$61+ Cheap flights from Denver to Knoxville (DEN - TYS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — TYS
Jul 15 — Jul 221
Round-trip
1 adult, Economy
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Find cheap flights from Denver to Knoxville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Denver Intl to Knoxville McGhee Tyson are usually found in August or November, booked 83 days in advance, depart on a Thursday or Sunday and return on a Thursday
Cheap flight deals from Denver to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Denver to KnoxvilleExplore the most affordable flight options available from Denver to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
Explore the most affordable flight options available from Denver to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:26 am
DEN
- TYS
Nonstop2h 45m
Allegiant Air
Sun 10/256:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$125
This Cheapflightsfares deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/178:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Sun 9/207:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$129
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 7/267:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$130
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Sun 9/277:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$139
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 8/97:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Thu 9/177:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 8/27:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$156
Best flights from Denver to KnoxvilleDiscover carefully curated flight deals from Denver to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
Discover carefully curated flight deals from Denver to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 15, 2026.
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/164:30 pm
DEN
- TYS
1 stop5h 20m
Delta
Thu 9/175:45 am
TYS
- DEN
1 stop7h 15m
Delta
Deal found 6/14![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:50 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Fri 9/184:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/13![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:55 pm
DEN
- TYS
2 stops13h 30m
Southwest
Thu 9/177:10 am
TYS
- DEN
2 stops8h 25m
Southwest
Deal found 6/13![Southwest logo]()
$455
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/44:33 pm
DEN
- TYS
1 stop5h 19m
Delta
Tue 9/85:30 am
TYS
- DEN
1 stop5h 11m
Delta
Deal found 6/10![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Tue 9/84:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/215:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Sun 8/234:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/10![United Airlines logo]()
$440
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/45:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Sun 9/64:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/12![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:00 am
DEN
- TYS
1 stop6h 37m
United Airlines
Tue 9/89:00 am
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/14![United Airlines logo]()
$450
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:59 pm
DEN
- TYS
1 stop8h 43m
United Airlines
Fri 8/149:00 am
TYS
- DEN
Nonstop3h 20m
United Airlines
Deal found 6/12![United Airlines logo]()
$467
Last-minute flights from Denver to KnoxvilleDiscover last-minute flight deals from Denver to Knoxville. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Knoxville. Data last updated June 15, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/129:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 7/197:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$228
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 7/267:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$130
This CheapOair deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Thu 7/307:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Sun 7/263:38 pm
TYS
- DEN
1 stop25h 30m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:34 pm
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Sun 8/27:00 am
TYS
- DEN
Nonstop3h 11m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$223
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Sun 8/27:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Mon 8/36:30 am
TYS
- DEN
1 stop27h 19m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:34 pm
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Sun 8/27:00 am
TYS
- DEN
Nonstop3h 11m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$234
One-way flights from Denver to KnoxvilleSearch for one-way flight options from Denver to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
Search for one-way flight options from Denver to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$61
This CheapOair deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$63
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$81
This Frontier deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Deal found 6/12![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/269:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$107
This Super.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:34 pm
DEN
- TYS
Nonstop2h 50m
Frontier
Deal found 6/13![Frontier logo]()
$109
Find flight deals from Denver to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $130 (CheapOair) |
One-way from | $61 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $312 |
Good round-trip deal | $160 or less |
Good one-way deal | $98 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Denver to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 15, 2026.
Use the filters below to find and compare flights from Denver to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Wed 9/16
4:30 pm-11:50 pm
1 stop5h 20m
Knoxville McGhee Tyson
Thu 9/17
5:45 am-11:00 am
1 stop7h 15m
$351
Quickest round-trip
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Sun 9/13
5:50 pm-10:44 pm
Nonstop2h 54m
Knoxville McGhee Tyson
Fri 9/18
4:50 pm-6:10 pm
Nonstop3h 20m
$367
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Fri 9/4
4:33 pm-11:52 pm
1 stop5h 19m
Knoxville McGhee Tyson
Tue 9/8
5:30 am-8:41 am
1 stop5h 11m
$370
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Fri 9/4
5:35 pm-10:29 pm
Nonstop2h 54m
Knoxville McGhee Tyson
Tue 9/8
4:50 pm-6:10 pm
Nonstop3h 20m
$409
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Fri 8/21
5:35 pm-10:29 pm
Nonstop2h 54m
Knoxville McGhee Tyson
Sun 8/23
4:50 pm-6:10 pm
Nonstop3h 20m
$440
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Fri 9/4
5:35 pm-10:29 pm
Nonstop2h 54m
Knoxville McGhee Tyson
Sun 9/6
4:50 pm-6:10 pm
Nonstop3h 20m
$441
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Thu 9/3
6:00 am-2:37 pm
1 stop6h 37m
Knoxville McGhee Tyson
Tue 9/8
9:00 am-10:20 am
Nonstop3h 20m
$450
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Sun 9/13
9:55 pm-1:25 pm
2 stops13h 30m
Knoxville McGhee Tyson
Thu 9/17
7:10 am-1:35 pm
2 stops8h 25m
$455
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Fri 8/7
11:59 pm-10:42 am
1 stop8h 43m
Knoxville McGhee Tyson
Fri 8/14
9:00 am-10:20 am
Nonstop3h 20m
$467
Cheapest one-way
DenverKnoxville
DEN - TYS
DENTYS
Denver Intl
Tue 9/8
6:00 am-2:20 pm
1 stop6h 20m
$120
Showing 1-10 of 19 resultsSorted by cheapest first
Compare providers for flights from Denver to Knoxville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Knoxville in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Denver-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Denver-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Denver-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Denver to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Denver with our price prediction graph.
DEN-TYS
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Denver to Knoxville
Prices
Airlines
How far ahead should I book a flight from Denver to Knoxville?
The price you pay for your flight from Denver to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 82 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Denver to Knoxville?
Currently, August is the cheapest month in which you can book a flight from Denver to Knoxville (average of $155). Flying from Denver to Knoxville in March is currently the most expensive (average of $387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from DEN to TYS?
Find hourly flight availability from Denver to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 15, 2026.
When flying from Denver to Knoxville, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Knoxville
Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated June 15, 2026.
Read reviews from past customers who have flown Southwest,United Airlines, andAllegiant Air from Denver to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Comfort
8.0
Food
7.0
Entertainment
7.5
Crew
8.6
Overall
7.9
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Denver to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa
Oak Ridge
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Alternative routes for Denver to Knoxville
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Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Denver to Knoxville by cabin class
Find flights from Denver to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Denver and Knoxville flights
Browse other Denver and Knoxville flight options. Last updated on June 15, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on June 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Denver to Knoxville
Discover the top 6 airlines that operate flights from Denver to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$141 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$84 | Average$209 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$267 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$357 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$228 | Average$402 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$393 | FlexibilityNo cancel fee | On-time63% |