$44+ Cheap flights from Knoxville (TYS) to Colorado
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 6/24. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
May 30 — Jun 61
Round-trip
1 adult, Economy
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Cheapest flights from Knoxville to ColoradoExplore the most affordable flight options available from Knoxville to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
Explore the most affordable flight options available from Knoxville to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/178:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Wed 6/242:46 pm
DEN
- TYS
Nonstop2h 51m
Frontier
Deal found 4/27![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/187:00 am
TYS
- DEN
Nonstop3h 15m
Multiple Airlines
Wed 6/242:46 pm
DEN
- TYS
Nonstop2h 51m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$148
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 8/29:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
TYS
- DEN
Nonstop3h 21m
Multiple Airlines
Mon 8/102:46 pm
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$151
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/217:00 am
TYS
- DEN
Nonstop3h 15m
Multiple Airlines
Wed 6/242:46 pm
DEN
- TYS
Nonstop2h 51m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$158
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 7/267:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 8/29:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Thu 10/158:26 am
DEN
- TYS
Nonstop2h 45m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$165
This Super.com deal was found by Cheapflights users on 4/29. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:32 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Mon 6/82:46 pm
DEN
- TYS
Nonstop2h 47m
Frontier
Deal found 4/29![Frontier logo]()
$166
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:57 pm
TYS
- COS
1 stop5h 24m
Delta
Sun 11/226:00 am
COS
- TYS
1 stop7h 05m
Delta
Deal found 4/29![Delta logo]()
$317
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 8/114:56 pm
TYS
- MTJ
1 stop5h 16m
United Airlines
Mon 8/177:15 am
MTJ
- TYS
1 stop6h 39m
United Airlines
Deal found 4/29![United Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 4/29. 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.
Mon 10/129:13 am
TYS
- COS
1 stop8h 10m
Allegiant Air
Fri 10/166:08 pm
COS
- TYS
1 stop13h 35m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$348
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:36 am
TYS
- DRO
1 stop6h 18m
American Airlines
Sat 5/305:28 am
DRO
- TYS
1 stop5h 34m
American Airlines
Deal found 4/29![American Airlines logo]()
$353
Best flights from Knoxville to ColoradoDiscover carefully curated flight deals from Knoxville to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
Discover carefully curated flight deals from Knoxville to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/167:19 pm
TYS
- DEN
1 stop7h 11m
United Airlines
Tue 6/235:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 4/26![United Airlines logo]()
$293
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:36 am
TYS
- DRO
1 stop6h 18m
American Airlines
Sat 5/305:28 am
DRO
- TYS
1 stop5h 34m
American Airlines
Deal found 4/29![American Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/175:40 pm
TYS
- DEN
Nonstop3h 20m
Southwest
Wed 6/245:15 am
DEN
- TYS
1 stop9h 45m
Southwest
Deal found 4/30![Southwest logo]()
$356
This Delta deal was found by Cheapflights users on 4/27. 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.
Fri 7/243:59 pm
TYS
- DEN
1 stop8h 45m
Delta
Mon 7/275:45 am
DEN
- TYS
1 stop7h 03m
Delta
Deal found 4/27![Delta logo]()
$387
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 8/184:56 pm
TYS
- MTJ
1 stop5h 16m
United Airlines
Wed 8/193:23 pm
MTJ
- TYS
1 stop5h 15m
United Airlines
Deal found 4/29![United Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 4/25. 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 6/193:54 pm
TYS
- DEN
1 stop6h 50m
Delta
Sun 6/2112:40 am
DEN
- TYS
1 stop6h 58m
Delta
Deal found 4/25![Delta logo]()
$387
This American Airlines deal was found by Cheapflights users on 4/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/247:01 am
TYS
- EGE
1 stop8h 30m
American Airlines
Sun 5/312:12 pm
EGE
- TYS
1 stop7h 44m
American Airlines
Deal found 4/26![American Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 4/25. 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 5/912:20 pm
TYS
- DEN
Nonstop3h 20m
Southwest
Sat 5/162:45 pm
DEN
- TYS
Nonstop2h 50m
Southwest
Deal found 4/25![Southwest logo]()
$410
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Wed 7/84:56 pm
TYS
- GJT
1 stop5h 38m
United Airlines
Tue 7/147:00 am
GJT
- TYS
1 stop6h 53m
United Airlines
Deal found 4/30![United Airlines logo]()
$380
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:00 am
TYS
- GJT
2 stops9h 12m
American Airlines
Mon 5/186:00 am
GJT
- TYS
1 stop7h 19m
American Airlines
Deal found 4/28![American Airlines logo]()
$409
This Delta deal was found by Cheapflights users on 4/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/275:59 pm
TYS
- COS
1 stop5h 28m
Delta
Tue 6/911:10 am
COS
- TYS
2 stops10h 44m
Delta
Deal found 4/28![Delta logo]()
$421
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Fri 5/224:56 pm
TYS
- DEN
Nonstop3h 24m
United Airlines
Mon 5/255:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 4/29![United Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 4/25. 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.
