Cheap Flights from Knoxville, TN to Denver, CO from $62

Return flight: Denver – Knoxville

On Cheapflightsplus.com you will find 11 direct and 361 connecting flights from Knoxville to Denver. You can compare airfare deals from 3 airlines and multiple travel sites from $62, book and save on cheap plane tickets and last minute offers. Also check out TYS-DEN flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Knoxville to Denver depends on and how to choose the most interesting flight option for you.

Distance between Knoxville and Denver is 1866 miles. Time difference between the cities is 2h. Airplanes depart 05:45 to 21:34 from 1 Knoxville airport and arrive 05:45 to 21:34 to 2 Denver airports. Average flight time is 3h 12m.

  • The fastest flight 3h 3m
  • Average flight time 3h 12m
  • The earliest flight 05:45
  • The latest flight 21:34
  • Distance 1160 ml

The cheapest months to travel to Denver are july (from 62 $), august (from 66 $), may (from 68 $).

The most expensive months are december (from 350 $), february (from 307 $), january (from 307 $).

What is the lowest airfare Knoxville to Denver?

The cheapest plane ticket found by our users is $62. This airfare is for economy class on one-way G41438 flight by Allegiant Air for July 6, 2025 which leaves Mc Ghee Tyson in Knoxville at 15:54 am and arrives at Denver Denver International at 16:57.

Economy class
$62
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Business class
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First class
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Flight Schedule Knoxville (Tennessee) to Denver (Colorado)

09:00 — 10:26
3h 26m flight time
Find flight
from$235
Knoxville — Denver
UA5673 United Airlines
10:00 — 11:08
3h 8m flight time
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from$85
Knoxville — Denver
G43031 Allegiant Air
11:01 — 16:23
7h 22m flight time
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from$105
11:01 — 12:19 Knoxville — Minneapolis
G41414 Allegiant Air
2h 53m stop
15:12 — 16:23 Minneapolis — Denver
SY655 Sun Country Airlines
11:01 — 13:17+1day
28h 16m flight time
Find flight
from$111
11:01 — 12:19 Knoxville — Minneapolis
G43064 Allegiant Air
23h 47m stop
12:06 — 13:17 Minneapolis — Denver
SY653 Sun Country Airlines
11:01 — 11:22+1day
26h 21m flight time
Find flight
from$125
11:01 — 12:19 Knoxville — Minneapolis
G41414 Allegiant Air
21h 53m stop
10:12 — 11:22 Minneapolis — Denver
SY1609 Sun Country Airlines
11:01 — 11:24+1day
26h 23m flight time
Find flight
from$128
11:01 — 12:19 Knoxville — Minneapolis
G43064 Allegiant Air
21h 59m stop
10:18 — 11:24 Minneapolis — Denver
SY1609 Sun Country Airlines
11:01 — 15:59
6h 58m flight time
Find flight
from$144
11:01 — 12:19 Knoxville — Minneapolis
G43064 Allegiant Air
2h 29m stop
14:48 — 15:59 Minneapolis — Denver
SY655 Sun Country Airlines
15:46 — 16:51
3h 5m flight time
Find flight
from$90
Knoxville — Denver
G41419 Allegiant Air
15:54 — 16:57
3h 3m flight time
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from$62
Knoxville — Denver
G41438 Allegiant Air
15:54 — 16:57
3h 3m flight time
Find flight
from$66
Knoxville — Denver
G43029 Allegiant Air
15:56 — 16:59
3h 3m flight time
Find flight
from$139
Knoxville — Denver
G43058 Allegiant Air
16:35 — 17:50
3h 15m flight time
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from$153
Knoxville — Denver
UA1787 United Airlines
16:40 — 17:52
3h 12m flight time
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from$157
Knoxville — Denver
UA2745 United Airlines
16:40 — 17:52
3h 12m flight time
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from$240
Knoxville — Denver
UA1306 United Airlines
17:25 — 18:40
3h 15m flight time
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from$74
Knoxville — Denver
F94369 Frontier Airlines
Full flight schedule will help you in detecting at what time planes fly from Knoxville to Denver. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 16, 2025.

Popular Airlines on the Route

The flight Knoxville — Denver is served by 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 1 departures per week at the price of from $ 74 . And the most expensive tickets are offered by United Airlines airline - from $ 962.

Direct flights

There are 11 nonstop flights on the route. The fastest direct flight is G41438 by Allegiant Air takes 3h 3m and the cheapest is G41438 by Allegiant Air for $62.

  • F9 - Frontier Airlines
    from $74
    Find
  • UA - United Airlines
    from $153
    Find
  • G4 - Allegiant Air
    from $62
    Find
See more direct flights

Connecting Flights

There are 361 flights with layovers on the route. The fastest connecting flight is UA1594 by United Airlines takes 5h 35m and the cheapest is G41438 by Allegiant Air for $105.

  • UA - United Airlines
    from $250
    Find
  • G4 - Allegiant Air
    from $105
    Find
See more connecting flights

Airports

You can fly from Knoxville to Denver from 1 airports (Mc Ghee Tyson).

Knoxville airports

  • Mc Ghee Tyson-TYS
    from $62
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Denver airports

  • Denver International-DEN
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  • Arapahoe Co-APA
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How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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