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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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Knoxville to Colorado

Keep the following information in mind while searching for Knoxville to Colorado flight deals. Data was last updated September 11, 2025.

Round-trip from

$98
(Kiwi.com)

One-way from

$54
(Frontier)

Popular in

December

Cheapest in

November

Average price

$236

Good round-trip deal

$220 or less

Good one-way deal

$106 or less
From Knoxville McGhee Tyson to Colorado
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One-way flight from Knoxville McGhee Tyson to Colorado
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Highest demand for flights based on searches. 2% potential increase in price ($6 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Colorado.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Colorado.
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Find 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 September 11, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:00 amTYS - DEN
Nonstop3h 04mAllegiant Air
Sun 11/28:54 amDEN - TYS
Nonstop2h 39mAllegiant Air
Deal found 9/11$100
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/248:17 pmTYS - DEN
Nonstop3h 22mFrontier
Mon 10/272:43 pmDEN - TYS
Nonstop2h 49mFrontier
Deal found 9/10$109
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/91:16 pmTYS - DEN
1 stop10h 23mMultiple Airlines
Thu 11/131:36 pmDEN - TYS
Nonstop2h 46mMultiple Airlines
Deal found 9/10$112
This Kiwi.com deal was found by Cheapflights users on 9/11. 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 9/258:40 pmTYS - DEN
Nonstop3h 09mFrontier
Mon 9/292:59 pmDEN - TYS
Nonstop2h 46mFrontier
Deal found 9/11$115
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:00 amTYS - DEN
Nonstop3h 04mAllegiant Air
Sun 10/268:54 amDEN - TYS
Nonstop2h 39mAllegiant Air
Deal found 9/10$119
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:17 pmTYS - DEN
Nonstop3h 22mFrontier
Mon 10/202:43 pmDEN - TYS
Nonstop2h 49mFrontier
Deal found 9/10$121
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:00 amTYS - DEN
Nonstop3h 06mAllegiant Air
Sun 9/288:56 amDEN - TYS
Nonstop2h 47mAllegiant Air
Deal found 9/10$125
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/257:00 amTYS - DEN
Nonstop3h 06mMultiple Airlines
Mon 9/292:59 pmDEN - TYS
Nonstop2h 46mMultiple Airlines
Deal found 9/10$126
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/228:35 pmTYS - DEN
Nonstop3h 09mFrontier
Sun 10/511:29 amDEN - TYS
Nonstop2h 49mFrontier
Deal found 9/10$138
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/146:00 amTYS - COS
1 stop5h 46mAmerican Airlines
Sat 10/185:01 pmCOS - TYS
1 stop5h 22mAmerican Airlines
Deal found 9/9$223
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3112:34 pmTYS - COS
1 stop5h 28mAmerican Airlines
Sat 11/15:01 pmCOS - TYS
1 stop5h 22mAmerican Airlines
Deal found 9/9$236
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sat 10/256:00 amTYS - COS
1 stop5h 46mAmerican Airlines
Sat 11/16:02 amCOS - TYS
2 stops9h 44mAmerican Airlines
Deal found 9/10$252

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 September 11, 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

Fri 12/12

1:41 pm-8:10 am

1 stop20h 29m

Denver Intl

Mon 12/15

11:07 am-3:52 pm

Nonstop2h 45m

$143

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Sat 10/25

6:00 am-9:46 am

1 stop5h 46m

Colorado Springs

Sat 11/1

5:01 pm-12:23 am

1 stop5h 22m

$223

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Tue 10/14

6:00 am-9:46 am

1 stop5h 46m

Colorado Springs

Sat 10/18

5:01 pm-12:23 am

1 stop5h 22m

$223

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Fri 10/31

12:34 pm-4:02 pm

1 stop5h 28m

Colorado Springs

Sat 11/1

5:01 pm-12:23 am

1 stop5h 22m

$236

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 11/21

5:33 pm-11:14 pm

1 stop7h 41m

Denver Intl

Fri 11/28

6:00 am-1:44 pm

1 stop5h 44m

$249

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 11/21

5:52 pm-11:15 pm

1 stop7h 23m

Denver Intl

Tue 11/25

7:46 am-5:08 pm

1 stop7h 22m

$249

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Fri 10/31

4:58 pm-9:59 pm

1 stop7h 01m

Colorado Springs

Sat 11/1

6:00 am-5:08 pm

2 stops9h 08m

$254

KnoxvilleMontrose

TYS - MTJ

TYSMTJ

Knoxville McGhee Tyson

Wed 11/5

10:50 am-8:20 pm

2 stops11h 30m

Montrose County

Mon 11/10

7:15 am-3:51 pm

1 stop6h 36m

$261

KnoxvilleColorado Springs

TYS - COS

TYSCOS

Knoxville McGhee Tyson

Sat 10/25

8:50 am-2:44 pm

2 stops7h 54m

Colorado Springs

Sat 11/1

11:35 am-8:33 pm

2 stops6h 58m

$262

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Tue 9/30

11:57 am-8:19 pm

1 stop10h 22m

Denver Intl

Fri 10/3

12:45 am-10:09 am

1 stop7h 24m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 42 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, October is the cheapest month in which you can book a flight from Knoxville to Colorado (average of $197). Flying from Knoxville to Colorado in March is currently the most expensive (average of $278). 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 September 11, 2025.

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

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 September 11, 2025.

The most flights from TYS to USCO are scheduled on a Thursday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (1 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 September 11, 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
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
702 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Frontier
5.8
Fair
3,177 reviews
Delta
8.0
Very good
7,960 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Crew

8.5

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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, 16 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 5h 46m. American Airlines provides one of the quickest options available for as low as $223. The distance from Knoxville to Colorado is about 1153 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 $62. Frontier flights start at $80 while deals on United Airlines start at $145 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 - Montrose 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 (92%), Allegiant Air (75%), United Airlines (70%).

  • What are the cheapest flights from Knoxville to Colorado?

    Looking for the cheapest flight from Knoxville to Colorado? While on average our users pay $526, our data indicates the cheapest price to be $54. The most popular route (Knoxville McGhee Tyson - Denver Intl), is priced around $116.

  • 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, October is the cheapest month in which you can book a flight from Knoxville to Colorado (average of $197). Flying from Knoxville to Colorado in March is currently the most expensive (average of $278). 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

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Alternative routes for Knoxville to Colorado

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$72Average$144FlexibilityNo cancel feeOn-time88%
FrontierCheapest$75Average$159FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$218Average$460FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$232Average$545FlexibilityNo cancel feeOn-time69%
DeltaCheapest$248Average$324FlexibilityNo cancel feeOn-timeN/A

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