DEN - TYS

$67 Find Cheap Flights from Denver to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Knoxville departing on 6/3. 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 Knoxville

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

Cheapest round-trip
$167
Overall average: $298
Frontier
Fri 5/15Mon 5/18
DEN - TYS • Non-stop
Cheapest non-stop
$179
Typical prices: $131-$341
Frontier, Allegiant Air
Wed 6/3Thu 6/4
DEN - TYS • Non-stop
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
United's Economy Plus offers extra legroom on this route.
Allegiant's Bonus bundle includes a carry-on and seat choice.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $187 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with United Airlines, Frontier and others. Average duration is 2h 51m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 38% compared to booking last minute.
Insights
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Insights
When to travel
Cheapest • 29% price drop
Most popular
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We hope you love your trip to Knoxville!
Flight Deals
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Flight Deals

Cheap Flights from Denver to Knoxville (DEN-TYS)

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

Fri, May 15 - Mon, May 18
Frontier Logo
2:46 pm - 7:33 pm
DEN
-
TYS
2h 47mnonstop
Frontier Logo
8:32 pm - 10:02 pm
TYS
-
DEN
3h 30mnonstop
$167Frontier
Wed, Jun 3 - Thu, Jun 4
Multiple Airlines Logo
2:46 pm - 7:33 pm
DEN
-
TYS
2h 47mnonstop
Multiple Airlines Logo
7:00 am - 8:15 am
TYS
-
DEN
3h 15mnonstop
$179Multiple Airlines
Thu, Jun 4 - Fri, Jun 5
Multiple Airlines Logo
9:05 am - 1:52 pm
DEN
-
TYS
2h 47mnonstop
Multiple Airlines Logo
8:32 pm - 10:02 pm
TYS
-
DEN
3h 30mnonstop
$182Multiple Airlines
Thu, Jun 25 - Thu, Jul 2
Allegiant Air Logo
9:05 am - 1:52 pm
DEN
-
TYS
2h 47mnonstop
Allegiant Air Logo
7:00 am - 8:11 am
TYS
-
DEN
3h 11mnonstop
$183Allegiant Air
Wed, Jun 3 - Mon, Jun 8
Multiple Airlines Logo
2:46 pm - 7:33 pm
DEN
-
TYS
2h 47mnonstop
Multiple Airlines Logo
7:25 am - 8:11 am
TYS
-
DEN
26h 46m
1 stop
$186Multiple Airlines
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
9:05 am - 1:52 pm
DEN
-
TYS
2h 47mnonstop
Allegiant Air Logo
7:00 am - 8:15 am
TYS
-
DEN
3h 15mnonstop
$187Allegiant Air
Fri, Aug 7 - Fri, Aug 14
Frontier Logo
2:21 pm - 7:13 pm
DEN
-
TYS
2h 52mnonstop
Frontier Logo
8:08 pm - 9:42 pm
TYS
-
DEN
3h 34mnonstop
$188Frontier
Sun, Jun 7 - Wed, Jun 10
Multiple Airlines Logo
9:05 am - 1:52 pm
DEN
-
TYS
2h 47mnonstop
Multiple Airlines Logo
8:08 pm - 9:42 pm
TYS
-
DEN
3h 34mnonstop
$189Multiple Airlines
Wed, Jun 3 - Mon, Jun 8
Frontier Logo
2:46 pm - 7:33 pm
DEN
-
TYS
2h 47mnonstop
Frontier Logo
8:32 pm - 10:02 pm
TYS
-
DEN
3h 30mnonstop
$190Frontier
Fri, Aug 7 - Fri, Aug 14
Frontier Logo
2:21 pm - 7:13 pm
DEN
-
TYS
2h 52mnonstop
Frontier Logo
8:08 pm - 9:42 pm
TYS
-
DEN
3h 34mnonstop
$191Frontier
Booking Insights

KAYAK's insights & trends for Denver to Knoxville flights

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

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

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

If you are looking for a flight deal from Denver to Knoxville, look for departures on Thursdays and avoid leaving on a Tuesday, as it's usually the priciest day. When flying back from Knoxville, Thursday is the cheapest day to fly and Monday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Knoxville, 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 Denver to Knoxville is August, where tickets cost $189 (return) on average. On the other hand, the most expensive months are January and March, where the average cost of round-trip tickets is $378 and $348 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Denver to Knoxville, 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 Denver to Knoxville, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 24 weeks before departure.

Expert advice

Expert advice for your flight from Denver to Knoxville

 
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 United Airlines and Frontier

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.

Daniel Scheffler

Daniel Scheffler

Expert on Allegiant Air

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Good to know

Low seasonJanuary
Cheapest flight$73
Best time to beat the crowds but there is an average 41% increase in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Denver to Knoxville

When to book flights from Denver to Knoxville

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

  • Which is the best way to get to downtown Knoxville from McGhee Tyson Airport (TYS)?

    The city center of Knoxville and McGhee Tyson Airport (TYS) sit approximately 13.5 miles apart. You can travel there via numerous transportation options such as shuttle services, intercity travel and taxis. Those who want to arrive there quickly should consider taking a taxi, as it will get you there in under 18min.

  • Is there ground transportation between the terminals at Knoxville McGhee Tyson Airport (TYS)?

