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Cheap flights from Knoxville to Denver from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Denver departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Knoxville to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$176Frontier
Mon, Mar 2 - Fri, Mar 6
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$187Frontier
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
2:37 pm - 7:18 pm
DEN
-
TYS
2h 41mnonstop
$190Frontier
Mon, Feb 16 - Mon, Feb 23
Multiple Airlines Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Multiple Airlines Logo
11:59 pm - 10:34 am
DEN
-
TYS
32h 35m
2 stops
$197Multiple Airlines
Mon, Mar 2 - Fri, Mar 6
Frontier Logo
4:28 pm - 6:00 pm
TYS
-
DEN
3h 32mnonstop
Frontier Logo
10:45 am - 3:33 pm
DEN
-
TYS
2h 48mnonstop
$198Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
4:20 pm - 5:52 pm
TYS
-
DEN
3h 32mnonstop
Frontier Logo
10:40 am - 3:25 pm
DEN
-
TYS
2h 45mnonstop
$199Frontier
Mon, Mar 9 - Mon, Mar 23
Multiple Airlines Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Multiple Airlines Logo
6:00 am - 11:32 pm
DEN
-
TYS
15h 32m
1 stop
$204Multiple Airlines
Mon, Mar 2 - Mon, Mar 9
Frontier Logo
8:13 pm - 9:44 pm
TYS
-
DEN
3h 31mnonstop
Frontier Logo
2:46 pm - 7:27 pm
DEN
-
TYS
2h 41mnonstop
$206Frontier
Mon, Feb 16 - Fri, Feb 20
Multiple Airlines Logo
5:56 pm - 10:22 am
TYS
-
DEN
18h 26m
1 stop
Multiple Airlines Logo
1:23 pm - 6:06 pm
DEN
-
TYS
2h 43mnonstop
$207Multiple Airlines
Sun, Feb 22 - Fri, Feb 27
Multiple Airlines Logo
8:12 pm - 9:43 pm
TYS
-
DEN
3h 31mnonstop
Multiple Airlines Logo
12:59 am - 9:18 pm
DEN
-
TYS
42h 19m
2 stops
$209Multiple Airlines
Fri, Feb 20 - Tue, Feb 24

United Airlines flights from Knoxville to Denver

Our best United Airlines deals on Knoxville to Denver flight tickets
United Airlines
Mar 3
TYS8:45 amKnoxville McGhee Tyson
3h 50m
DEN10:35 amDenver Intl
Mar 9
DEN10:15 amDenver Intl
2h 47m
TYS3:02 pmKnoxville McGhee Tyson
$229
United Airlines
Mar 3
TYS1:50 pmKnoxville McGhee Tyson
7h 58m
1 stop
DEN7:48 pmDenver Intl
Mar 9
DEN10:15 amDenver Intl
2h 47m
TYS3:02 pmKnoxville McGhee Tyson
$239
United Airlines
Feb 20
TYS6:45 amKnoxville McGhee Tyson
5h 48m
1 stop
DEN10:33 amDenver Intl
Feb 23
DEN5:31 pmDenver Intl
2h 59m
TYS10:30 pmKnoxville McGhee Tyson
$289

American Airlines flights from Knoxville to Denver

Our best American Airlines deals on Knoxville to Denver flight tickets
American Airlines
Mar 3
TYS4:29 pmKnoxville McGhee Tyson
8h 11m
1 stop
DEN10:40 pmDenver Intl
Mar 10
DEN12:33 pmDenver Intl
9h 26m
1 stop
TYS11:59 pmKnoxville McGhee Tyson
$249
American Airlines
Feb 20
TYS4:15 pmKnoxville McGhee Tyson
5h 59m
1 stop
DEN8:14 pmDenver Intl
Feb 24
DEN9:22 amDenver Intl
5h 09m
1 stop
TYS4:31 pmKnoxville McGhee Tyson
$274

momondo 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, momondo users made 832,500 searches. Data last updated February 7, 2026.
Use the filters below to find and compare flights from Knoxville to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 3/2

