$67+ Cheap flights from Knoxville to Denver (TYS - DEN)
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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
May 1 — May 81
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Denver 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 Knoxville McGhee Tyson to Denver Intl are usually found in November or October, booked 45 days in advance, depart on a Thursday or Sunday and return on a Thursday
Cheap flight deals from Knoxville to Denver
Cheapest
Best
Last-minute
One-way
Cheapest flights from Knoxville to DenverExplore the most affordable flight options available from Knoxville to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
Explore the most affordable flight options available from Knoxville to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 1, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 9/137:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/208:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 3/27![Allegiant Air logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 8/218:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Mon 8/242:46 pm
DEN
- TYS
Nonstop2h 51m
Frontier
Deal found 3/29![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 7/27:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 7/129:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 3/29![Allegiant Air logo]()
$149
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 5/217:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Sun 5/249:11 am
DEN
- TYS
Nonstop2h 48m
Allegiant Air
Deal found 3/31![Allegiant Air logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 7/27:00 am
TYS
- DEN
Nonstop3h 11m
Multiple Airlines
Wed 7/82:46 pm
DEN
- TYS
Nonstop2h 51m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 7/57:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 7/129:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 3/29![Allegiant Air logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/234:28 pm
TYS
- DEN
Nonstop3h 32m
Frontier
Thu 4/3010:45 am
DEN
- TYS
Nonstop2h 48m
Frontier
Deal found 3/31![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 8/288:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Mon 8/312:46 pm
DEN
- TYS
Nonstop2h 51m
Frontier
Deal found 3/31![Frontier logo]()
$173
This Super.com deal was found by Cheapflights users on 3/31. 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.
Wed 6/108:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Wed 6/172:46 pm
DEN
- TYS
Nonstop2h 51m
Frontier
Deal found 3/31![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 3/31. 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 7/57:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 7/199:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 3/31![Allegiant Air logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 7/97:00 am
TYS
- DEN
Nonstop3h 11m
Multiple Airlines
Mon 7/132:46 pm
DEN
- TYS
Nonstop2h 51m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$178
This Orbitz deal was found by Cheapflights users on 3/31. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Wed 8/52:46 pm
DEN
- TYS
Nonstop2h 51m
Frontier
Deal found 3/31![Frontier logo]()
$182
Best flights from Knoxville to DenverDiscover carefully curated flight deals from Knoxville to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
Discover carefully curated flight deals from Knoxville to Denver that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 1, 2026.
This United Airlines deal was found by Cheapflights users on 3/31. 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 5/148:45 am
TYS
- DEN
Nonstop3h 23m
United Airlines
Wed 5/205:27 pm
DEN
- TYS
Nonstop2h 56m
United Airlines
Deal found 3/31![United Airlines logo]()
$303
This Delta deal was found by Cheapflights users on 3/27. 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.
Mon 4/277:00 pm
TYS
- DEN
1 stop7h 36m
Delta
Sat 5/22:39 pm
DEN
- TYS
1 stop6h 20m
Delta
Deal found 3/27![Delta logo]()
$367
This Southwest deal was found by Cheapflights users on 3/31. 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.
Fri 7/316:40 am
TYS
- DEN
2 stops8h 40m
Southwest
Sun 8/25:00 am
DEN
- TYS
1 stop5h 05m
Southwest
Deal found 3/31![Southwest logo]()
$407
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sat 4/2510:49 am
TYS
- DEN
1 stop7h 35m
United Airlines
Sat 5/25:27 pm
DEN
- TYS
Nonstop2h 56m
United Airlines
Deal found 3/28![United Airlines logo]()
$313
This United Airlines deal was found by Cheapflights users on 3/27. 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 5/158:45 am
TYS
- DEN
Nonstop3h 23m
United Airlines
Tue 5/195:27 pm
DEN
- TYS
Nonstop2h 56m
United Airlines
Deal found 3/27![United Airlines logo]()
$325
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sat 8/14:56 pm
TYS
- DEN
Nonstop3h 24m
United Airlines
Fri 8/75:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 3/28![United Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 3/29. 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.
