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Cheap flights from Knoxville to Denver from $58

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 5/29. 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

These are some of the best round-trip flight deals from Knoxville to Denver that have been recently found on momondo from popular airlines, departing in the coming months.
Allegiant Air Logo
3:54 pm - 4:57 pmTYS-DEN
3h 03mnonstop
Allegiant Air Logo
5:42 pm - 10:27 pmDEN-TYS
2h 45mnonstop
$120Allegiant Air
Find Deal
Thu, Jul 3 - Thu, Jul 10
Allegiant Air Logo
7:00 am - 8:06 amTYS-DEN
3h 06mnonstop
Allegiant Air Logo
8:56 am - 1:43 pmDEN-TYS
2h 47mnonstop
$131Allegiant Air
Find Deal
Thu, Sep 4 - Sun, Sep 14
Frontier Logo
5:25 pm - 6:40 pmTYS-DEN
3h 15mnonstop
Frontier Logo
11:41 am - 4:29 pmDEN-TYS
2h 48mnonstop
$161Frontier
Find Deal
Thu, Aug 14 - Sun, Aug 17
Frontier Logo
5:30 pm - 7:01 pmTYS-DEN
3h 31mnonstop
Frontier Logo
11:41 am - 4:35 pmDEN-TYS
2h 54mnonstop
$177Frontier
Find Deal
Thu, May 22 - Sun, May 25
United Airlines Logo
4:52 pm - 6:08 pmTYS-DEN
3h 16mnonstop
United Airlines Logo
1:25 pm - 10:40 pmDEN-TYS
7h 15m1 stop
$239United Airlines
Find Deal
Thu, May 29 - Wed, Jun 4
American Airlines Logo
5:05 am - 8:36 amTYS-DEN
5h 31m1 stop
American Airlines Logo
11:59 pm - 8:24 amDEN-TYS
6h 25m1 stop
$249American Airlines
Find Deal
Thu, May 22 - Tue, Jun 3
Delta Logo
4:22 pm - 9:57 pmTYS-DEN
7h 35m1 stop
Delta Logo
12:55 am - 10:23 amDEN-TYS
7h 28m1 stop
$264Delta
Find Deal
Tue, May 13 - Mon, May 19
Delta Logo
5:57 pm - 10:29 pmTYS-DEN
6h 32m1 stop
Delta Logo
12:59 am - 9:53 amDEN-TYS
6h 54m1 stop
$274Delta
Find Deal
Thu, Jun 12 - Sun, Jun 15
American Airlines Logo
6:28 pm - 11:59 pmTYS-DEN
7h 31m1 stop
American Airlines Logo
11:59 pm - 8:24 amDEN-TYS
6h 25m1 stop
$279American Airlines
Find Deal
Fri, May 16 - Sun, May 18
United Airlines Logo
4:40 pm - 5:52 pmTYS-DEN
3h 12mnonstop
United Airlines Logo
10:25 am - 3:15 pmDEN-TYS
2h 50mnonstop
$289United Airlines
Find Deal
Wed, Aug 20 - Wed, Aug 27

Allegiant Air flights from Knoxville to Denver

Our best Allegiant Air deals on Knoxville to Denver flight tickets
Allegiant Air
Jul 3
TYS3:54 pmKnoxville McGhee Tyson
3h 03m
DEN4:57 pmDenver Intl
Jul 10
DEN5:42 pmDenver Intl
2h 45m
TYS10:27 pmKnoxville McGhee Tyson
Allegiant Air
Sep 4
TYS7:00 amKnoxville McGhee Tyson
3h 06m
DEN8:06 amDenver Intl
Sep 14
DEN8:56 amDenver Intl
2h 47m
TYS1:43 pmKnoxville McGhee Tyson
Allegiant Air
May 29
TYS3:52 pmKnoxville McGhee Tyson
3h 08m
DEN5:00 pmDenver Intl
Jun 1
DEN5:50 pmDenver Intl
2h 45m
TYS10:35 pmKnoxville McGhee Tyson

Frontier flights from Knoxville to Denver

Our best Frontier deals on Knoxville to Denver flight tickets
Frontier
Aug 14
TYS5:25 pmKnoxville McGhee Tyson
3h 15m
DEN6:40 pmDenver Intl
Aug 17
DEN11:41 amDenver Intl
2h 48m
TYS4:29 pmKnoxville McGhee Tyson
Frontier
May 22
TYS5:30 pmKnoxville McGhee Tyson
3h 31m
DEN7:01 pmDenver Intl
May 25
DEN11:41 amDenver Intl
2h 54m
TYS4:35 pmKnoxville McGhee Tyson
Frontier
Jul 10
TYS5:25 pmKnoxville McGhee Tyson
3h 15m
DEN6:40 pmDenver Intl
Jul 17
DEN11:41 amDenver Intl
2h 48m
TYS4:29 pmKnoxville McGhee Tyson

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 August. Flight prices, which tend to average around $157, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in August, then you should wait until July to fly from Knoxville, when ticket prices are also cheap, with an average price of $196.

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 $282. 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 Tuesday, with ticket prices averaging around $496.

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

The cheapest time of day to fly to Denver is at noon when flights can be purchased for as low as $112. Flights in the morning are often more expensive with an average ticket price of $416.

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 9 weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $239 when searching 9 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 $151 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 April 2025, prices for Knoxville to Denver flights are approximately 34% cheaper 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

$58

Fastest flight time

3h 03m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Knoxville in the past 72 hours is $58. The best round-trip flight deal from Knoxville to Denver found on momondo in the last 72 hours is $120.
The fastest flight from Knoxville to Denver takes 3h 03m
Direct flights go from Knoxville to Denver every day.
There is 1 airport near Denver: Denver Intl (DEN)

  • 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 03m.

  • 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
FrontierPriceFrom $62Free CancellationRating
5.9
3,287 reviews
Search Frontier flights
Allegiant AirPriceFrom $68Free CancellationRating
7.3
734 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $148Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
8,696 reviews
Search United Airlines flights
DeltaPriceFrom $227Free CancellationRating
8.0
7,934 reviews
Search Delta flights
  • United Airlines Flights From Knoxville to Denver

    United Airlines is one of the most popular airlines flying from Knoxville to Denver, operating 5 flights/week on average for this route. A good United Airlines flight deal for Knoxville to Denver starts from $219 round-trip, up to an average price of $423. 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
Estes Park
Breckenridge
Black Hawk
Aurora
Fort Collins
Keystone
Longmont
Cripple Creek
Lakewood
Boulder
Westminster
Manitou Springs
Greeley
Thornton
Winter Park
Silverthorne
Sterling
Copper Mountain
Golden
Centennial

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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1 adult
Mon 5/5
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