HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denver

$95+ Cheap flights from Knoxville to Denver (TYS - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Jan 30 — Feb 61
Fri 1/30
Fri 2/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Knoxville to Denver with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Denver Intl are usually found in November or May, booked 62 days in advance, depart on a Thursday or Sunday and return on a Thursday

Cheap flight deals from Knoxville to Denver

Cheapest flights from Knoxville to Denver
Explore the most affordable flight options available from Knoxville to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 31, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:46 pmTYS - DEN
Nonstop3h 31mMultiple Airlines
Tue 1/62:43 pmDEN - TYS
1 stop22h 20mMultiple Airlines
Deal found 12/29$327
This Gotogate deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:58 pmTYS - DEN
Nonstop3h 13mMultiple Airlines
Mon 1/511:06 amDEN - TYS
Nonstop2h 45mMultiple Airlines
Deal found 12/30$385
This Cheapflightsfares deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:58 pmTYS - DEN
Nonstop3h 13mAllegiant Air
Sun 1/48:33 amDEN - TYS
Nonstop2h 38mAllegiant Air
Deal found 12/30$427
This Mytrip deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:58 pmTYS - DEN
Nonstop3h 13mMultiple Airlines
Thu 1/110:46 amDEN - TYS
Nonstop2h 45mMultiple Airlines
Deal found 12/29$435
This American Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:08 pmTYS - DEN
1 stop7h 18mAmerican Airlines
Wed 1/78:44 amDEN - TYS
1 stop6h 58mAmerican Airlines
Deal found 12/30$454
This Cheapflightsfares deal was found by Cheapflights users on 12/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:46 pmTYS - DEN
Nonstop3h 31mFrontier
Sun 1/410:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/29$455
This Kiwi.com deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/311:58 pmTYS - DEN
Nonstop3h 13mMultiple Airlines
Wed 1/71:26 pmDEN - TYS
1 stop27h 13mMultiple Airlines
Deal found 12/30$467
This United Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/314:04 pmTYS - DEN
Nonstop3h 45mUnited Airlines
Sun 1/47:45 amDEN - TYS
1 stop8h 25mUnited Airlines
Deal found 12/30$499
This American Airlines deal was found by Cheapflights users on 12/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:08 pmTYS - DEN
1 stop7h 18mAmerican Airlines
Sat 1/310:30 amDEN - TYS
1 stop5h 00mAmerican Airlines
Deal found 12/30$509

Find flight deals from Knoxville to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 31, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$186
(Kiwi.com)

One-way from

$95
(Frontier)

Popular in

January

Cheapest in

November

Average price

$290

Good round-trip deal

$246 or less

Good one-way deal

$128 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Denver Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Denver Intl flights.
Search Deals
From Knoxville McGhee Tyson to Denver Intl
Search Deals
One-way flight from Knoxville McGhee Tyson to Denver Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Denver Intl.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Denver Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
Use the filters below to find and compare flights from Knoxville to Denver that are best for you.

Fly from

Knoxville

Fly to

Denver

Route

Depart

Return

Price

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 3/24

7:00 am-10:33 am

1 stop5h 33m

Denver Intl

Tue 3/31

6:00 am-1:17 pm

1 stop5h 17m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 3/13

6:38 pm-12:09 am

1 stop7h 31m

Denver Intl

Tue 3/17

12:35 am-10:31 am

1 stop7h 56m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 1/30

7:20 pm-12:32 am

1 stop7h 12m

Denver Intl

Mon 2/2

11:59 pm-10:57 am

1 stop8h 58m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Wed 1/21

6:30 am-10:31 am

1 stop6h 01m

Denver Intl

Wed 1/28

7:05 am-3:21 pm

1 stop6h 16m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 3/24

6:35 am-1:30 pm

2 stops8h 55m

Denver Intl

Tue 3/31

5:05 am-11:50 am

1 stop4h 45m

$254

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Wed 6/24

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Tue 6/30

10:45 am-6:15 pm

1 stop5h 30m

$269

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 6/25

7:20 pm-11:45 pm

1 stop6h 25m

Denver Intl

Wed 7/1

10:45 am-6:15 pm

1 stop5h 30m

$269

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 3/3

1:00 pm-5:24 pm

1 stop6h 24m

Denver Intl

Sun 3/8

12:35 am-10:31 am

1 stop7h 56m

$269

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Wed 6/24

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Sat 7/4

10:45 am-6:15 pm

1 stop5h 30m

$269

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 3/13

6:38 pm-10:18 pm

1 stop5h 40m

Denver Intl

Mon 3/16

12:35 am-10:31 am

1 stop7h 56m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Knoxville to Denver

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Denver in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Denver flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Knoxville-Denver flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Knoxville-Denver flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Denver flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Denver flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Knoxville to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Denver. Price data was last updated on December 26, 2025.

