn’t their fault- but got no help at all. Gate staff sent me to customer service, which was and stayed unstaffed. Sign with QR code directed me to call or chat. Chat was useless. Call was returned after an hour. No itinerary offered by Frontier could get me home in less than 30 hours. Rebooked with another airline and got a partial refund that came to about 10 percent of what I paid to get home.

The experience was good. No frills but I got there safe and sound and on time.

As every law enforcement agency I could imagine surrounded the plane and we didn’t disembark for 2 hours and then had to stick around for another hour to go get our personal belongings after leaving them behind and being bused away from the plane, it was scary and inconvenient. We were given no information as to why this was happening. Lack of communication with passengers was disappointing.

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

Everything you need to know for your flight from Cincinnati to Denver

Other airlines flying from Cincinnati to Denver

Flights from the other most popular airlines that fly from Cincinnati to Denver according to KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.