$50+ 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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Aug 27 — Sep 31
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 July 28, 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 July 28, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 7/27. 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 9/67:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Thu 9/108:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/27![Allegiant Air logo]()
$117
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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
Thu 10/18:26 am
DEN
- TYS
Nonstop2h 45m
Allegiant Air
Deal found 7/24![Allegiant Air logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/167:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Thu 8/209:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$134
This Cheapflightsfares deal was found by Cheapflights users on 7/24. 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
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/278:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/24![Allegiant Air logo]()
$135
This CheapOair deal was found by Cheapflights users on 7/23. 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 9/137:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/208:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/23![Allegiant Air logo]()
$136
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 9/67:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/138:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$139
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair 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
Allegiant Air
Thu 8/139:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$140
This Cheapflightsfares deal was found by Cheapflights users on 7/23. 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
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Thu 10/18:26 am
DEN
- TYS
Nonstop2h 45m
Allegiant Air
Deal found 7/23![Allegiant Air logo]()
$141
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/294:50 pm
TYS
- COS
1 stop7h 06m
United Airlines
Sat 9/58:38 am
COS
- TYS
1 stop5h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 8/2911:38 am
TYS
- COS
2 stops12h 00m
Delta
Sat 9/56:30 am
COS
- TYS
2 stops10h 56m
Delta
Deal found 7/25![Delta logo]()
$321
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:21 pm
TYS
- DRO
1 stop6h 08m
American Airlines
Wed 3/104:43 pm
DRO
- TYS
1 stop5h 11m
American Airlines
Deal found 7/25![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 7/24. 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.
Sat 10/37:50 am
TYS
- COS
1 stop6h 24m
Delta
Thu 10/86:00 am
COS
- TYS
1 stop5h 40m
Delta
Deal found 7/24![Delta logo]()
$332
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 July 28, 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 July 28, 2026.
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:21 pm
TYS
- DRO
1 stop6h 08m
American Airlines
Wed 3/104:43 pm
DRO
- TYS
1 stop5h 11m
American Airlines
Deal found 7/25![American Airlines logo]()
$328
This Delta deal was found by Cheapflights users on 7/28. 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.
Tue 8/184:38 pm
TYS
- DEN
1 stop5h 14m
Delta
Fri 8/214:33 pm
DEN
- TYS
1 stop5h 19m
Delta
Deal found 7/28![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 7/26. 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.
Sun 12/138:10 am
TYS
- DEN
2 stops7h 50m
Southwest
Thu 12/175:00 am
DEN
- TYS
2 stops8h 00m
Southwest
Deal found 7/26![Southwest logo]()
$373
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Sat 1/164:25 pm
TYS
- DEN
Nonstop3h 18m
United Airlines
Thu 1/219:47 am
DEN
- TYS
Nonstop2h 49m
United Airlines
Deal found 7/27![United Airlines logo]()
$379
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:03 am
TYS
- COS
1 stop5h 15m
American Airlines
Sat 9/128:07 am
COS
- TYS
2 stops10h 59m
American Airlines
Deal found 7/27![American Airlines logo]()
$362
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 9/159:00 am
TYS
- DEN
Nonstop3h 20m
United Airlines
Mon 9/215:50 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 7/28![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 7/26. 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.
Sat 8/157:50 am
TYS
- COS
2 stops9h 40m
Southwest
Sat 8/227:00 am
COS
- TYS
1 stop7h 10m
Southwest
Deal found 7/26![Southwest logo]()
$393
This Delta deal was found by Cheapflights users on 7/24. 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 11/211:45 am
TYS
- COS
2 stops10h 22m
Delta
Mon 11/96:00 am
COS
- TYS
1 stop7h 05m
Delta
Deal found 7/24![Delta logo]()
$396
This United Airlines deal was found by Cheapflights users on 7/25. 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 9/224:50 pm
TYS
- GJT
1 stop5h 45m
United Airlines
Tue 9/291:34 pm
GJT
- TYS
1 stop6h 40m
United Airlines
Deal found 7/25![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:10 am
TYS
- DEN
2 stops8h 35m
Southwest
Sun 9/278:30 pm
DEN
- TYS
2 stops14h 55m
Southwest
Deal found 7/28![Southwest logo]()
$409
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/169:00 am
TYS
- DEN
Nonstop3h 20m
United Airlines
Wed 9/231:25 pm
DEN
- TYS
1 stop7h 24m
United Airlines
Deal found 7/23![United Airlines logo]()
$383
This Southwest deal was found by Cheapflights users on 7/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:00 am
TYS
- COS
2 stops7h 40m
Southwest
Sat 9/128:55 am
COS
- TYS
2 stops8h 30m
Southwest
Deal found 7/27![Southwest logo]()
$410
This Delta deal was found by Cheapflights users on 7/28. 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.
