Cheap Flights from Knoxville, TN to Denver, CO from $48

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On Cheapflightsplus.com you will find 9 direct and 236 connecting flights from Knoxville to Denver. You can compare airfare deals from 3 airlines and multiple travel sites from $48, 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.

Find One-Way and Round-Trip Knoxville to Denver Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $48 (one-way), $82 (round-trip).

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Best Flights from Knoxville to Denver Today

Take a look at the list of non stop flights and flights with layovers from Knoxville to Denver with the lowest price of $48. The fastest direct flight takes 3h 3m and the fastest connecting – 5h 35m.

Price	Departure	Arrival	Flight Duration	Airline	Flight
from $48 Find flight	15:54 Knoxville Mc Ghee Tyson	16:57 Denver Denver International	3h 3m	Allegiant Air	G41438
from $51 Find flight	15:54 Knoxville Mc Ghee Tyson	16:57 Denver Denver International	3h 3m	Allegiant Air	G43029
from $67 Find flight	10:00 Knoxville Mc Ghee Tyson	11:08 Denver Denver International	3h 8m	Allegiant Air	G43031
from $87 Find flight	17:25 Knoxville Mc Ghee Tyson	18:40 Denver Denver International	3h 15m	Frontier Airlines	F94369
from $109 Find flight	15:56 Knoxville Mc Ghee Tyson	16:59 Denver Denver International	3h 3m	Allegiant Air	G43058
from $120 Find flight	16:35 Knoxville Mc Ghee Tyson	17:50 Denver Denver International	3h 15m	United Airlines	UA1787
from $123 Find flight	16:40 Knoxville Mc Ghee Tyson	17:52 Denver Denver International	3h 12m	United Airlines	UA2745
from $189 Find flight	16:40 Knoxville Mc Ghee Tyson	17:52 Denver Denver International	3h 12m	United Airlines	UA1306
from $83 Find flight	11:01 Knoxville Mc Ghee Tyson	16:23 Denver Denver International	7h 22m layover 2h 53m - Minneapolis	Allegiant Air	G41414 SY655
from $101 Find flight	11:01 Knoxville Mc Ghee Tyson	11:24+1 день Denver Denver International	26h 23m layover 21h 59m - Minneapolis	Allegiant Air	G43064 SY1609
from $197 Find flight	07:00 Knoxville Mc Ghee Tyson	10:35 Denver Denver International	5h 35m layover 0h 48m - Chicago	United Airlines	UA1594 UA1599
from $118 Find flight	12:45 Knoxville Mc Ghee Tyson	07:16+1 день Denver Denver International	20h 31m layover 2h 23m - Washington D.C. 11h 46m - Fletcher	Allegiant Air	G41397 G41855 G4233
from $120 Find flight	08:52 Knoxville Mc Ghee Tyson	07:16+1 день Denver Denver International	24h 24m layover 9h 10m - Miami 7h 56m - Fletcher	Allegiant Air	G42120 G4254 G4233
from $125 Find flight	06:00 Knoxville Mc Ghee Tyson	07:16+1 день Denver Denver International	27h 16m layover 13h 56m - Orlando 6h 37m - Fletcher	Allegiant Air	G43039 G41844 G4233
from $126 Find flight	07:00 Knoxville Mc Ghee Tyson	07:10+1 день Denver Denver International	26h 10m layover 11h 34m - Clearwater 7h 47m - Covington	Allegiant Air	G43048 G4419 G4393
from $128 Find flight	08:30 Knoxville Mc Ghee Tyson	07:16+1 день Denver Denver International	24h 46m layover 4h 30m - Clearwater 13h 42m - Fletcher	Allegiant Air	G41007 G4266 G4233

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*Departure and arrival times - local. Prices indicated for one-way flights. Information updated on June 25, 2025

Flight Schedule Knoxville (Tennessee) to Denver (Colorado)