Wed 9/21:55 pm
TYS
- COS
2 stops9h 50m
Southwest
Mon 9/76:00 am
COS
- TYS
1 stop5h 25m
Southwest
Deal found 4/25![Southwest logo]()
$444
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:36 am
TYS
- GJT
1 stop6h 50m
American Airlines
Tue 7/1410:56 am
GJT
- TYS
1 stop6h 34m
American Airlines
Deal found 4/30![American Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/288:48 am
TYS
- DEN
Nonstop3h 24m
United Airlines
Tue 6/24:45 pm
DEN
- TYS
1 stop5h 45m
United Airlines
Deal found 4/25![United Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 4/25. 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 9/24:00 pm
TYS
- COS
1 stop7h 15m
Delta
Mon 9/76:00 am
COS
- TYS
1 stop7h 07m
Delta
Deal found 4/25![Delta logo]()
$440
This Southwest deal was found by Cheapflights users on 4/26. 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.
Thu 5/282:45 pm
TYS
- COS
2 stops11h 20m
Southwest
Tue 6/95:35 am
COS
- TYS
2 stops6h 30m
Southwest
Deal found 4/26![Southwest logo]()
$478
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 8/115:45 am
TYS
- MTJ
2 stops10h 42m
United Airlines
Mon 8/177:15 am
MTJ
- TYS
1 stop6h 39m
United Airlines
Deal found 4/29![United Airlines logo]()
$398
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:41 am
TYS
- COS
2 stops11h 26m
Delta
Tue 6/306:00 am
COS
- TYS
1 stop5h 19m
Delta
Deal found 4/30![Delta logo]()
$444
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:40 am
TYS
- MTJ
2 stops14h 50m
Southwest
Tue 7/148:15 am
MTJ
- TYS
1 stop8h 05m
Southwest
Deal found 4/30![Southwest logo]()
$480
This United Airlines deal was found by Cheapflights users on 4/25. 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 10/278:45 am
TYS
- COS
1 stop7h 55m
United Airlines
Sat 10/313:25 pm
COS
- TYS
1 stop4h 55m
United Airlines
Deal found 4/25![United Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/271:00 pm
TYS
- COS
2 stops11h 25m
American Airlines
Tue 6/91:06 pm
COS
- TYS
2 stops8h 41m
American Airlines
Deal found 4/30![American Airlines logo]()
$485
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:41 am
TYS
- COS
2 stops11h 26m
Delta
Mon 6/296:00 am
COS
- TYS
1 stop6h 49m
Delta
Deal found 4/30![Delta logo]()
$447
This Southwest deal was found by Cheapflights users on 4/29. 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.
