$52+ Cheap flights from Knoxville to Denver (TYS - DEN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Oct 10 — Oct 171
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 August or September, booked 73 days in advance, depart on a Sunday or Thursday 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 September 10, 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 September 10, 2026.
This CheapOair deal was found by Cheapflights users on 9/9. 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 10/226:30 am -
Nonstop3h 06m
Sun 10/258:26 am -
Nonstop2h 45m
Deal found 9/9![Allegiant Air logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 11/126:33 pm -
2 stops39h 49m
Sun 11/158:30 am -
Nonstop2h 49m
Deal found 9/8![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/296:24 pm -
2 stops39h 58m
Sun 11/18:26 am -
Nonstop2h 45m
Deal found 9/10![Multiple Airlines logo]()
$204
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/137:00 am -
Nonstop3h 05m
Sun 9/208:55 am -
Nonstop2h 49m
Deal found 9/8![Allegiant Air logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 11/56:33 pm -
2 stops39h 49m
Sun 11/88:30 am -
Nonstop2h 49m
Deal found 9/8![Multiple Airlines logo]()
$213
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am -
Nonstop3h 05m
Sun 10/48:26 am -
Nonstop2h 45m
Deal found 9/10![Allegiant Air logo]()
$227
This CheapOair deal was found by Cheapflights users on 9/5. 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 9/247:00 am -
Nonstop3h 05m
Sun 9/278:55 am -
Nonstop2h 49m
Deal found 9/5![Allegiant Air logo]()
$241
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 September 10, 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 September 10, 2026.
This Southwest deal was found by Cheapflights users on 9/9. 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.
Mon 1/45:25 pm -
Nonstop3h 25m
Fri 1/811:10 am -
Nonstop2h 35m
Deal found 9/9![Southwest logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/299:00 am -
Nonstop3h 28m
Sat 10/3111:18 am -
Nonstop2h 46m
Deal found 9/8![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 9/5. 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.
Thu 10/812:06 pm -
1 stop7h 46m
Thu 10/156:00 am -
1 stop5h 40m
Deal found 9/5![Delta logo]()
$474
This Southwest deal was found by Cheapflights users on 9/7. 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 10/167:25 pm -
1 stop7h 00m
Mon 10/1911:50 am -
2 stops8h 55m
Deal found 9/7![Southwest logo]()
$394
This Southwest deal was found by Cheapflights users on 9/7. 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.
Mon 10/127:25 pm -
1 stop7h 00m
Sat 10/176:40 am -
2 stops9h 15m
Deal found 9/7![Southwest logo]()
$408
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/289:00 am -
Nonstop3h 18m
Sat 10/35:25 pm -
Nonstop2h 49m
Deal found 9/9![United Airlines logo]()
$461
This Southwest deal was found by Cheapflights users on 9/8. 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.
Mon 11/167:05 am -
2 stops9h 05m
Sat 11/212:50 pm -
2 stops5h 50m
Deal found 9/8![Southwest logo]()
$423
This United Airlines deal was found by Cheapflights users on 9/7. 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 12/244:55 pm -
Nonstop3h 30m
Wed 12/306:00 am -
1 stop6h 42m
Deal found 9/7![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Tue 11/245:05 pm -
Nonstop3h 18m
Mon 11/305:40 pm -
Nonstop2h 50m
Deal found 9/8![United Airlines logo]()
$470
This Southwest deal was found by Cheapflights users on 9/5. 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 3/67:30 am -
2 stops8h 55m
Wed 3/107:55 am -
2 stops8h 55m
Deal found 9/5![Southwest logo]()
$447
Last-minute flights from Knoxville to DenverDiscover last-minute flight deals from Knoxville to Denver. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Denver. Data last updated September 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/137:00 am -
Nonstop3h 05m
Sun 9/208:55 am -
Nonstop2h 49m
Deal found 9/8![Allegiant Air logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 9/177:00 am -
Nonstop3h 05m
Sun 9/2712:17 pm -
1 stop7h 38m
Deal found 9/5![Allegiant Air logo]()
$254
This Cheapflightsfares deal was found by Cheapflights users on 9/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am -
Nonstop3h 05m
Sun 10/48:26 am -
Nonstop2h 45m
Deal found 9/10![Allegiant Air logo]()
$227
This CheapOair deal was found by Cheapflights users on 9/5. 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 9/247:00 am -
Nonstop3h 05m
Sun 9/278:55 am -
Nonstop2h 49m
Deal found 9/5![Allegiant Air logo]()
$241
This CheapOair deal was found by Cheapflights users on 9/7. 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.
