Flights from Knoxville to Denver

Our cheapest offers for flights from Knoxville to Denver

Here you can compare cheap flights from Knoxville (TYS) to Denver (DEN) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Denver. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Best option
Knoxville
Denver
Outbound
09/04/25
direct
G41401
03h 06min
Return
09/28/25
direct
G41407
02h 47min
Allegiant Air
$117
Knoxville
Denver
Outbound
09/04/25
direct
G41401
03h 06min
Return
09/28/25
direct
G41407
02h 47min
Allegiant Air
$120
Knoxville
Denver
Outbound
09/04/25
direct
G41401
03h 06min
Return
09/28/25
direct
G41407
02h 47min
Allegiant Air ?
$125
Knoxville
Denver
Outbound
09/04/25
direct
G41401
03h 06min
Return
09/28/25
direct
G41407
02h 47min
Allegiant Air
$154
Knoxville
Denver
Outbound
07/25/25
1 Stopover (HOU, IAH)
G41437, F93229
17h 38min
Return
08/17/25
direct
G41427
02h 45min
Allegiant Air, Frontier Airlines ?
$239
Knoxville
Denver
Outbound
07/25/25
2 Stopovers (IAD, AVL)
G41397, G41855, G40233
20h 31min
Return
08/17/25
direct
G41427
02h 45min
Allegiant Air
$241
Knoxville
Denver
Outbound
10/18/25
1 Stopover (ORD)
AA5195, AA1160
05h 24min
Return
11/17/25
1 Stopover (CLT)
AA3299, AA5208
06h 25min
American Airlines ?
$249
Knoxville
Denver
Outbound
10/18/25
1 Stopover (DFW)
AA0994, AA2357
05h 18min
Return
11/17/25
1 Stopover (CLT)
AA3299, AA5208
06h 25min
American Airlines ?
$267
Knoxville
Denver
Outbound
09/04/25
direct
UA1306
03h 12min
Return
09/28/25
1 Stopover (IAH)
UA0320, UA4887
06h 10min
United Airlines ?
$267
Knoxville
Denver
Outbound
09/19/25
direct
UA1306
03h 20min
Return
09/29/25
direct
UA2420
02h 50min
United Airlines ?
$271
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Knoxville to Denver

Favorite airline: e.g. Delta, Frontier Airlines
The most popular airline for flights from Knoxville to Denver is Delta.
Delta
26 %
Frontier Airlines
26 %
Allegiant Air
22 %
Direct flights are cheaper
Compared to direct flights, flights with a stopover on this route are on average 15 % more expensive.
non stop flight
1 stop
2 stops
03h 09min
10h 37min
13h 55min
$218
$255
$556
The favorite connection is non-stop
41 % of travelers decide to book a direct flight on this route.
Route
bookings
Direct flights
03h 09min, from $218
41 %
1 stopover Hartsfield-Jackson Atlanta International Airport, GA
06h 39min, from $276
24 %
1 stopover Orlando International Airport, FL
14h 19min, from $436
18 %

Important flight information

Flight information: Knoxville - Denver

Roundtrip from $116.50
Flight duration min. 03:30 / max. 03:35
Return flight duration min. 02:47/ max. 02:52
Distance 1868 km
Flights per week 17
Departure airport Airport Knoxville, TN (TYS)
Arrival airport Airport Denver International Airport, CO (DEN)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to Denver
Flight destinations with a similar price