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$39+ Cheap flights from Knoxville (TYS) to Colorado

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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Knoxville to Colorado

Cheapest flights from Knoxville to Colorado
Explore the most affordable flight options available from Knoxville to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

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
Sat 2/1412:01 am
DEN
-
TYS
2 stops20h 24m
Multiple Airlines
Deal found 1/26$179
This Super.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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:28 pm
TYS
-
DEN
Nonstop3h 32m
Frontier
Sun 4/1910:45 am
DEN
-
TYS
Nonstop2h 48m
Frontier
Deal found 1/26$186
This Super.com deal was found by Cheapflights users on 1/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/168:13 pm
TYS
-
DEN
Nonstop3h 31m
Frontier
Mon 2/232:37 pm
DEN
-
TYS
Nonstop2h 41m
Frontier
Deal found 1/25$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 1/26. 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 2/24:30 pm
TYS
-
DEN
Nonstop3h 32m
Multiple Airlines
Sun 2/87:35 am
DEN
-
TYS
1 stop8h 18m
Multiple Airlines
Deal found 1/26$193
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 1/26. 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.
Fri 2/64:25 pm
TYS
-
DEN
Nonstop3h 32m
Multiple Airlines
Sun 2/87:35 am
DEN
-
TYS
1 stop8h 18m
Multiple Airlines
Deal found 1/26$203
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 6/47:00 am
TYS
-
DEN
Nonstop3h 15m
Allegiant Air
Thu 6/119:05 am
DEN
-
TYS
Nonstop2h 47m
Allegiant Air
Deal found 1/25$204
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Mon 2/168:13 pm
TYS
-
DEN
Nonstop3h 31m
Multiple Airlines
Sat 2/214:38 pm
DEN
-
TYS
1 stop27h 32m
Multiple Airlines
Deal found 1/25$212
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
This American Airlines deal was found by Cheapflights users on 1/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2412:21 pm
TYS
-
COS
1 stop5h 39m
American Airlines
Sat 2/284:51 pm
COS
-
TYS
1 stop5h 37m
American Airlines
Deal found 1/25$249
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/146:21 pm
TYS
-
COS
1 stop5h 49m
American Airlines
Wed 2/186:00 am
COS
-
TYS
1 stop7h 37m
American Airlines
Deal found 1/26$274

Find flight deals from Knoxville to Colorado

Keep the following information in mind while searching for Knoxville to Colorado flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$179
(Kiwi.com)

One-way from

$39
(Kiwi.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.
Search Deals
Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Denver Intl flights.
Search Deals
From Knoxville McGhee Tyson to Colorado
Search Deals
One-way flight from Knoxville McGhee Tyson to Colorado
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 Colorado.
Search Deals
Price to beat on a one-way flight from Knoxville McGhee Tyson to Colorado.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Colorado 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 27, 2026.
Use the filters below to find and compare flights from Knoxville to Colorado that are best for you.

Fly from

Knoxville

Fly to

Colorado

Route

Depart

Return

Price

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 4/17

4:30 pm-5:56 pm

Nonstop3h 26m

Denver Intl

Tue 4/21

10:10 am-3:06 pm

Nonstop2h 56m

$229

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Tue 2/24

12:21 pm-4:00 pm

1 stop5h 39m

Colorado Springs

Sat 2/28

4:51 pm-12:28 am

1 stop5h 37m

$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

12:55 am-10:10 am

1 stop7h 15m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 4/3

6:30 am-9:50 am

1 stop5h 20m

Denver Intl

Sun 4/5

5:15 am-12:55 pm

1 stop5h 40m

$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 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

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 6/25

7:20 pm-11:45 pm

1 stop6h 25m

Denver Intl

Fri 7/3

10:45 am-6:15 pm

1 stop5h 30m

$249

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Sat 2/14

6:21 pm-10:10 pm

1 stop5h 49m

Colorado Springs

Wed 2/18

6:00 am-3:37 pm

1 stop7h 37m

$274

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 47 results
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Best time to book a flight from Knoxville to Colorado

Have a flexible travel schedule? Discover the best time to fly to Colorado 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 Colorado

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

Currently, August is the cheapest month in which you can book a flight from Knoxville to Colorado (average of $59). Flying from Knoxville to Colorado 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 CO?

Find hourly flight availability from Knoxville to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 27, 2026.

Unlike in the morning, when flights are generally more expensive, you can save up to 56% on flights from Knoxville to Colorado by exploring options for tickets in the evening.

Weekly flight availability from Knoxville to Colorado

Explore weekly flight availability from Knoxville to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 27, 2026.

The most flights from TYS to USCO are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).

Reviews of airlines servicing Colorado

Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated January 27, 2026.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Colorado have to say. 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.
Delta
7.9
Good
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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
8,121 reviews
Delta
7.9
Good
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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
9,207 reviews
Delta
7.9
Good
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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
11,198 reviews
Delta
7.9
Good
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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
8,121 reviews

Overall

7.9

Comfort

7.9

Boarding

8.1

Entertainment

7.8

Crew

8.5

Food

7.2

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 Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Knoxville to Colorado?

    Most people fly from Knoxville McGhee Tyson (TYS) if they book a flight from Knoxville to Colorado. Knoxville McGhee Tyson is conveniently located just 11.3 mi from Knoxville’s city center.

  • How popular is this Knoxville to Colorado flight route?

    Within the past month, 22 users have taken a look at flights from Knoxville McGhee Tyson to Colorado.

  • How long is the flight from Knoxville to Colorado?

    A quick flight from Knoxville to Colorado can take about 3h 26m. United Airlines provides one of the quickest options available for as low as $229. The distance from Knoxville to Colorado is about 1159 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $54. Frontier flights start at $54 while deals on American Airlines start at $128 one-way.

  • What are the most popular routes from Knoxville to Colorado?

    The most popular flight routes from Knoxville to Colorado are Knoxville McGhee Tyson - Denver Intl, Knoxville McGhee Tyson - Colorado Springs and Knoxville McGhee Tyson - Grand Junction Regnl.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Knoxville to Colorado on time: SkyWest Airlines (91%), United Airlines (86%), Frontier (84%).

  • What are the cheapest flights from Knoxville to Colorado?

    Looking for the cheapest flight from Knoxville to Colorado? While on average our users pay $664, our data indicates the cheapest price to be $78. The most popular route (Knoxville McGhee Tyson - Denver Intl), is priced around $159.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Colorado (average of $59). Flying from Knoxville to Colorado 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.

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Top 6 airlines flying from Knoxville to Colorado

Discover the top 6 airlines that operate flights from Knoxville to Colorado. 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$61Average$145FlexibilityNo cancel feeOn-time88%
FrontierCheapest$68Average$174FlexibilityNo cancel feeOn-time62%
DeltaCheapest$128Average$317FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$218Average$405FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$229Average$457FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$248Average$298FlexibilityNo cancel feeOn-time63%

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