$83 Find Cheap Flights from Knoxville to Colorado

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Colorado departing on 3/2. 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 Colorado

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Colorado.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Colorado.
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Flight Deals

Cheap Flights from Knoxville to Colorado

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Denver
Denvernonstop$166
Grand Junction
Grand Junction1 stop$461
Durango
Durango1 stop$506
Montrose
Montrose1 stop$336
Vail
Vail1 stop$389
Denver
Denvernonstop$166
Grand Junction
Grand Junction1 stop$461
Durango
Durango1 stop$506
Montrose
Montrose1 stop$336
Vail
Vail1 stop$389

Book Cheap Knoxville to Colorado Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Colorado 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 Knoxville to Colorado

Mon, Mar 2 - Mon, Mar 9
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$166Frontier
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$169Frontier
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
7:20 am - 4:22 pm
TYS
-
DEN
11h 02m
1 stop
Multiple Airlines Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$185Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
American Airlines Logo
6:21 pm - 10:10 pm
TYS
-
COS
5h 49m
1 stop
American Airlines Logo
4:48 pm - 11:51 pm
COS
-
TYS
5h 03m
1 stop
$249American Airlines
Thu, Feb 19 - Mon, Feb 23
American Airlines Logo
6:21 pm - 11:59 pm
TYS
-
COS
7h 38m
1 stop
American Airlines Logo
4:49 pm - 12:28 am
COS
-
TYS
5h 39m
1 stop
$274American Airlines
Mon, Mar 9 - Wed, Mar 11
Southwest Logo
3:45 pm - 9:50 pm
TYS
-
COS
8h 05m
1 stop
Southwest Logo
7:25 am - 8:05 pm
COS
-
TYS
10h 40m
2 stops
$330Southwest
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
4:15 pm - 8:21 pm
TYS
-
MTJ
6h 06m
1 stop
United Airlines Logo
3:33 pm - 10:30 pm
MTJ
-
TYS
4h 57m
1 stop
$336United Airlines
Fri, Mar 20 - Fri, Mar 27
Delta Logo
5:10 pm - 8:28 pm
TYS
-
COS
5h 18m
1 stop
Delta Logo
6:20 am - 4:06 pm
COS
-
TYS
7h 46m
1 stop
$339Delta
Sat, Feb 28 - Fri, Mar 6
United Airlines Logo
6:45 am - 10:55 am
TYS
-
COS
6h 10m
1 stop
United Airlines Logo
6:00 am - 3:02 pm
COS
-
TYS
7h 02m
1 stop
$348United Airlines
Mon, Mar 9 - Wed, Mar 11
Southwest Logo
3:45 pm - 9:45 pm
TYS
-
COS
8h 00m
2 stops
Southwest Logo
7:25 am - 8:05 pm
COS
-
TYS
10h 40m
2 stops
$349Southwest
Booking Insights

KAYAK's insights & trends for Knoxville to Colorado flights

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

What is the cheapest Knoxville to Colorado flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Colorado from Knoxville found in the last 72 hours was to Denver, at $133 round-trip. The most popular route is from Knoxville (TYS) to Denver (DEN), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $133.

Can I save money by flying with a layover from Knoxville to Colorado?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $302, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Knoxville to Colorado?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Knoxville to Colorado, 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 Knoxville to Colorado is November, when tickets cost $223 (return) on average. On the other hand, the most expensive months are January and March, when the average cost of round-trip tickets is $339 and $289 respectively.

What’s the cheapest day of the week to fly from Knoxville to Colorado?

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

If your flying dates are flexible, you should consider flying to Colorado on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Knoxville to Colorado. For your return ticket, we recommend flying on a Thursday and avoiding Tuesdays for the best deals.

How far in advance should I book a flight from Knoxville to Colorado?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Knoxville to Colorado, 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 Knoxville to Colorado, you should book around 2 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$95
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Knoxville to Denver

FAQs - booking Colorado flights

  • How does KAYAK find such low prices on flights from Knoxville to Colorado?

    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 Knoxville to Colorado.

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

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

    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 from Knoxville to Colorado with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Colorado?

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

  • What is the cheapest time of day to fly to Colorado?

    The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $210 on average. Morning departures are around 40% more expensive than evening flights, on average. The most expensive time of day to fly to Colorado is generally in the morning, which is peak travel time and where the average cost of a ticket is $483.

Top tips for finding cheap flights to Colorado

  • Looking for a cheap flight? 25% of our users found tickets from Knoxville to the following destinations at these prices or less: Denver $151 one-way - $255 round-trip

Reviews of the top 5 airlines serving from Knoxville to Colorado

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Colorado. 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 Knoxville to Colorado? 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.
7.9
DeltaOverall score based on 8128 reviews
8.1Boarding
7.8Entertainment
7.2Food
7.9Comfort
8.5Crew
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Outdated equipment in disrepair, wifi inoperable. Broken seats, taped air vents, generally poor condition, the 717 showed its age and lack of upkeep.

