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$94+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Denver Intl are usually found in November or May, booked 15 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 January 29, 2026.

This Super.com deal was found by Cheapflights users on 1/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:51 pm
TYS
-
DEN
Nonstop3h 29m
Frontier
Mon 3/910:40 am
DEN
-
TYS
Nonstop2h 45m
Frontier
Deal found 1/28$183
This Super.com deal was found by Cheapflights users on 1/27. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/208:12 pm
TYS
-
DEN
Nonstop3h 31m
Frontier
Mon 2/232:37 pm
DEN
-
TYS
Nonstop2h 41m
Frontier
Deal found 1/27$187
This Frontier deal was found by Cheapflights users on 1/27. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:13 pm
TYS
-
DEN
Nonstop3h 31m
Frontier
Mon 3/22:37 pm
DEN
-
TYS
Nonstop2h 41m
Frontier
Deal found 1/27$190
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 2/208:12 pm
TYS
-
DEN
Nonstop3h 31m
Multiple Airlines
Sun 2/227:48 am
DEN
-
TYS
1 stop12h 22m
Multiple Airlines
Deal found 1/27$197
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
Fri 2/277:21 pm
TYS
-
DEN
1 stop26h 39m
Multiple Airlines
Mon 3/910:40 am
DEN
-
TYS
Nonstop2h 45m
Multiple Airlines
Deal found 1/28$198
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Thu 6/47:00 am
TYS
-
DEN
Nonstop3h 15m
Allegiant Air
Thu 6/119:05 am
DEN
-
TYS
Nonstop2h 47m
Allegiant Air
Deal found 1/27$205
This Frontier deal was found by Cheapflights users on 1/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/234:20 pm
TYS
-
DEN
Nonstop3h 32m
Frontier
Mon 3/3010:40 am
DEN
-
TYS
Nonstop2h 45m
Frontier
Deal found 1/28$208
This Kiwi.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/94:30 pm
TYS
-
DEN
Nonstop3h 32m
Multiple Airlines
Wed 2/118:00 pm
DEN
-
TYS
2 stops24h 25m
Multiple Airlines
Deal found 1/26$219

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$183
(Super.com)

One-way from

$94
(Super.com)

Popular in

January

Cheapest in

November

Average price

$339

Good round-trip deal

$260 or less

Good one-way deal

$148 or less
Provider with most accurate pricing for Knoxville McGhee Tyson-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Denver Intl flights.
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From Knoxville McGhee Tyson to Denver Intl
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One-way flight from Knoxville McGhee Tyson to Denver Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($27 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Knoxville McGhee Tyson to Denver Intl.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Denver Intl.
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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 January 29, 2026.
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

Thu 5/7

8:45 am-10:08 am

Nonstop3h 23m

Denver Intl

Sun 5/10

5:27 pm-10:23 pm

Nonstop2h 56m

$229

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 2/20

7:25 pm-12:30 am

1 stop7h 05m

Denver Intl

Tue 2/24

5:31 pm-10:30 pm

Nonstop2h 59m

$239

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 6/30

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Tue 7/7

12:55 am-10:10 am

1 stop7h 15m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 6/30

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Tue 7/7

10:45 am-6:17 pm

1 stop5h 32m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 5/7

7:20 pm-11:51 pm

1 stop6h 31m

Denver Intl

Sun 5/10

6:05 am-3:06 pm

1 stop7h 01m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Sat 7/4

7:30 am-2:02 pm

1 stop8h 32m

Denver Intl

Wed 7/8

12:55 am-10:10 am

1 stop7h 15m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 7/3

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Wed 7/8

12:55 am-10:10 am

1 stop7h 15m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 5/15

7:20 pm-11:51 pm

1 stop6h 31m

Denver Intl

Sun 5/17

12:55 am-10:10 am

1 stop7h 15m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 3/13

5:24 pm-9:28 pm

1 stop6h 04m

Denver Intl

Tue 3/17

12:35 am-10:31 am

1 stop7h 56m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 7/2

6:15 pm-10:29 pm

1 stop6h 14m

Denver Intl

Wed 7/8

12:55 am-10:10 am

1 stop7h 15m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 22 results
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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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Denver flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 23, 2026.

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 15 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 January 29, 2026.

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 in the evening could potentially save you up to 56% 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 January 29, 2026.
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
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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
8,127 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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
9,215 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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
11,206 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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
706 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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
3,056 reviews
Delta
7.9
Good
8,127 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.2

Entertainment

7.8

Overall

7.9

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 6 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 07m.

  • How popular is this Knoxville to Denver flight route?

    Flights from Knoxville McGhee Tyson to Denver Intl have been viewed 22 times in the past calendar month.

  • How long is the flight from Knoxville to Denver?

    For as low as $229, United Airlines can have you in Denver from Knoxville in 3h 23m. 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 ($61), Frontier ($68), 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 (91%), United Airlines (86%) or Frontier (84%) 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 $78. On average you can expect to pay $664. The most popular route, (Knoxville McGhee Tyson - Denver Intl), can usually be booked for $218.

  • 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
Lakewood
Broomfield
Westminster
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Cripple Creek
Winter Park
Central City
Glendale
Manitou Springs
Frisco
Fort Morgan
Brighton
Evergreen

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Top 6 airlines flying from Knoxville to Denver

Discover the top 6 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$61Average$145FlexibilityNo cancel feeOn-time88%
FrontierCheapest$68Average$174FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$296FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$218Average$298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$364FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$248Average$298FlexibilityNo cancel feeOn-time63%

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