DEN - TYS

$74 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 3/30. 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
$147
Overall average: $248
Frontier
Fri 2/27Mon 3/2
DEN - TYS • Non-stop
Cheapest one-way
$74
Typical prices: $128-$278
Frontier
Mon 3/30
DEN - TYS • Non-stop
Our travelers' advice
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
Video guide: How to find cheap flights to Knoxville
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Top airlines
Frontier
Cheapest • from $147 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 25% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 27% price drop
October
Most popular
Good to know
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+1
+1
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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, Feb 27 - Mon, Mar 2
Frontier Logo
1:23 pm - 6:06 pm
DEN
-
TYS
2h 43mnonstop
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
$147Frontier
Fri, Feb 27 - Mon, Mar 2
Multiple Airlines Logo
1:23 pm - 6:06 pm
DEN
-
TYS
2h 43mnonstop
Multiple Airlines Logo
9:36 pm - 9:41 pm
TYS
-
DEN
26h 05m
2 stops
$178Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
10:45 am - 3:33 pm
DEN
-
TYS
2h 48mnonstop
Frontier Logo
4:28 pm - 6:00 pm
TYS
-
DEN
3h 32mnonstop
$188Frontier
Fri, Feb 27 - Sun, Mar 1
Multiple Airlines Logo
1:23 pm - 6:06 pm
DEN
-
TYS
2h 43mnonstop
Multiple Airlines Logo
5:53 pm - 7:02 am
TYS
-
DEN
39h 09m
2 stops
$192Multiple Airlines
Mon, Feb 23 - Fri, Feb 27
Frontier Logo
2:37 pm - 7:18 pm
DEN
-
TYS
2h 41mnonstop
Frontier Logo
6:51 pm - 8:20 pm
TYS
-
DEN
3h 29mnonstop
$202Frontier
Mon, Feb 23 - Sun, Mar 1
Multiple Airlines Logo
2:37 pm - 7:18 pm
DEN
-
TYS
2h 41mnonstop
Multiple Airlines Logo
5:53 pm - 4:22 pm
TYS
-
DEN
24h 29m
1 stop
$220Multiple Airlines
Mon, Mar 9 - Fri, Mar 13
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
Frontier Logo
4:20 pm - 5:52 pm
TYS
-
DEN
3h 32mnonstop
$222Frontier
Tue, Apr 7 - Wed, Apr 15
United Airlines Logo
10:10 am - 3:06 pm
DEN
-
TYS
2h 56mnonstop
United Airlines Logo
4:30 pm - 5:56 pm
TYS
-
DEN
3h 26mnonstop
$229United Airlines
Mon, Feb 23 - Fri, Feb 27
Multiple Airlines Logo
2:37 pm - 7:18 pm
DEN
-
TYS
2h 41mnonstop
Multiple Airlines Logo
9:36 pm - 9:35 pm
TYS
-
DEN
25h 59m
2 stops
$234Multiple Airlines
Mon, Feb 23 - Sun, Mar 1
Multiple Airlines Logo
2:37 pm - 7:18 pm
DEN
-
TYS
2h 41mnonstop
Multiple Airlines Logo
5:53 pm - 7:02 am
TYS
-
DEN
39h 09m
2 stops
$235Multiple Airlines
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.

Find cheap flights to Knoxville
Find cheap flights to Knoxville

Planning a trip from Denver to Knoxville? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

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 $184 (return) on average. On the other hand, the most expensive months are March and January, where the average cost of round-trip tickets is $351 and $344 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 2 weeks before departure, which saves you about 25% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 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$74
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly with an average 3% increase in price.
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 $74 for a one-way ticket and $147 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 $363 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 $279 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 $134 or less one-way and $278 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

United Airlines

Thursday

United Airlines

United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

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

United Airlines

Thursday

United Airlines

United Airlines

Friday

Frontier, United Airlines

Frontier, United Airlines

Saturday

United Airlines

United Airlines

Sunday

United Airlines

United Airlines

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 8127 reviews
7.8Entertainment
8.1Boarding
7.2Food
7.9Comfort
8.5Crew
Airline reviews

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.

10.0 ExcellentZebrina, Jan 2026
LGA - CAE
Read more Delta reviews

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.

My flight out of Baton Rouge to Atlanta was delayed by a half hour. This got us into Atlanta airport 30 minutes late. I ran through the airport to get to my connecting flight. As I approached the boarding gate, I saw the boarding door was still open and a passenger was being checked in. But when I got to the gate, the boarding agent told me they had already given away my seat and there were no empty seats on that flight. So I had to take a later flight. That has never happened to me before. Very frustrating.

Connection through Atlanta was difficult. Mechanical issue on plane caused a two hour delay. New gate was a mile away.

No WiFi. Comfort plus should have alcohol provided, crew only offered water or tea. Who the heck wants tea?

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

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

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.

The plane was experiencing problems with the HVAC system, it was very cold in the front of the plane and very hot in the back.

The attendants were kind and helpful. A sugar-free drink would have been very welcome.

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

one crew said "he" didn't serve double alcohol drinks for travelers in exit rows. crew on prior flight did. Is this a AA rule, and the prior crew was being nice? Also, I think we deserve more than a 25% refund for losing first class seats when rescheduling a flight due to weather

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!

Crew was great. No entertainment and food and beverage was for purchase only, even water

It was canceled. The flight wasn’t rescheduled, everyone had to figure out their own new arrangements. They said we would get refunded our original fare and receive an additional $150. We received links for $100 only and they expired before we could activate them.

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

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.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

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.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Information on your arrival and departure airports