Cheap Flights from Denver, CO to Knoxville, TN from $71

Return flight: Knoxville – Denver

On Cheapflightsplus.com you will find 5 direct and 154 connecting flights from Denver to Knoxville. You can compare airfare deals from 4 airlines and multiple travel sites from $71, book and save on cheap plane tickets and last minute offers. Also check out DEN-TYS flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Denver to Knoxville 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: $71 (one-way), $122 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from Denver to Knoxville. 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 Arrival Flight Details Flight Duration Price
10:05 — 14:51
10:05 — 14:51 UA2420 United Airlines
Denver — Knoxville
2h 46m
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from$202
10:12 — 15:12
10:12 — 15:12 UA5501 United Airlines
Denver — Knoxville
3h
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from$302
10:36 — 15:19
10:36 — 15:19 F92374 Frontier Airlines
Denver — Knoxville
2h 43m
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from$71
12:19 — 17:06
12:19 — 17:06 G41401 Allegiant Air
Denver — Knoxville
2h 47m
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from$71
17:33 — 22:30
17:33 — 22:30 UA4798 United Airlines
Denver — Knoxville
2h 57m
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from$202
05:00 — 13:47
05:00 — 08:27 UA796 United Airlines
Denver — Houston
2h 3m stop
10:30 — 13:47 UA4887 United Airlines
Houston — Knoxville
6h 47m
including layover
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from$316
06:00 — 13:17
06:00 — 09:31 UA532 United Airlines
Denver — Chicago
57m stop
10:35 — 13:23 UA5836 United Airlines
Chicago — Knoxville
5h 17m
including layover
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from$215
06:05 — 13:25
06:05 — 09:36 UA532 United Airlines
Denver — Chicago
59m stop
10:35 — 13:25 UA3686 United Airlines
Chicago — Knoxville
5h 20m
including layover
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from$214
07:49 — 16:55
07:49 — 11:20 UA288 United Airlines
Denver — Chicago
2h 45m stop
14:05 — 16:55 UA5272 United Airlines
Chicago — Knoxville
7h 6m
including layover
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from$252
07:50 — 16:54
07:50 — 11:29 UA1811 United Airlines
Denver — Chicago
2h 40m stop
14:15 — 17:05 UA5379 United Airlines
Chicago — Knoxville
7h 4m
including layover
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from$266
08:00 — 19:30
08:00 — 13:19 UA1101 United Airlines
Denver — Washington D.C.
4h 26m stop
17:45 — 19:30 UA4914 United Airlines
Washington D.C. — Knoxville
9h 30m
including layover
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from$368
08:00 — 14:40
+1 day
08:00 — 13:19 UA1101 United Airlines
Denver — Washington D.C.
23h 36m stop
12:55 — 14:40 UA4249 United Airlines
Washington D.C. — Knoxville
28h 40m
including layover
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from$368
09:40 — 22:36
09:40 — 13:18 UA2329 United Airlines
Denver — Chicago
6h 33m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
10h 56m
including layover
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from$294
09:41 — 16:54
09:40 — 13:12 UA2329 United Airlines
Denver — Chicago
55m stop
14:15 — 17:05 UA5379 United Airlines
Chicago — Knoxville
5h 13m
including layover
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from$215
11:20 — 22:36
11:20 — 14:55 UA2312 United Airlines
Denver — Chicago
4h 56m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
9h 16m
including layover
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from$294
11:22 — 20:02
11:22 — 14:50 UA1402 United Airlines
Denver — Houston
1h 55m stop
16:45 — 20:02 UA4900 United Airlines
Houston — Knoxville
6h 40m
including layover
Find flight
from$311
12:00 — 20:02
12:00 — 15:28 UA738 United Airlines
Denver — Houston
1h 17m stop
16:45 — 20:02 UA4900 United Airlines
Houston — Knoxville
6h 2m
including layover
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from$311
13:25 — 22:24
13:25 — 16:56 UA617 United Airlines
Denver — Chicago
2h 42m stop
19:40 — 22:24 UA454 United Airlines
Chicago — Knoxville
6h 59m
including layover
Find flight
from$312
13:30 — 20:35
13:30 — 17:01 UA617 United Airlines
Denver — Chicago
49m stop
17:50 — 20:35 UA1238 United Airlines
Chicago — Knoxville
5h 5m
including layover
Find flight
from$267
15:24 — 22:24
15:24 — 18:55 UA1583 United Airlines
Denver — Chicago
45m stop
19:40 — 22:24 UA454 United Airlines
Chicago — Knoxville
5h
including layover
Find flight
from$214
15:41 — 23:30
15:41 — 19:05 UA489 United Airlines
Denver — Houston
1h 8m stop
20:13 — 23:30 UA4810 United Airlines
Houston — Knoxville
5h 49m
including layover
Find flight
from$316
18:10 — 09:59
+1 day
18:00 — 23:18 UA2408 United Airlines
Denver — Washington D.C.
8h 52m stop
08:45 — 10:32 UA4257 United Airlines
Washington D.C. — Knoxville
13h 49m
including layover
Find flight
from$372
18:10 — 14:43
+1 day
18:10 — 23:30 UA2408 United Airlines
Denver — Washington D.C.
13h 25m stop
12:55 — 14:43 UA4251 United Airlines
Washington D.C. — Knoxville
18h 33m
including layover
Find flight
from$372
20:29 — 22:36
+1 day
20:29 — 23:59 UA377 United Airlines
Denver — Chicago
19h 52m stop
19:51 — 22:36 UA1156 United Airlines
Chicago — Knoxville
24h 7m
including layover
Find flight
from$308
20:30 — 16:54
+1 day
20:30 — 23:58 UA377 United Airlines
Denver — Chicago
14h 12m stop
14:10 — 16:54 UA3592 United Airlines
Chicago — Knoxville
18h 24m
including layover
Find flight
from$311
23:59 — 10:32
+1 day
23:59 — 05:13 UA1712 United Airlines
Denver — Washington D.C.
3h 32m stop
08:45 — 10:32 UA4257 United Airlines
Washington D.C. — Knoxville
8h 33m
including layover
Find flight
from$367
23:59 — 09:59
+1 day
23:59 — 05:16 UA1924 United Airlines
Denver — Washington D.C.
2h 59m stop
08:15 — 09:59 UA4257 United Airlines
Washington D.C. — Knoxville
8h
including layover
Find flight
from$377
17:28 — 17:24
+1 day
17:28 — 20:24 SY658 Sun Country Airlines
Denver — Minneapolis
10h 36m stop
07:00 — 11:22 SY343 Sun Country Airlines
Minneapolis — Sanford
4h 26m stop
15:48 — 17:24 G43030 Allegiant Air
Sanford — Knoxville
21h 56m
including layover
Find flight
from$242
19:05 — 19:11
+1 day
19:05 — 22:03 SY658 Sun Country Airlines
Denver — Minneapolis
8h 44m stop
06:47 — 11:05 SY213 Sun Country Airlines
Minneapolis — Clearwater
6h 26m stop
17:31 — 19:11 G43045 Allegiant Air
Clearwater — Knoxville
22h 6m
including layover
Find flight
from$259
19:05 — 19:31
+1 day
19:05 — 22:03 SY658 Sun Country Airlines
Denver — Minneapolis
11h 57m stop
10:00 — 14:15 SY343 Sun Country Airlines
Minneapolis — Sanford
3h 37m stop
17:52 — 19:31 G43063 Allegiant Air
Sanford — Knoxville
22h 26m
including layover
Find flight
from$261
*Departure and arrival times - local. Updated on May 9, 2025

