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$58+ Cheap flights from Denver to Knoxville (DEN - TYS)

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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — TYS
Aug 28 — Sep 41
Fri 8/28
Fri 9/4
1 adult, Economy
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Find cheap flights from Denver to Knoxville with Cheapflights

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Cheapflights Tip: The best prices from Denver Intl to Knoxville McGhee Tyson are usually found in August or November, booked 50 days in advance, depart on a Thursday or Friday and return on a Sunday

Cheap flight deals from Denver to Knoxville

Cheapest flights from Denver to Knoxville
Explore the most affordable flight options available from Denver to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/25. 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.
Sun 11/158:30 am
DEN
-
TYS
Nonstop2h 49m
Allegiant Air
Thu 11/198:00 am
TYS
-
DEN
Nonstop3h 25m
Allegiant Air
Deal found 7/25$145
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/205:40 pm
DEN
-
TYS
1 stop23h 03m
Multiple Airlines
Sun 8/237:00 am
TYS
-
DEN
Nonstop3h 10m
Multiple Airlines
Deal found 7/25$148
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:11 am
DEN
-
TYS
Nonstop2h 50m
Allegiant Air
Sun 8/167:00 am
TYS
-
DEN
Nonstop3h 21m
Allegiant Air
Deal found 7/27$149
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Thu 8/209:00 am
DEN
-
TYS
Nonstop2h 49m
Multiple Airlines
Mon 8/241:26 pm
TYS
-
DEN
1 stop12h 27m
Multiple Airlines
Deal found 7/28$161
This eDestinos deal was found by Cheapflights users on 7/23. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:11 am
DEN
-
TYS
Nonstop2h 50m
Allegiant Air
Sun 8/97:00 am
TYS
-
DEN
Nonstop3h 21m
Allegiant Air
Deal found 7/23$165
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 9/104:16 pm
DEN
-
TYS
1 stop19h 11m
Multiple Airlines
Sun 9/277:00 am
TYS
-
DEN
Nonstop3h 05m
Multiple Airlines
Deal found 7/24$166
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 11/58:30 am
DEN
-
TYS
Nonstop2h 49m
Allegiant Air
Sun 11/86:30 am
TYS
-
DEN
Nonstop3h 10m
Allegiant Air
Deal found 7/25$168
This CheapOair deal was found by Cheapflights users on 7/27. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 am
DEN
-
TYS
Nonstop2h 49m
Allegiant Air
Sun 9/277:00 am
TYS
-
DEN
Nonstop3h 05m
Allegiant Air
Deal found 7/27$170
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 8/278:26 pm
DEN
-
TYS
1 stop15h 35m
Multiple Airlines
Sun 8/307:00 am
TYS
-
DEN
Nonstop3h 10m
Multiple Airlines
Deal found 7/26$176
This Booking.com deal was found by Cheapflights users on 7/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:11 am
DEN
-
TYS
Nonstop2h 50m
Multiple Airlines
Mon 8/178:19 pm
TYS
-
DEN
Nonstop3h 23m
Multiple Airlines
Deal found 7/26$177

Find flight deals from Denver to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Knoxville (TYS). 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 July 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$148
(Kiwi.com)

One-way from

$58
(CheapOair)

Popular in

March

Cheapest in

August

Average price

$357

Good round-trip deal

$149 or less

Good one-way deal

$146 or less
Provider with most accurate pricing for Denver Intl-Knoxville McGhee Tyson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Knoxville McGhee Tyson flights.
Search Deals
From Denver Intl to Knoxville McGhee Tyson
Search Deals
One-way flight from Denver Intl to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($50 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Denver Intl to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way flight from Denver Intl to Knoxville McGhee Tyson.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver to Knoxville 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 July 29, 2026.
Use the filters below to find and compare flights from Denver to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Mon 10/19