The flight was delayed by two de-icings. The seatbelt did not work correctly. It did not stay tight.

Hotter than Hades in August. Why, why do crews think that in the winter when we are already dressed for cold weather we need a cabin that is 82 degrees. Even the vents were blowing hot air.

Flight was delayed. De-icing took a while. When we landed had to wait for another plane to vacate our gate. Just an overall bad experience.

Not good - outbound flight was delayed and missed my connection even though I got to the gate after running through the airport - the agent would not let me on because the door was closed (flight had not left). There was no notification from United - overall experience was very disappointing. Additionally, I was downgraded from first class to coach on the alternative flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Even though we were delayed, we were able to make our connection

The entertainment available didn’t work for anyone on the flight. Long 6 hr flight with no entertainment option and the staff didn’t know until an hour into the flight when we made sure they knew about it. They had no way to fix it.

Late FA meant slow boarding. WiFi did not work. I’m a medium plus sized passenger. The seatbelt was for the first time ever barely fitting. And we delayed on the tarmac 40 min

My husband and I had boarded the flight from Denver to Chicago, and one of the last passengers to get on the plane opened the overhead bin above my husband's seat and threw his bag out of the bin to make space for his own. He said, "Mine is bigger!" The flight attendant supported the new passenger. They didn't care that my husband has two artificial knees and must have the foot room in front of his seat to be able to fit his legs in -- and to be able to stand, much less walk, at the end of the flight. I have never seen this happen before, and it was a disaster.

Terrible. They wouldn't allow me on my flight on the 14th..

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

It would be nice to have some low carb options in the snacks.

I was trying to take 2 one and a half hour one way trips and I experienced almost 20 delays over the course of those two trips. Only a few of them were due to weather the rest was disorganization

No gates avail at DFW so our incoming had to wait 30 mins for a plane to push back because they Had mechanical. We boarded 90 mins delayed and then we had a mechanical. Come on American…do better. Also at my seat the tray table had not been cleaned. Floor had not been cleaned. But captain and flight Att were very picture and apologetic.

Crew was helpful and cheerful especially when they had no refreshments to work with. The plane was never serviced and had nothing but limited water and coffee onboard. For the price point, a concern of services.

Flight was smooth, quick and felt safe. The 2 delays not happening would have been better but I guess that happens in the airline industry

Flight was canceled. I asked to be rerouted to OKC and then took an Uber.

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

On time on a day with lots of weather cancellations on other flights. Thank you for getting me home during a winter storm!

Don't change gate multiple times make people run across the airport. Announce delays in a timely manner. Have maintenance crew ready. Don't delay and keep passengers on the plane for 3 hrs. on tarmac.

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.

It was fine. Nobody was outstandingly friendly but no one was rude and everything was smooth . The captain thanked us for flying but no one greeted me as I walked on the plane or as I exited which is the least they could do lol

Clean, friendly, roomy. But check-in from the phone link was terrible. Repeated attempts wouldn’t save at the final step. Just kept spinning! It was very frustrating. Finally, I used the app (vs website link) to check-in which worked very smoothly on the first attempt.

Check in on the web portal was cumbersome! After several attempts I finally got the boarding pass.

Excellent flight and even arrived 23 min early. No entertainment , or wi fi on board, but I downloaded a couple of movies beforehand which kept me entertained. Really like flying Allegiant airlines.

WE were delayed about an hour and never any communications from the employees working the gate. We also were moved to a total of three gates.

I love how they show love to their customers and care about them too.

I liked how when I got on board how fast we ended up taking off but what I truly disliked was how uncomfortable the seats were. There was truly never a time that I could ever get comfortable during both of my flights. The seats could get away during shorter flights but flights 3 hour plus makes it hard to enjoy.

The crew was great and the flight was very smooth. Can’t really judge food since I did not get any because it costs money. The seat was comfortable for what we bought. Thanks!

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.

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.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

First of all, we never got on the connecting flight to Denver. They delayed our flight for two hours. If we would have gotten on that flight, we would have been stuck in Denver for 13 hours. So we re- routed our flight for a straight through flight to Oklahoma two days later. THEN, they delayed that flight for two hours. After that we were able to finally get on our flight and come home. Frontier Airlines - one of the worst airlines I have ever been on.

Terrible communication with weather delay, lost baggage, near impossible to reach customer service

Everything you need to know for your flight from Knoxville to Colorado

Information on your arrival and departure airports