Sat 7/117:00 am
TYS
- DEN
2 stops9h 20m
Southwest
Tue 7/2111:30 am
DEN
- TYS
2 stops6h 50m
Southwest
Deal found 3/29![Southwest logo]()
$442
This United Airlines deal was found by Cheapflights users on 3/29. 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.
Mon 4/277:20 pm
TYS
- DEN
1 stop7h 24m
United Airlines
Sat 5/210:10 am
DEN
- TYS
Nonstop2h 57m
United Airlines
Deal found 3/29![United Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Mon 9/78:48 am
TYS
- DEN
Nonstop3h 21m
United Airlines
Mon 9/1411:00 am
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 3/28![United Airlines logo]()
$411
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Sat 6/205:57 pm
TYS
- DEN
1 stop7h 40m
United Airlines
Mon 6/225:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 3/30![United Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 3/28. 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.
Sat 5/307:19 pm
TYS
- DEN
1 stop7h 11m
United Airlines
Tue 6/25:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 3/28![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 3/27. 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 7/268:48 am
TYS
- DEN
Nonstop3h 24m
United Airlines
Thu 7/305:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 3/27![United Airlines logo]()
$437
Last-minute flights from Knoxville to DenverDiscover last-minute flight deals from Knoxville to Denver. Data last updated April 1, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Denver. Data last updated April 1, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/30. 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.
Sat 4/189:00 am
TYS
- DEN
1 stop15h 59m
Multiple Airlines
Wed 4/2211:59 pm
DEN
- TYS
1 stop20h 34m
Multiple Airlines
Deal found 3/30![Multiple Airlines logo]()
$227
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Mon 4/206:20 pm
TYS
- DEN
1 stop30h 39m
Multiple Airlines
Thu 4/2310:45 am
DEN
- TYS
Nonstop2h 48m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$220
This Kiwi.com deal was found by Cheapflights users on 3/31. 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.
Mon 4/2012:45 pm
TYS
- DEN
2 stops31h 03m
Multiple Airlines
Fri 4/2411:59 pm
DEN
- TYS
1 stop16h 04m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/234:28 pm
TYS
- DEN
Nonstop3h 32m
Frontier
Thu 4/3010:45 am
DEN
- TYS
Nonstop2h 48m
Frontier
Deal found 3/31![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 4/234:28 pm
TYS
- DEN
Nonstop3h 32m
Multiple Airlines
Thu 4/3011:59 pm
DEN
- TYS
1 stop19h 49m
Multiple Airlines
Deal found 3/31![Multiple Airlines logo]()
$195
One-way flights from Knoxville to DenverSearch for one-way flight options from Knoxville to Denver. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
Search for one-way flight options from Knoxville to Denver. Find affordable one-way fares based on user searches. Data last updated April 1, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/29. 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 6/287:00 am
TYS
- DEN
Nonstop3h 15m
Allegiant Air
Deal found 3/29![Allegiant Air logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 7/27:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 3/31![Allegiant Air logo]()
$71
This Frontier deal was found by Cheapflights users on 3/31. 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.
Mon 6/298:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Deal found 3/31![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 3/31. 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.
Thu 4/304:28 pm
TYS
- DEN
Nonstop3h 32m
Frontier
Deal found 3/31![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 3/27. 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 9/247:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 3/27![Allegiant Air logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 6/128:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Deal found 3/31![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 3/31. 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 5/287:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Deal found 3/31![Allegiant Air logo]()
$80
This Cheapflightsfares deal was found by Cheapflights users on 3/28. 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 9/277:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 3/28![Allegiant Air logo]()
$83
Find flight deals from Knoxville to Denver
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Denver (DEN). 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 April 1, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $130 (Cheapflightsfares) |
One-way from | $67 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $276 |
Good round-trip deal | $298 or less |
Good one-way deal | $154 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Denver 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 April 1, 2026.