Sun 8/167:41 pm
TYS
- DEN
1 stop6h 55m
Delta
Fri 8/212:54 pm
DEN
- TYS
1 stop5h 06m
Delta
Deal found 7/28![Delta logo]()
$458
This United Airlines deal was found by Cheapflights users on 7/23. 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 9/144:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Sat 9/1910:52 am
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 7/23![United Airlines logo]()
$386
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:55 pm
TYS
- EGE
1 stop6h 06m
American Airlines
Sat 11/78:00 am
EGE
- TYS
2 stops12h 48m
American Airlines
Deal found 7/27![American Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 7/28. 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 9/195:45 am
TYS
- DEN
1 stop6h 24m
United Airlines
Wed 9/2311:00 am
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 7/28![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 7/26. 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.
Fri 8/142:05 pm
TYS
- COS
2 stops9h 40m
Southwest
Sat 8/228:55 am
COS
- TYS
2 stops6h 45m
Southwest
Deal found 7/26![Southwest logo]()
$450
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:46 pm
TYS
- EGE
1 stop7h 07m
American Airlines
Mon 8/247:50 am
EGE
- TYS
1 stop6h 53m
American Airlines
Deal found 7/25![American Airlines logo]()
$519
This United Airlines deal was found by Cheapflights users on 7/24. 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 10/315:05 pm
TYS
- COS
1 stop6h 17m
United Airlines
Wed 11/41:28 pm
COS
- TYS
1 stop7h 01m
United Airlines
Deal found 7/24![United Airlines logo]()
$401
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Fri 8/144:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Tue 8/1811:00 am
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 7/25![United Airlines logo]()
$408
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Mon 8/244:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Fri 8/285:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 7/27![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 7/24. 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 10/28:15 pm
TYS
- MTJ
2 stops19h 11m
American Airlines
Mon 10/51:14 pm
MTJ
- TYS
2 stops19h 51m
American Airlines
Deal found 7/24![American Airlines logo]()
$626
This United Airlines deal was found by Cheapflights users on 7/26. 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 9/164:50 pm
TYS
- GJT
1 stop5h 45m
United Airlines
Sat 9/267:00 am
GJT
- TYS
2 stops11h 19m
United Airlines
Deal found 7/26![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Mon 8/106:03 am
TYS
- ASE
1 stop5h 58m
American Airlines
Fri 8/147:30 am
ASE
- TYS
2 stops11h 29m
American Airlines
Deal found 7/26![American Airlines logo]()
$636
This United Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 8/269:00 am
TYS
- DRO
1 stop5h 32m
United Airlines
Sat 8/297:00 am
DRO
- TYS
1 stop6h 46m
United Airlines
Deal found 7/27![United Airlines logo]()
$418
This American Airlines deal was found by Cheapflights users on 7/24. 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 12/207:00 am
TYS
- ASE
1 stop5h 55m
American Airlines
Wed 12/237:00 am
ASE
- TYS
1 stop8h 19m
American Airlines
Deal found 7/24![American Airlines logo]()
$667
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Wed 8/264:50 pm
TYS
- GJT
1 stop7h 09m
United Airlines
Sat 8/291:40 pm
GJT
- TYS
1 stop6h 49m
United Airlines
Deal found 7/25![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:15 am
TYS
- DRO
2 stops9h 32m
United Airlines
Sun 8/91:30 pm
DRO
- TYS
1 stop6h 49m
United Airlines
Deal found 7/24![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:53 pm
TYS
- DEN
Nonstop3h 21m
United Airlines
Fri 10/211:52 pm
DEN
- TYS
1 stop8h 45m
United Airlines
Deal found 7/23![United Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 11/25:45 am
TYS
- COS
2 stops12h 39m
United Airlines
Mon 11/911:34 am
COS
- TYS
2 stops10h 25m
United Airlines
Deal found 7/25![United Airlines logo]()
$466
Last-minute flights from Knoxville to ColoradoDiscover last-minute flight deals from Knoxville to Colorado. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Colorado. Data last updated July 28, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair 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
Allegiant Air
Thu 8/139:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$140
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Thu 8/139:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/137:00 am
TYS
- DEN
Nonstop3h 21m
Multiple Airlines
Mon 8/177:00 am
DEN
- TYS
1 stop14h 12m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/137:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Sun 8/239:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$184
This United Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 8/134:50 pm
TYS
- DRO
1 stop7h 10m
United Airlines
Tue 8/181:34 pm
DRO
- TYS
1 stop6h 55m
United Airlines
Deal found 7/26![United Airlines logo]()
$363
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/167:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Thu 8/209:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/167:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Sun 8/239:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 7/28. 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.
Mon 8/178:19 pm
TYS
- DEN
Nonstop3h 23m
Multiple Airlines
Thu 8/209:00 am
DEN
- TYS
Nonstop2h 49m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 7/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Sun 8/239:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$183
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:50 pm
TYS
- COS
1 stop6h 03m
American Airlines
Mon 8/315:40 am
COS
- TYS
1 stop5h 16m
American Airlines
Deal found 7/25![American Airlines logo]()
$333
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 8/294:50 pm
TYS
- COS
1 stop7h 06m
United Airlines
Sat 9/58:38 am
COS
- TYS
1 stop5h 08m
United Airlines
Deal found 7/25![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 8/2911:38 am
TYS
- COS
2 stops12h 00m
Delta
Sat 9/56:30 am
COS
- TYS
2 stops10h 56m
Delta
Deal found 7/25![Delta logo]()
$321
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 July 28, 2026.