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Fri 3/6

10:40 am-3:25 pm

Nonstop2h 45m

$176

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 3/2

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Mon 3/9

10:40 am-3:25 pm

Nonstop2h 45m

$187

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 2/16

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Mon 2/23

2:37 pm-7:18 pm

Nonstop2h 41m

$190

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 3/2

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Fri 3/6

11:59 pm-10:34 am

2 stops32h 35m

$197

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-6:00 pm

Nonstop3h 32m

Denver Intl

Sun 4/19

10:45 am-3:33 pm

Nonstop2h 48m

$198

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 3/9

4:20 pm-5:52 pm

Nonstop3h 32m

Denver Intl

Mon 3/23

10:40 am-3:25 pm

Nonstop2h 45m

$199

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 3/2

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Mon 3/9

6:00 am-11:32 pm

1 stop15h 32m

$204

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Mon 2/16

8:13 pm-9:44 pm

Nonstop3h 31m

Denver Intl

Fri 2/20

2:46 pm-7:27 pm

Nonstop2h 41m

$206

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Sun 2/22

5:56 pm-10:22 am

1 stop18h 26m

Denver Intl

Fri 2/27

1:23 pm-6:06 pm

Nonstop2h 43m

$207

KnoxvilleDenver

TYS - DEN

TYSDEN

Knoxville McGhee Tyson

Fri 2/20

8:12 pm-9:43 pm

Nonstop3h 31m

Denver Intl

Tue 2/24

12:59 am-9:18 pm

2 stops42h 19m

$209

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Denver from

How to get the cheapest flight ticket from Knoxville to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Knoxville is in November. Flight prices, which tend to average around $223, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in November, then you should wait until May to fly from Knoxville, when ticket prices are also cheap, with an average price of $233.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Thursday when prices can be found for as low as $269. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Monday, with ticket prices averaging around $461.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the evening when flights can be purchased for as low as $210. Flights in the morning are often more expensive with an average ticket price of $483.

What is the cheapest Knoxville McGhee Tyson to Denver Intl flight route?

Fly from Knoxville McGhee Tyson to Denver Intl for the best Knoxville McGhee Tyson - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $264 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Knoxville for as low as $214 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Denver Intl flights?

There are 4 cabin classes available to choose from on Knoxville McGhee Tyson to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Denver flight prices changed over time?

As of February 2026, prices for Knoxville to Denver flights are approximately 31% more expensive when compared to flights at the same time last year.

When to book flights from Knoxville to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Denver according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Denver (TYS to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Denver

Best Price Found

$151

Fastest flight time

3h 15m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Knoxville in the past 72 hours is $151. The best round-trip flight deal from Knoxville to Denver found on momondo in the last 72 hours is $255.
The fastest flight from Knoxville to Denver takes 3h 15m
Direct flights go from Knoxville to Denver every day.
There is 1 airport in Denver. From Knoxville there are direct flights to Denver Intl (DEN).
Search flight deals

  • How far is Knoxville McGhee Tyson to Denver Intl by plane?

    The distance between Knoxville McGhee Tyson and Denver Intl is about 1174.7 mi. A reasonable flight in good conditions will take 3h 15m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Denver Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Denver Intl Airport are updated daily.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Denver Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Denver Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Denver Intl Airport.

  • What documentation or ID do you need to fly to Denver Intl Airport?

    The travel and health documents you'll need for your trip to Denver Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Denver Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Denver?

  • What is the most popular airline from Knoxville to Denver?

Best airlines flying from Knoxville to Denver

Compare and see reviews for airlines that fly from Knoxville to Denver with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $61Free CancellationRating
7.2
710 reviews
Search Allegiant Air flights
FrontierPriceFrom $68Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $128Free CancellationRating
7.9
8,172 reviews
Search Delta flights
American AirlinesPriceFrom $218Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
United AirlinesPriceFrom $229Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
SouthwestPriceFrom $248Free CancellationRating
8.0
4,280 reviews
Search Southwest flights

  • United Airlines Flights From Knoxville to Denver

    United Airlines is one of the most popular airlines flying from Knoxville to Denver, operating 12 flights/week on average for this route. A good United Airlines flight deal for Knoxville to Denver starts from $229 round-trip, up to an average price of $359. Our users have rated United Airlines at 7.4/10.

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Longmont
Cripple Creek
Boulder
Keystone
Greeley
Lakewood
Westminster
Thornton
Frisco
Copper Mountain
Winter Park
Centennial
Englewood
Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Denver?

It is quick and easy to find Knoxville to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

Can I find flights from Knoxville to Denver with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Denver from Knoxville with this policy.

How can momondo help me find flights from Knoxville to Denver?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Knoxville to Denver.

I’m not ready to book a flight from Knoxville to Denver right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Knoxville to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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