5:25 pm-10:14 pm

Nonstop2h 49m

Knoxville McGhee Tyson

Sat 10/31

7:00 am-12:24 pm

1 stop7h 24m

$293

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Sat 9/12

8:35 am-7:25 pm

2 stops8h 50m

Knoxville McGhee Tyson

Tue 9/15

3:00 pm-4:15 pm

Nonstop3h 15m

$298

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Mon 10/19

6:10 am-3:38 pm

1 stop7h 28m

Knoxville McGhee Tyson

Sat 10/31

1:52 pm-11:49 pm

2 stops35h 57m

$326

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Thu 9/3

5:00 am-12:35 pm

1 stop5h 35m

Knoxville McGhee Tyson

Sun 9/6

8:55 am-2:30 pm

2 stops7h 35m

$358

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Thu 10/1

11:50 am-10:40 pm

2 stops8h 50m

Knoxville McGhee Tyson

Tue 10/6

5:15 pm-10:15 pm

2 stops7h 00m

$360
Quickest round-trip

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Thu 10/1

5:25 pm-10:14 pm

Nonstop2h 49m

Knoxville McGhee Tyson

Tue 10/6

9:00 am-10:18 am

Nonstop3h 18m

$388

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Sat 10/24

5:25 pm-10:14 pm

Nonstop2h 49m

Knoxville McGhee Tyson

Sat 10/31

1:55 pm-7:30 pm

1 stop7h 35m

$389

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Mon 10/19

11:50 am-10:40 pm

2 stops8h 50m

Knoxville McGhee Tyson

Sat 10/31

6:40 am-3:20 pm

2 stops10h 40m

$407

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Wed 8/12

11:00 am-3:54 pm

Nonstop2h 54m

Knoxville McGhee Tyson

Sat 8/15

6:02 pm-11:53 pm

1 stop7h 51m

$418

DenverKnoxville

DEN - TYS

DENTYS

Denver Intl

Fri 9/4

5:35 pm-10:29 pm

Nonstop2h 54m

Knoxville McGhee Tyson

Tue 9/8

7:20 pm-12:30 am

1 stop7h 10m

$433

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/26

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

Compare providers for flights from Denver to Knoxville

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 Denver to Knoxville in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 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 Denver-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Denver-Knoxville 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 Denver-Knoxville 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 Denver to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Denver 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 Denver to Knoxville

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

The price you pay for your flight from Denver to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 49 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 Denver to Knoxville?

Currently, August is the cheapest month in which you can book a flight from Denver to Knoxville (average of $168). Flying from Denver to Knoxville in March is currently the most expensive (average of $386). 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 DEN to TYS?

Find hourly flight availability from Denver to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 29, 2026.

When flying from Denver to Knoxville, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Denver to Knoxville?

Airfare is typical for this route at the moment.

Denver to Knoxville flights typically cost between $114 and $316 in August.
The cheapest round-trip price found within the last 5 days was $148 on Multiple Airlines (Aug 20-Aug 23).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated July 29, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAllegiant Air from Denver to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.
Southwest
8.0
Very good
4,228 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.
United Airlines
7.4
Good
10,050 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.
Allegiant Air
7.3
Good
680 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.
American Airlines
7.1
Good
11,840 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.
Frontier
5.6
Fair
2,749 reviews
Southwest
8.0
Very good
4,228 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Feb 2026

DEN - BDL

Weird they cancelled a direct and rerouted me on a connecting flight to get in 10 hours later. What was the point? Crew and flight were great, but not sure what's going on with Southwest.

Related info for your journey

Find useful and relevant information for your journey from Denver to Knoxville. 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 Denver to Knoxville?

    Booking a flight from Denver Intl (DEN) to Knoxville McGhee Tyson (TYS) is your only option if you wish to fly from Denver to Knoxville. On a typical day, there are 3 flights from Denver Intl to McGhee Tyson, all of which are around 2h 35m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Denver Intl to Knoxville.

  • How popular is this Denver to Knoxville flight route?

    Within the past month, 24 users have taken a look at flights from Denver Intl to Knoxville McGhee Tyson.

  • How long is the flight from Denver to Knoxville?

    United Airlines and Southwest can get you from Denver to Knoxville in just under 2h 49m. Your travel time can differ by up to 6h 01m. Denver and Knoxville are separated by a distance of 1159 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Denver to Knoxville is Allegiant Air. Our recent data shows that you can find tickets from as low as $58 on this airline. Additional options worth looking into are Frontier and Delta, starting at $84 and $124 round-trip. These flights start at 80% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $54. Users have also found prices from $58 and $124 on Allegiant Air and Delta, respectively.

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

    The top 3 most reliable airlines when flying from Denver to Knoxville are Allegiant Air (98%), Frontier (86%) and Volaris (86%).

  • What are the cheapest flights from Denver to Knoxville?

    Looking for the cheapest flight from Denver to Knoxville? While on average our users pay $250, our data indicates the cheapest price to be $57. The most popular route (Denver Intl - Knoxville McGhee Tyson), is priced around $105.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Denver to Knoxville 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 Denver to Knoxville?

    Currently, August is the cheapest month in which you can book a flight from Denver to Knoxville (average of $168). Flying from Denver to Knoxville in March is currently the most expensive (average of $386). 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 Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa

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Top 6 airlines flying from Denver to Knoxville

Discover the top 6 airlines that operate flights from Denver to Knoxville. 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 July 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$58Average$148FlexibilityNo cancel feeOn-time88%
FrontierCheapest$84Average$227FlexibilityNo cancel feeOn-time62%
DeltaCheapest$124Average$266FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$218Average$377FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$224Average$403FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$248Average$393FlexibilityNo cancel feeOn-time63%

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