    TYS has only one, two-level terminal building consisting of the lower level and upper level. The two floors are connected by stairs, making it easier to easily walk from one level to the other.

  • Where can I sleep at Knoxville McGhee Tyson Airport (TYS)?

    After the security checkpoints close, all persons are confined to the landslide area. In this space are padded, armrest-free benches on which you can rest comfortably. Please note that you’ll have to seek clearance again before connecting to your next flight.

  • Are there car rentals at Knoxville McGhee Tyson Airport (TYS)?

    Multiple car rental operators like Alamo, Budget, Avis, and Dollar operate their counters at TYS. Therefore, if you intend to explore the city in a car, you won’t a shortage of options. You can locate these car rental desks at the lower level adjacent to the baggage claim. Book your can in advance online to enjoy special rates.

  • What is the cheapest flight from Denver to Knoxville?

    In the last 3 days, the lowest price for a flight from Denver to Knoxville was $67 for a one-way ticket and $179 for a round-trip.

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

    No, a passport isn't needed to fly from Denver to Knoxville. However, local authorities might ask for an official ID.

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

    On your way to Knoxville, you’ll fly out from Denver Intl. You’ll be landing at Knoxville McGhee Tyson.

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

    Only JetBlue offers inflight Wi-Fi service on the Denver to Knoxville flight route.

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

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Denver to Knoxville flight route.

  • Which airline alliances offer flights from Denver to Knoxville?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Denver to Knoxville are Southwest and Delta. With an average price for the route of $323 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 $278 and an overall rating of 7.9.

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

    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 Denver to Knoxville.

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

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

    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 Knoxville with an airline and back to Denver with another airline. Booking your flights between Denver and TYS 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 Denver to Knoxville?

    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 Knoxville from Denver 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 Denver to Knoxville

  • Looking for a cheap flight? 25% of our users found flights on this route for $106 or less one-way and $205 or less round-trip.
  • Suppose you’re scheduled for an early morning flight via Denver International Airport (DEN). In that case, plan to spend a night in one of the many hotels around this establishment. Typically, such facilities offer courtesy cars to and from the airport, enabling you to be at the terminal in time for your departure. Such hotels include The Westin Denver International Airport.
  • There’s one terminal at Denver International Airport (DEN), the Jeppesen Terminal, connected to three Concourses, A, B, and C. At the terminal are check-in facilities, customs, immigration, security checkpoints, and luggage claims. All three concourses are reserved for departures. The Automated Guideway Transit System facilitates movement between the terminal and the concourses, and it departs every 5-15min.
  • Families departing through Denver International Airport (DEN) should remember that the property caters to the needs of moms and their little ones. There are suites dedicated to lactating and nursing moms to pump and breastfeed in privacy. You can locate them post security in every concourse. Still, the rooms feature comfy seats, power sockets, and sinks.
  • Religious souls keen to have a private moment with their maker before departing from DEN to Knoxville will find a prayer room at this property. This sacred oasis sits in Jeppesen Terminal, Level 6 East, and operates from 4 am to midnight, daily. The suite features an inter-faith chapel and an Islamic Masjid.
  • Those arriving at DEN and who are looking to drop off their cars before leaving from Knoxville will have a wide range of options to choose from. DEN provides various levels of parking such as long-term, short-term, economy, and garage. You can find the Economy parking on the east side of Jeppesen Terminal. Free shuttles run between the two points at a 10min interval.

Prefer to fly direct from Denver to Knoxville?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Denver Intl to Knoxville McGhee Tyson.
Find which airlines fly direct from Denver Intl Airport to Knoxville McGhee Tyson Airport, which days they fly and book direct flights.

Direct departures

Denver Intl to Knoxville McGhee Tyson

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,Frontier

United Airlines,Frontier

Thursday

Frontier,United Airlines,Allegiant Air

Frontier,United Airlines, +1 more

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Frontier,Southwest,United Airlines, +1 more

Frontier,Southwest, +2 more

See more direct flights

Direct returns

Knoxville McGhee Tyson to Denver Intl

Monday

Frontier,United Airlines

Frontier,United Airlines

Tuesday

United Airlines

United Airlines

Wednesday

United Airlines,Frontier

United Airlines,Frontier

Thursday

Frontier,United Airlines,Allegiant Air

Frontier,United Airlines, +1 more

Friday

Frontier,United Airlines

Frontier,United Airlines

Saturday

Southwest,United Airlines

Southwest,United Airlines

Sunday

Frontier,Southwest,United Airlines, +1 more

Frontier,Southwest, +2 more

See more direct flights

Reviews of the top 5 airlines serving from Denver to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Denver to Knoxville. 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 Denver to Knoxville? 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 8288 reviews
8.5Crew
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
Airline reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

10.0 ExcellentDebra, Mar 2026
PBI - ATL
Read more Delta reviews

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Flight left on time and we arrived 25 minutes early! There was a gate available when we arrived so early on a busy Sunday afternoon! Flight attendants came around twice with the drinks cart.

Sitting on the runway after we land for almost two hours! Not sure if we should blame United or Just Dumpy Vance.

Flight was late - I was downgraded from first class to coach

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

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

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

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.

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.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

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

Information on your arrival and departure airports