The price you pay for your flight from Knoxville to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 62 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Knoxville to Denver?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Denver (average of $59). Flying from Knoxville to Denver in May is currently the most expensive (average of $108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from TYS to DEN?

Find hourly flight availability from Knoxville to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 31, 2025.

One of the essential ways to save on airfare from Knoxville to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 55% on airfare.

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated December 31, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,012 reviews
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,122 reviews
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,069 reviews
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Allegiant Air
7.2
Good
701 reviews
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.7
Fair
3,067 reviews
Delta
7.9
Good
8,012 reviews

Food

7.2

Entertainment

7.8

Comfort

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Knoxville to Denver?

    You will need to book a flight from Knoxville McGhee Tyson to Denver Intl if you want to fly from Knoxville to Denver. At least 5 different airlines have flights from McGhee Tyson (TYS) to Denver Intl (DEN) on a regular basis. There are 2 flights to Denver from the Knoxville airport per day. If you manage to book one that is nonstop, then you can expect the flight time from TYS to DEN to be around 3h 13m.

  • How popular is this Knoxville to Denver flight route?

    Flights from Knoxville McGhee Tyson to Denver Intl have been viewed 26 times in the past calendar month.

  • How long is the flight from Knoxville to Denver?

    For as low as $249, United Airlines can have you in Denver from Knoxville in 5h 33m. The distance between Knoxville and Denver is about 1159 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Knoxville to Denver round-trip?

    According to our current data, Allegiant Air ($60), Frontier ($70), and Delta ($128) offers the cheapest pricing from Knoxville to Denver. Allegiant Air is currently priced 76% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Knoxville to Denver one-way?

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $54. However, be on the lookout for offers from Frontier and American Airlines, as they are both options that can get you from Knoxville to Denver for a low price.

  • What are the most reliable airlines from Knoxville to Denver?

    Consider SkyWest Airlines (86%), Frontier (83%) or United Airlines (78%) when booking your flight. These represent the most reliable airlines when flying from Knoxville to Denver.

  • What are the cheapest flights from Knoxville to Denver?

    The cheapest flight price from Knoxville to Denver is $74. On average you can expect to pay $288. The most popular route, (Knoxville McGhee Tyson - Denver Intl), can usually be booked for $186.

  • Can I find deals for flights from Knoxville to Denver that include hotel bookings?

    Yes. In addition to deals on Knoxville to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Denver.

  • Can I find deals for business class flights from Knoxville to Denver?

    Yes. Cheapflights offers flight deals from Knoxville to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Denver?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Denver (average of $59). Flying from Knoxville to Denver in May is currently the most expensive (average of $108). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Thornton
Black Hawk
Broomfield
Westminster
Golden
Greeley
Lone Tree
Lakewood
Wheat Ridge
Winter Park
Cripple Creek
Silverthorne
Central City
Frisco
Manitou Springs
Fort Morgan
Brighton
Longmont
Evergreen
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Knoxville to Denver

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to Denver flights
Memphis to Denver flights
Chattanooga to Denver flights
Knoxville to Colorado Springs flights
Memphis to Vail flights
Blountville to Denver flights
Nashville to Vail flights
Nashville to Montrose flights
Nashville to Colorado Springs flights
Nashville to Aspen flights
Nashville to Durango flights
Chattanooga to Colorado Springs flights
Memphis to Aspen flights
Nashville to Gunnison flights
Nashville to Grand Junction flights
Knoxville to Durango flights
Memphis to Colorado Springs flights
Blountville to Colorado Springs flights
Knoxville to Montrose flights
Knoxville to Vail flights
Memphis to Hayden flights
Knoxville to Grand Junction flights
Memphis to Montrose flights
Knoxville to Aspen flights
Memphis to Grand Junction flights
Chattanooga to Aspen flights
Blountville to Montrose flights
Memphis to Durango flights
Blountville to Grand Junction flights
Nashville to Alamosa flights

Top 5 airlines flying from Knoxville to Denver

Discover the top 5 airlines that operate flights from Knoxville to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$73Average$150FlexibilityNo cancel feeOn-time88%
FrontierCheapest$78Average$177FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$218Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$230Average$391FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$292FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.