Sun 9/277:00 am -
Nonstop3h 05m
Sun 10/48:26 am -
Nonstop2h 45m
Deal found 9/7![Allegiant Air logo]()
$248
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 10/16:30 am -
Nonstop3h 06m
Sun 10/48:26 am -
Nonstop2h 45m
Deal found 9/9![Allegiant Air logo]()
$261
This CheapOair deal was found by Cheapflights users on 9/9. 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 10/226:30 am -
Nonstop3h 06m
Sun 10/258:26 am -
Nonstop2h 45m
Deal found 9/9![Allegiant Air logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 10/239:28 pm -
2 stops26h 03m
Sun 10/258:26 am -
Nonstop2h 45m
Deal found 9/7![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/296:24 pm -
2 stops39h 58m
Sun 11/18:26 am -
Nonstop2h 45m
Deal found 9/10![Multiple Airlines logo]()
$204
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 September 10, 2026.
Search for one-way flight options from Knoxville to Denver. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This CheapOair deal was found by Cheapflights users on 9/8. 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 11/126:30 am -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Allegiant Air logo]()
$52
This CheapOair deal was found by Cheapflights users on 9/6. 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 11/56:30 am -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Allegiant Air logo]()
$59
This Jetabroad deal was found by Cheapflights users on 9/9. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:30 am -
Nonstop3h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 11/16:30 am -
Nonstop3h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Allegiant Air logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 11/156:30 am -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Allegiant Air logo]()
$75
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 11/226:20 am -
Nonstop3h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Allegiant Air logo]()
$77
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 11/86:30 am -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $153 (CheapOair) |
One-way from | $52 (CheapOair) |
Popular in | March |
Cheapest in | August |
Average price | $265 |
Good round-trip deal | $334 or less |
Good one-way deal | $186 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 7,457,451 searches. Data last updated September 10, 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 Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Thu 11/12
4:00 pm-8:20 pm
1 stop6h 20m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$163
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Wed 10/7
7:16 pm-11:44 pm
1 stop6h 28m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$163
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Thu 10/15
12:50 pm-7:45 pm
2 stops8h 55m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$168
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Tue 12/15
7:05 am-2:55 pm
2 stops9h 50m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$168
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Mon 11/23
7:05 am-12:15 pm
2 stops7h 10m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$168
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Wed 12/2
2:40 pm-7:00 pm
1 stop6h 20m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$195
Quickest round-trip
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Mon 3/8
4:25 pm-5:43 pm
Nonstop3h 18m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$199
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Tue 12/8
7:05 am-1:45 pm
2 stops8h 40m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$200
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Tue 10/6
12:06 pm-5:52 pm
1 stop7h 46m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$205
KnoxvilleDenver
TYS Knoxville McGhee Tyson - DEN Denver Intl
TYSDEN
Knoxville McGhee Tyson
Fri 10/9
8:35 am-1:29 pm
1 stop6h 54m
Denver Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$209
Showing 1-10 of 20 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 September.
| 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 Accuracy3 stars | Trust Score*3 stars |
- 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
How far ahead should I book a flight from Knoxville to Denver?
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 72 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 $228). Flying from Knoxville to Denver in March is currently the most expensive (average of $367). 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 September 10, 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 44% 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 September 10, 2026.
See what other customers who have flown with Southwest,Delta, andUnited Airlines 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
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
Westminster
Lakewood
Centennial
Black Hawk
Broomfield
Golden
Wheat Ridge
Silverthorne
Central City
Fort Morgan
Greeley
Cripple Creek
Winter Park
Limon
Frisco
Manitou Springs
Englewood
Glendale
Evergreen
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to Denver by adding a car rental and/or hotel reservation to your travel itinerary.
Other flights to Denver
Explore flights to Denver departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
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Find flights from Knoxville to Denver, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Denver flights
Browse other Knoxville and Denver flight options. Last updated on September 10, 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 September 10, 2026.
Popular flight searches
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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$172 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$83 | Average$190 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$208 | Average$342 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$229 | Average$381 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$259 | Average$387 | FlexibilityNo cancel fee | On-time63% |