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$54+ 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 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Booking.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/241:58 pmTYS - DEN
Nonstop3h 13mAllegiant Air
Wed 12/314:01 pmDEN - TYS
Nonstop2h 38mAllegiant Air
Deal found 12/10$136
This Kiwi.com deal was found by Cheapflights users on 12/11. 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 12/186:30 amTYS - DEN
Nonstop3h 13mMultiple Airlines
Thu 12/1810:46 amDEN - TYS
Nonstop2h 45mMultiple Airlines
Deal found 12/11$139
This Gotogate deal was found by Cheapflights users on 12/11. 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.
Mon 12/224:46 pmTYS - DEN
Nonstop3h 31mMultiple Airlines
Wed 12/314:01 pmDEN - TYS
Nonstop2h 38mMultiple Airlines
Deal found 12/11$140
This Super.com deal was found by Cheapflights users on 12/11. 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.
Tue 12/234:46 pmTYS - DEN
Nonstop3h 31mFrontier
Thu 12/2510:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/11$154
This Frontier deal was found by Cheapflights users on 12/11. 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.
Sun 12/144:52 pmTYS - DEN
Nonstop3h 31mFrontier
Thu 12/1810:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/11$168
This Super.com deal was found by Cheapflights users on 12/11. 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.
Tue 12/304:46 pmTYS - DEN
Nonstop3h 31mFrontier
Mon 1/511:06 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/11$189
This Mytrip deal was found by Cheapflights users on 12/10. 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 12/241:58 pmTYS - DEN
Nonstop3h 13mMultiple Airlines
Tue 12/3011:06 amDEN - TYS
Nonstop2h 45mMultiple Airlines
Deal found 12/10$193
This Frontier deal was found by Cheapflights users on 12/11. 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.
Thu 12/114:52 pmTYS - DEN
Nonstop3h 31mFrontier
Thu 12/1810:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/11$196
This Kiwi.com deal was found by Cheapflights users on 12/9. 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 12/184:26 pmTYS - DEN
Nonstop3h 31mFrontier
Thu 1/110:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/9$219
This Frontier deal was found by Cheapflights users on 12/11. 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.
Sun 12/144:52 pmTYS - DEN
Nonstop3h 31mFrontier
Sun 12/2110:46 amDEN - TYS
Nonstop2h 45mFrontier
Deal found 12/11$234
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/188:40 amTYS - COS
1 stop6h 31mUnited Airlines
Thu 12/2512:11 pmCOS - TYS
1 stop8h 28mUnited Airlines
Deal found 12/10$335
This American Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/255:23 amTYS - COS
1 stop6h 23mAmerican Airlines
Thu 12/254:46 pmCOS - TYS
1 stop4h 59mAmerican Airlines
Deal found 12/10$403

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$136
(Booking.com)

One-way from

$54
(Super.com)

Popular in

January

Cheapest in

November

Average price

$294

Good round-trip deal

$219 or less

Good one-way deal

$106 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 Colorado
Search Deals
One-way flight from Knoxville McGhee Tyson to Colorado
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 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 December 12, 2025.
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

Thu 1/8

4:23 pm-5:54 pm

Nonstop3h 31m

Denver Intl

Sun 1/11

11:59 pm-5:28 pm

1 stop15h 29m

$214

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 1/9

4:25 pm-6:15 pm

Nonstop3h 50m

Denver Intl

Mon 1/12

5:01 am-1:50 pm

1 stop6h 49m

$239

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 1/9

4:55 pm-11:41 pm

1 stop8h 46m

Denver Intl

Sun 1/11

5:30 pm-10:31 pm

Nonstop3h 01m

$239

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Sat 1/17

7:27 am-1:33 pm

1 stop8h 06m

Denver Intl

Thu 1/22

11:25 am-8:22 pm

1 stop6h 57m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 5/8

4:00 pm-10:18 pm

1 stop8h 18m

Denver Intl

Mon 5/11

12:59 am-9:11 am

1 stop6h 12m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Wed 1/21

11:10 am-3:52 pm

1 stop6h 42m

Denver Intl

Sun 1/25

6:00 am-1:24 pm

1 stop5h 24m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 3/10

5:30 am-11:54 am

1 stop8h 24m

Denver Intl

Tue 3/17

7:30 am-4:12 pm

1 stop6h 42m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 1/22

6:59 am-11:44 am

1 stop6h 45m

Denver Intl

Sun 1/25

11:59 pm-10:57 am

1 stop8h 58m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Sun 1/18

6:30 am-10:31 am

1 stop6h 01m

Denver Intl

Thu 1/22

10:34 am-8:47 pm

1 stop8h 13m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Wed 1/14

7:30 am-1:33 pm

1 stop8h 03m

Denver Intl

Thu 1/22

7:10 am-4:19 pm

1 stop7h 09m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 41 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 $107). 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 December 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 36% on flights from Knoxville to Colorado by exploring options for tickets in the evening.

What is the cheapest day to fly from Knoxville to Colorado?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Colorado. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Knoxville to Colorado flight should consider departing on Friday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 December 12, 2025.

The most flights from TYS to USCO are scheduled on a Thursday (4 on average). You will have fewer flight options on Monday, 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 December 12, 2025.
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
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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
8,008 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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
9,095 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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
11,048 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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
699 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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
5.8
Fair
3,084 reviews
Delta
7.9
Good
8,008 reviews

Entertainment

7.9

Food

7.3

Boarding

8.1

Comfort

7.9

Crew

8.5

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 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, 26 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 50m. United Airlines provides one of the quickest options available for as low as $239. 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 $55 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 - Durango La Plata County.

  • 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 (88%), Frontier (87%), United Airlines (79%).

  • What are the cheapest flights from Knoxville to Colorado?

    Looking for the cheapest flight from Knoxville to Colorado? While on average our users pay $949, our data indicates the cheapest price to be $52. The most popular route (Knoxville McGhee Tyson - Denver Intl), is priced around $139.

  • 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 $107). 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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Alternative routes for Knoxville to Colorado

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Top 5 airlines flying from Knoxville to Colorado

Discover the top 5 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$71Average$148FlexibilityNo cancel feeOn-time88%
FrontierCheapest$77Average$177FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$218Average$415FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$232Average$517FlexibilityNo cancel feeOn-time69%
DeltaCheapest$236Average$312FlexibilityNo cancel feeOn-timeN/A

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