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	Flight Details	Flight Duration	Price
09:00 — 10:26	09:00 — 10:26 UA5673 United Airlines Knoxville — Denver	3h 26m	Find flight from$190
10:00 — 11:08	10:00 — 11:08 G43031 Allegiant Air Knoxville — Denver	3h 8m	Find flight from$67
15:54 — 16:57	15:54 — 16:57 G41438 Allegiant Air Knoxville — Denver	3h 3m	Find flight from$48
15:54 — 16:57	15:54 — 16:57 G43029 Allegiant Air Knoxville — Denver	3h 3m	Find flight from$51
15:56 — 16:59	15:56 — 16:59 G43058 Allegiant Air Knoxville — Denver	3h 3m	Find flight from$109
16:35 — 17:50	16:35 — 17:50 UA1787 United Airlines Knoxville — Denver	3h 15m	Find flight from$120
16:40 — 17:52	16:40 — 17:52 UA2745 United Airlines Knoxville — Denver	3h 12m	Find flight from$123
16:40 — 17:52	16:40 — 17:52 UA1306 United Airlines Knoxville — Denver	3h 12m	Find flight from$189
17:25 — 18:40	17:25 — 18:40 F94369 Frontier Airlines Knoxville — Denver	3h 15m	Find flight from$87
11:01 — 16:23	11:01 — 12:19 G41414 Allegiant Air Knoxville — Minneapolis 2h 53m stop 15:12 — 16:23 SY655 Sun Country Airlines Minneapolis — Denver	7h 22m including layover	Find flight from$83
11:01 — 13:17 +1 day	11:01 — 12:19 G43064 Allegiant Air Knoxville — Minneapolis 23h 47m stop 12:06 — 13:17 SY653 Sun Country Airlines Minneapolis — Denver	28h 16m including layover	Find flight from$87
06:00 — 07:16 +1 day	06:00 — 07:37 G43039 Allegiant Air Knoxville — Orlando 13h 56m stop 21:33 — 23:23 G41844 Allegiant Air Orlando — Fletcher 6h 37m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	27h 16m including layover	Find flight from$125
06:55 — 07:16 +1 day	06:55 — 08:15 G41410 Allegiant Air Knoxville — Austin 5h 7m stop 13:22 — 16:46 G41872 Allegiant Air Austin — Fletcher 13h 14m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	26h 21m including layover	Find flight from$133
07:00 — 07:10 +1 day	07:00 — 08:41 G43048 Allegiant Air Knoxville — Clearwater 11h 34m stop 20:15 — 22:28 G4419 Allegiant Air Clearwater — Covington 7h 47m stop 06:15 — 07:10 G4393 Allegiant Air Covington — Denver	26h 10m including layover	Find flight from$126
07:00 — 07:10 +1 day	07:00 — 08:41 G43038 Allegiant Air Knoxville — Clearwater 11h 34m stop 20:15 — 22:28 G4428 Allegiant Air Clearwater — Covington 7h 47m stop 06:15 — 07:10 G4393 Allegiant Air Covington — Denver	26h 10m including layover	Find flight from$129
08:30 — 07:16 +1 day	08:30 — 10:11 G41007 Allegiant Air Knoxville — Clearwater 4h 30m stop 14:41 — 16:18 G4266 Allegiant Air Clearwater — Fletcher 13h 42m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	24h 46m including layover	Find flight from$128
08:52 — 07:16 +1 day	08:52 — 10:53 G42120 Allegiant Air Knoxville — Miami 9h 10m stop 20:03 — 22:04 G4254 Allegiant Air Miami — Fletcher 7h 56m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	24h 24m including layover	Find flight from$120
09:02 — 17:54	09:02 — 10:51 G4865 Allegiant Air Knoxville — Punta Gorda 1h 46m stop 12:37 — 14:25 G4857 Allegiant Air Punta Gorda — Fletcher 2h 14m stop 16:39 — 17:54 G4227 Allegiant Air Fletcher — Denver	10h 52m including layover	Find flight from$129
09:02 — 07:16 +1 day	09:02 — 10:51 G4865 Allegiant Air Knoxville — Punta Gorda 1h 46m stop 12:37 — 14:25 G4857 Allegiant Air Punta Gorda — Fletcher 15h 35m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	24h 14m including layover	Find flight from$129
12:45 — 07:16 +1 day	12:45 — 14:23 G41397 Allegiant Air Knoxville — Washington D.C. 2h 23m stop 16:46 — 18:14 G41855 Allegiant Air Washington D.C. — Fletcher 11h 46m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	20h 31m including layover	Find flight from$118
12:45 — 16:07 +1 day	12:45 — 14:23 G41397 Allegiant Air Knoxville — Baltimore 22h 2m stop 12:25 — 14:06 SY194 Sun Country Airlines Baltimore — Minneapolis 54m stop 15:00 — 16:07 SY655 Sun Country Airlines Minneapolis — Denver	29h 22m including layover	Find flight from$132
14:28 — 13:17 +1 day	14:28 — 15:35 G444 Allegiant Air Knoxville — Las Vegas 2h 28m stop 18:03 — 23:12 SY108 Sun Country Airlines Las Vegas — Minneapolis 12h 54m stop 12:06 — 13:17 SY653 Sun Country Airlines Minneapolis — Denver	24h 49m including layover	Find flight from$174
14:29 — 17:01 +1 day	14:29 — 15:53 G443 Allegiant Air Knoxville — Las Vegas 1h 49m stop 17:42 — 22:51 SY108 Sun Country Airlines Las Vegas — Minneapolis 17h 3m stop 15:54 — 17:01 SY1609 Sun Country Airlines Minneapolis — Denver	28h 32m including layover	Find flight from$167
17:02 — 07:16 +1 day	17:02 — 18:13 G41437 Allegiant Air Knoxville — Houston 1h 50m stop 20:03 — 23:17 G4249 Allegiant Air Houston — Fletcher 6h 43m stop 06:00 — 07:16 G4233 Allegiant Air Fletcher — Denver	16h 14m including layover	Find flight from$135
18:10 — 11:33 +1 day	18:10 — 19:51 G43020 Allegiant Air Knoxville — Clearwater 1h 49m stop 21:40 — 23:37 G41567 Allegiant Air Clearwater — Appleton 10h 23m stop 10:00 — 11:33 G41559 Allegiant Air Appleton — Denver	19h 23m including layover	Find flight from$155