Use the filters below to find and compare flights from Knoxville to Denver that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Thu 5/14
8:45 am-10:08 am
Nonstop3h 23m
Denver Intl
Wed 5/20
5:27 pm-10:23 pm
Nonstop2h 56m
$303
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 4/25
10:49 am-4:24 pm
1 stop7h 35m
Denver Intl
Sat 5/2
5:27 pm-10:23 pm
Nonstop2h 56m
$313
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Fri 5/15
8:45 am-10:08 am
Nonstop3h 23m
Denver Intl
Tue 5/19
5:27 pm-10:23 pm
Nonstop2h 56m
$325
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 8/1
4:56 pm-6:20 pm
Nonstop3h 24m
Denver Intl
Fri 8/7
5:25 pm-10:19 pm
Nonstop2h 54m
$365
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Mon 4/27
7:00 pm-12:36 am
1 stop7h 36m
Denver Intl
Sat 5/2
2:39 pm-10:59 pm
1 stop6h 20m
$367
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Mon 4/27
7:20 pm-12:44 am
1 stop7h 24m
Denver Intl
Sat 5/2
10:10 am-3:07 pm
Nonstop2h 57m
$403
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Fri 7/31
6:40 am-1:20 pm
2 stops8h 40m
Denver Intl
Sun 8/2
5:00 am-12:05 pm
1 stop5h 05m
$407
Quickest round-trip
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Mon 9/7
8:48 am-10:09 am
Nonstop3h 21m
Denver Intl
Mon 9/14
11:00 am-3:54 pm
Nonstop2h 54m
$411
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 6/20
5:57 pm-11:37 pm
1 stop7h 40m
Denver Intl
Mon 6/22
5:25 pm-10:19 pm
Nonstop2h 54m
$422
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 5/30
7:19 pm-12:30 am
1 stop7h 11m
Denver Intl
Tue 6/2
5:25 pm-10:19 pm
Nonstop2h 54m
$425
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Denver
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 Knoxville to Denver in April.
| 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 |
- Most accurate provider: When it comes to deals on Knoxville-Denver flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Denver flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Denver flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Denver 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 Knoxville-Denver 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 Knoxville to Denver
Have a flexible travel schedule? Discover the best time to fly to Denver from Knoxville with our price prediction graph.
TYS-DEN
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 Knoxville to Denver
Prices
Airlines
How far ahead should I book a flight from Knoxville to Denver?
Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Denver. Price data was last updated on March 13, 2026.
The price you pay for your flight from Knoxville to Denver may vary depending on when you book. For the best chance of a lower fare, look to book 45 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 Knoxville to Denver?
Currently, August is the cheapest month in which you can book a flight from Knoxville to Denver (average of $59). Flying from Knoxville to Denver in January is currently the most expensive (average of $158). 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 TYS to DEN?
Find hourly flight availability from Knoxville to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 1, 2026.
One of the essential ways to save on airfare from Knoxville to Denver is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the evening could potentially save you up to 56% on airfare.
Reviews of airlines servicing Denver
Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated April 1, 2026.
See what other customers who have flown with Delta,United Airlines, andAllegiant Air from Knoxville to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Overall
7.9
Boarding
8.1
Comfort
7.9
Crew
8.5
Entertainment
7.8
Food
7.2
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Denver. 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 Denver?
Book flights to Denver if you plan to visit one of these locationsThornton
Black Hawk
Lakewood
Westminster
Broomfield
Golden
Centennial
Greeley
Lone Tree
Wheat Ridge
Silverthorne
Central City
Cripple Creek
Winter Park
Manitou Springs
Frisco
Englewood
Fort Morgan
Glendale
Brighton
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Other flights to Denver
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Knoxville and Denver flights
Browse other Knoxville and Denver flight options. Last updated on April 1, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on April 1, 2026.
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Check out other popular destinations found by fellow travelers in 2026
Top 6 airlines flying from Knoxville to Denver
Discover the top 6 airlines that operate flights from Knoxville to Denver. 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 April 1, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$156 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$72 | Average$175 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$273 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$298 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$229 | Average$357 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$323 | FlexibilityNo cancel fee | On-time63% |