Thu 6/186:40 am
TYS
- MTJ
2 stops14h 50m
Southwest
Mon 6/298:00 am
MTJ
- TYS
1 stop9h 10m
Southwest
Deal found 4/29![Southwest logo]()
$486
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Wed 5/204:20 pm
TYS
- DEN
Nonstop3h 27m
United Airlines
Mon 5/2510:58 am
DEN
- TYS
Nonstop2h 55m
United Airlines
Deal found 4/26![United Airlines logo]()
$438
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/261:54 pm
TYS
- DRO
1 stop8h 08m
American Airlines
Sat 7/45:28 am
DRO
- TYS
2 stops11h 50m
American Airlines
Deal found 4/28![American Airlines logo]()
$545
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/144:20 pm
TYS
- DRO
1 stop6h 46m
United Airlines
Mon 5/181:35 pm
DRO
- TYS
1 stop6h 48m
United Airlines
Deal found 4/29![United Airlines logo]()
$442
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/286:30 am
TYS
- COS
1 stop6h 40m
United Airlines
Tue 6/212:16 pm
COS
- TYS
1 stop6h 40m
United Airlines
Deal found 4/25![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 4/26. 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 5/118:45 am
TYS
- MTJ
1 stop5h 56m
United Airlines
Sun 5/171:43 pm
MTJ
- TYS
1 stop6h 40m
United Airlines
Deal found 4/26![United Airlines logo]()
$466
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2410:00 am
TYS
- DRO
2 stops10h 12m
American Airlines
Thu 7/305:28 am
DRO
- TYS
1 stop5h 26m
American Airlines
Deal found 4/28![American Airlines logo]()
$747
Last-minute flights from Knoxville to ColoradoDiscover last-minute flight deals from Knoxville to Colorado. Data last updated April 30, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Colorado. Data last updated April 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:40 pm
TYS
- DEN
2 stops28h 18m
Multiple Airlines
Mon 5/112:46 pm
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/88:32 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Mon 5/112:46 pm
DEN
- TYS
Nonstop2h 47m
Frontier
Deal found 4/29![Frontier logo]()
$264
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:32 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Mon 6/82:46 pm
DEN
- TYS
Nonstop2h 47m
Frontier
Deal found 4/28![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:32 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Fri 6/52:46 pm
DEN
- TYS
Nonstop2h 47m
Frontier
Deal found 4/28![Frontier logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:15 pm
TYS
- DEN
2 stops11h 09m
Multiple Airlines
Mon 6/82:46 pm
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/81:15 pm
TYS
- DEN
2 stops11h 09m
Multiple Airlines
Mon 5/112:46 pm
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$300
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:15 pm
TYS
- DEN
2 stops11h 09m
Multiple Airlines
Fri 6/52:46 pm
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:32 pm
TYS
- DEN
Nonstop3h 30m
Multiple Airlines
Thu 6/49:05 am
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/88:32 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Fri 5/152:46 pm
DEN
- TYS
Nonstop2h 47m
Frontier
Deal found 4/26![Frontier logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/81:15 pm
TYS
- DEN
2 stops26h 58m
Multiple Airlines
Fri 5/152:46 pm
DEN
- TYS
Nonstop2h 47m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/255:36 am
TYS
- DRO
1 stop6h 18m
American Airlines
Sat 5/305:28 am
DRO
- TYS
1 stop5h 34m
American Airlines
Deal found 4/29![American Airlines logo]()
$353
This Delta deal was found by Cheapflights users on 4/26. 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 5/285:59 pm
TYS
- COS
1 stop5h 28m
Delta
Tue 6/96:00 am
COS
- TYS
1 stop5h 19m
Delta
Deal found 4/26![Delta logo]()
$360
One-way flights from Knoxville to ColoradoSearch for one-way flight options from Knoxville to Colorado. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
Search for one-way flight options from Knoxville to Colorado. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:32 pm
TYS
- DEN
Nonstop3h 40m
Frontier
Deal found 4/30![Frontier logo]()
$44
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 10/226:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 7/318:32 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 4/26![Frontier logo]()
$71
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/228:19 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Deal found 4/28![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 8/307:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 4/29![Allegiant Air logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$78
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:19 pm
TYS
- DEN
Nonstop3h 30m
Frontier
Deal found 4/28![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:32 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 4/28![Frontier logo]()
$84
This Delta deal was found by Cheapflights users on 4/27. 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 6/293:54 pm
TYS
- COS
1 stop7h 13m
Delta
Deal found 4/27![Delta logo]()
$155
This United Airlines deal was found by Cheapflights users on 4/25. 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 8/278:48 am
TYS
- MTJ
1 stop7h 39m
United Airlines
Deal found 4/25![United Airlines logo]()
$196
Find flight deals from Knoxville to Colorado
Keep the following information in mind while searching for Knoxville to Colorado flight deals. Data was last updated April 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $142 (Trip.com) |
One-way from | $44 (Frontier) |
Popular in | March |
Cheapest in | November |
Average price | $297 |
Good round-trip deal | $353 or less |
Good one-way deal | $146 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Colorado 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 30, 2026.