Flight Information

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

Distance between Denver and Knoxville is 1866 miles. Time difference between the cities is 2h. Airplanes depart 05:00 to 23:59 from 2 Denver airports and arrive 05:00 to 23:59 to 1 Knoxville airport. Average flight time is 2h 47m.

  • The fastest flight 2h 43m
  • Average flight time 2h 47m
  • The earliest flight 05:00
  • The latest flight 23:59
  • Distance 1160 ml

The cheapest months to travel to Knoxville are november (from 71 $), january (from 71 $), december (from 203 $).

The most expensive months are february (from 305 $), december (from 203 $), january (from 71 $).

What is the lowest airfare Denver to Knoxville?

The cheapest plane ticket found by our users is $71. This airfare is for economy class on one-way G41401 flight by Allegiant Air for January 12, 2025 which leaves Denver International in Denver at 12:19 am and arrives at Knoxville Mc Ghee Tyson at 17:06.

Economy class
$71
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Business class
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First class
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Popular Airlines on the Route

The flight Denver — Knoxville is served by 4 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 1 departures per week at the price of from $ 71 . And the most expensive tickets are offered by United Airlines airline - from $ 684.

Direct flights

There are 5 nonstop flights on the route. The fastest direct flight is F92374 by Frontier Airlines takes 2h 43m and the cheapest is G41401 by Allegiant Air for $71.

  • F9 - Frontier Airlines
    from $71
    Find
  • UA - United Airlines
    from $202
    Find
  • G4 - Allegiant Air
    from $71
    Find
See more direct flights

Connecting Flights

There are 154 flights with layovers on the route. The fastest connecting flight is UA1583 by United Airlines takes 5h and the cheapest is G41401 by Allegiant Air for $214.

  • SY - Sun Country Airlines
    from $242
    Find
  • UA - United Airlines
    from $214
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See more connecting flights

Airports

You can fly from Denver to Knoxville from 2 airports (Denver International, Arapahoe Co).

Denver airports

  • Denver International-DEN
    from $71
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  • Arapahoe Co-APA
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Knoxville airports

  • Mc Ghee Tyson-TYS
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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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