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times - local. Updated on June 25, 2025

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 21:30 from 1 Knoxville airport and arrive 05:45 to 21:30 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 21:30
Distance 1160 ml

The cheapest months to travel to Denver are july (from 65 $), august (from 69 $), may (from 72 $).

The most expensive months are december (from 368 $), february (from 323 $), january (from 323 $).

What is the lowest airfare Knoxville to Denver?

The cheapest plane ticket found by our users is $48. This airfare is for economy class on one-way G41438 flight by Allegiant Air for July 13, 2025 which leaves Mc Ghee Tyson in Knoxville at 15:54 am and arrives at Denver Denver International at 16:57.

Economy class

$48

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Business class

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First class

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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 $ 87 . And the most expensive tickets are offered by United Airlines airline - from $ 517.

Direct flights

There are 9 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 $48.

F9 - Frontier Airlines

from $87

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UA - United Airlines

from $120

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G4 - Allegiant Air

from $48

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Connecting Flights

There are 236 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 $83.

UA - United Airlines

from $197

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G4 - Allegiant Air

from $83

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Airports

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

Knoxville airports

Mc Ghee Tyson-TYS

from $48
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Denver airports

Denver International-DEN

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Arapahoe Co-APA

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Airplanes

There are flights to Denver from Knoxville by 3 airlines that use 0 aircraft brands. They range from huge modern airplanes to small-sized.

Top Domestic Destinations from Knoxville

You may also consider searching for discounted plane tickets to some other popular places from Knoxville within United States.

Knoxville — Orlando

from $73

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Knoxville — Las Vegas

from $74

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Knoxville — Chicago

from $76

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Knoxville — Denver

from $74

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Knoxville — Miami

from $66

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Knoxville — Boston

from $69

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Knoxville — Houston

from $54

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Knoxville — New Orleans

from $56

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Knoxville — Tampa

from $80

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Knoxville — Austin

from $54

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Top International Destinations from Knoxville

Our state-of-the art metasearch will definitely provide you with the best airfare on international flights. We’re proud to partner with many reliable travel suppliers located outside the US what gives us an opportunity to offer the most competitive prices on far destinations.

Knoxville — Cancun

from $69

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Knoxville — Panama City

from $61

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How to book a plane 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.
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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.
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