$44 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 6/24. 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$142
Vail
Vail1 stop$389
Grand Junction
Grand Junction1 stop$401
Durango
Durango1 stop$353
Montrose
Montrose1 stop$331
Denver
Denvernonstop$142
Vail
Vail1 stop$389
Grand Junction
Grand Junction1 stop$401
Durango
Durango1 stop$353
Montrose
Montrose1 stop$331

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

Wed, Jun 17 - Wed, Jun 24
Frontier Logo
8:32 pm - 10:12 pm
TYS
-
DEN
3h 40mnonstop
Frontier Logo
2:46 pm - 7:37 pm
DEN
-
TYS
2h 51mnonstop
$142Frontier
Thu, Jun 18 - Wed, Jun 24
Multiple Airlines Logo
7:00 am - 8:15 am
TYS
-
DEN
3h 15mnonstop
Multiple Airlines Logo
2:46 pm - 7:37 pm
DEN
-
TYS
2h 51mnonstop
$148Multiple Airlines
Thu, Jul 30 - Sun, Aug 2
Allegiant Air Logo
7:00 am - 8:11 am
TYS
-
DEN
3h 11mnonstop
Allegiant Air Logo
9:01 am - 1:51 pm
DEN
-
TYS
2h 50mnonstop
$149Allegiant Air
Thu, Jul 30 - Sun, Aug 2
Allegiant Air Logo
7:00 am - 8:11 am
TYS
-
DEN
3h 11mnonstop
Allegiant Air Logo
9:01 am - 1:51 pm
DEN
-
TYS
2h 50mnonstop
$160Allegiant Air
Tue, Aug 11 - Mon, Aug 17
United Airlines Logo
4:56 pm - 8:12 pm
TYS
-
MTJ
5h 16m
1 stop
United Airlines Logo
7:15 am - 3:54 pm
MTJ
-
TYS
6h 39m
1 stop
$331United Airlines
Tue, Aug 11 - Mon, Aug 17
United Airlines Logo
6:30 am - 2:27 pm
TYS
-
MTJ
9h 57m
2 stops
United Airlines Logo
7:15 am - 3:54 pm
MTJ
-
TYS
6h 39m
1 stop
$344United Airlines
Mon, May 25 - Sat, May 30
American Airlines Logo
5:36 am - 9:54 am
TYS
-
DRO
6h 18m
1 stop
American Airlines Logo
5:28 am - 1:02 pm
DRO
-
TYS
5h 34m
1 stop
$353American Airlines
Thu, May 28 - Tue, Jun 9
Delta Logo
5:59 pm - 9:27 pm
TYS
-
COS
5h 28m
1 stop
Delta Logo
6:00 am - 1:19 pm
COS
-
TYS
5h 19m
1 stop
$360Delta
Wed, Jun 24 - Tue, Jun 30
American Airlines Logo
5:33 pm - 10:24 pm
TYS
-
COS
6h 51m
1 stop
American Airlines Logo
3:53 pm - 11:55 pm
COS
-
TYS
6h 02m
1 stop
$363American Airlines
Thu, May 28 - Tue, Jun 9
Delta Logo
5:59 pm - 9:27 pm
TYS
-
COS
5h 28m
1 stop
Delta Logo
11:10 am - 11:54 pm
COS
-
TYS
10h 44m
2 stops
$365Delta
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.

How much is a round-trip flight from Knoxville to Colorado?

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

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 $161 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 $161.

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

The average price for all round-trip flights from Knoxville to Colorado depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Colorado is generally at night, when round-trip flights cost $214 on average. Morning departures are around 38% 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 $489.

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 $347, 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 September, when tickets cost $41 (return) on average. On the other hand, the most expensive months are February and December, when the average cost of round-trip tickets is $88 and $88 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, Wednesday is the most expensive day to fly from Knoxville to Colorado. For your return ticket, we recommend flying on a Thursday and avoiding Wednesdays 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 4 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$44
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 6% increase in price.
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.

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 $146 one-way - $353 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 8463 reviews
8.1Boarding
7.8Entertainment
7.9Comfort
8.5Crew
7.2Food
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

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.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

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.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

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.

Air condition was not working for long both after boarding and also after landing ; unbearably hot and suffocating

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

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.

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.

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

Information on your arrival and departure airports