Use the filters below to find and compare flights from Knoxville to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Tue 6/16
7:19 pm-12:30 am
1 stop7h 11m
Denver Intl
Tue 6/23
5:25 pm-10:19 pm
Nonstop2h 54m
$293
KnoxvilleDurango
TYS - DRO
TYSDRO
Knoxville McGhee Tyson
Mon 5/25
5:36 am-9:54 am
1 stop6h 18m
Durango La Plata County
Sat 5/30
5:28 am-1:02 pm
1 stop5h 34m
$353
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Wed 6/17
5:40 pm-7:00 pm
Nonstop3h 20m
Denver Intl
Wed 6/24
5:15 am-5:00 pm
1 stop9h 45m
$356
KnoxvilleMontrose
TYS - MTJ
TYSMTJ
Knoxville McGhee Tyson
Tue 8/18
4:56 pm-8:12 pm
1 stop5h 16m
Montrose County
Wed 8/19
3:23 pm-10:38 pm
1 stop5h 15m
$379
KnoxvilleGrand Junction
TYS - GJT
TYSGJT
Knoxville McGhee Tyson
Wed 7/8
4:56 pm-8:34 pm
1 stop5h 38m
Grand Junction Regnl
Tue 7/14
7:00 am-3:53 pm
1 stop6h 53m
$380
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Fri 7/24
3:59 pm-10:44 pm
1 stop8h 45m
Denver Intl
Mon 7/27
5:45 am-2:48 pm
1 stop7h 03m
$387
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Fri 6/19
3:54 pm-8:44 pm
1 stop6h 50m
Denver Intl
Sun 6/21
12:40 am-9:38 am
1 stop6h 58m
$387
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Fri 5/22
4:56 pm-6:20 pm
Nonstop3h 24m
Denver Intl
Mon 5/25
5:25 pm-10:19 pm
Nonstop2h 54m
$387
KnoxvilleVail
TYS - EGE
TYSEGE
Knoxville McGhee Tyson
Sun 5/24
7:01 am-1:31 pm
1 stop8h 30m
Vail Eagle County
Sun 5/31
2:12 pm-11:56 pm
1 stop7h 44m
$389
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Thu 5/28
8:48 am-10:12 am
Nonstop3h 24m
Denver Intl
Tue 6/2
4:45 pm-12:30 am
1 stop5h 45m
$393
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Knoxville to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Knoxville with our price prediction graph.
TYS-DEN
TYS-DRO
TYS-COS
TYS-MTJ
TYS-GJT
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 Colorado
TYS-USCO
TYS-DEN
TYS-DRO
TYS-COS
TYS-MTJ
How far ahead should I book a flight from Knoxville to Colorado?
The price you pay for your flight from Knoxville to Colorado may vary depending on when you book. For the best chance of a lower fare, look to book 44 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 Colorado?
Currently, September is the cheapest month in which you can book a flight from Knoxville to Colorado (average of $41). Flying from Knoxville to Colorado in February is currently the most expensive (average of $88). 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 CO?
Find hourly flight availability from Knoxville to Colorado. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 56% on flights from Knoxville to Colorado by exploring options for tickets in the evening.
How much does it cost to fly round-trip from Knoxville to Colorado?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. 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 Colorado. Reviews last updated April 30, 2026.
See what other customers who have flown with Delta,United Airlines, andAllegiant Air from Knoxville to Colorado have to say. 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.
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Entertainment
7.8
Comfort
7.9
Food
7.2
Crew
8.5
Overall
7.9
Boarding
8.1
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 Colorado. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Knoxville to Colorado
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Complete your trip
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Find flights from Knoxville to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Knoxville and Colorado flights
Browse other Knoxville and Colorado flight options. Last updated on April 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Knoxville to Colorado flights
Consider these flights traveling from Knoxville to Colorado.
Top 6 airlines flying from Knoxville to Colorado
Discover the top 6 airlines that operate flights from Knoxville to Colorado. 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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$150 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$72 | Average$176 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$296 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$434 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$229 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$384 | FlexibilityNo cancel fee | On-time63% |