Search for one-way flight options from Knoxville to Colorado. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This CheapOair deal was found by Cheapflights users on 7/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:30 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$50
This FlightHub deal was found by Cheapflights users on 7/23. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Deal found 7/23![Allegiant Air logo]()
$52
This CheapOair deal was found by Cheapflights users on 7/23. 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 8/307:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Deal found 7/23![Allegiant Air logo]()
$56
This CheapOair deal was found by Cheapflights users on 7/24. 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
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 7/24![Allegiant Air logo]()
$57
This CheapOair deal was found by Cheapflights users on 7/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$58
This Kiwi.com deal was found by Cheapflights users on 7/26. 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.
Thu 8/277:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$63
This American Airlines deal was found by Cheapflights users on 7/28. 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 10/27:30 am
TYS
- MTJ
1 stop7h 56m
American Airlines
Deal found 7/28![American Airlines logo]()
$304
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/26:00 am
TYS
- DRO
1 stop7h 57m
American Airlines
Deal found 7/25![American Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am
TYS
- GJT
1 stop6h 25m
American Airlines
Deal found 7/25![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 10/33:45 pm
TYS
- DRO
2 stops8h 30m
United Airlines
Deal found 7/25![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 10/25:45 am
TYS
- MTJ
2 stops10h 42m
United Airlines
Deal found 7/28![United Airlines logo]()
$365
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/33:21 pm
TYS
- DRO
1 stop6h 08m
American Airlines
Deal found 7/25![American Airlines logo]()
$523
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 July 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (Cheapflightsfares) |
One-way from | $50 (CheapOair) |
Popular in | March |
Cheapest in | November |
Average price | $344 |
Good round-trip deal | $306 or less |
Good one-way deal | $185 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 July 28, 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
KnoxvilleDurango
TYS - DRO
TYSDRO
Knoxville McGhee Tyson
Sat 10/3
3:21 pm-7:29 pm
1 stop6h 08m
Durango La Plata County
Wed 3/10
4:43 pm-11:54 pm
1 stop5h 11m
$328
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Tue 8/18
4:38 pm-7:52 pm
1 stop5h 14m
Denver Intl
Fri 8/21
4:33 pm-11:52 pm
1 stop5h 19m
$339
KnoxvilleColorado Springs
TYS - COS
TYSCOS
Knoxville McGhee Tyson
Tue 9/8
6:03 am-9:18 am
1 stop5h 15m
Colorado Springs
Sat 9/12
8:07 am-9:06 pm
2 stops10h 59m
$362
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sun 12/13
8:10 am-2:00 pm
2 stops7h 50m
Denver Intl
Thu 12/17
5:00 am-3:00 pm
2 stops8h 00m
$373
Quickest round-trip
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 1/16
4:25 pm-5:43 pm
Nonstop3h 18m
Denver Intl
Thu 1/21
9:47 am-2:36 pm
Nonstop2h 49m
$379
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Tue 9/15
9:00 am-10:20 am
Nonstop3h 20m
Denver Intl
Mon 9/21
5:50 pm-10:44 pm
Nonstop2h 54m
$379
KnoxvilleGrand Junction
TYS - GJT
TYSGJT
Knoxville McGhee Tyson
Tue 9/22
4:50 pm-8:35 pm
1 stop5h 45m
Grand Junction Regnl
Tue 9/29
1:34 pm-10:14 pm
1 stop6h 40m
$379
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Wed 9/16
9:00 am-10:20 am
Nonstop3h 20m
Denver Intl
Wed 9/23
1:25 pm-10:49 pm
1 stop7h 24m
$383
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Mon 9/14
4:50 pm-6:10 pm
Nonstop3h 20m
Denver Intl
Sat 9/19
10:52 am-3:46 pm
Nonstop2h 54m
$386
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Sat 9/19
5:45 am-10:09 am
1 stop6h 24m
Denver Intl
Wed 9/23
11:00 am-3:54 pm
Nonstop2h 54m
$389
Showing 1-10 of 47 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-MTJ
TYS-DRO
TYS-GJT
TYS-COS
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-MTJ
TYS-DRO
TYS-GJT
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 $242). Flying from Knoxville to Colorado in March is currently the most expensive (average of $363). 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 July 28, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 53% on flights from Knoxville to Colorado by exploring options for tickets at noon.
Weekly flight availability from Knoxville to Colorado
Explore weekly flight availability from Knoxville to Colorado. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2026.
The most flights from TYS to USCO are scheduled on a Monday (4 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).
How much does it cost to fly round-trip from Knoxville to Colorado?
Airfare is below average for this route at the moment.
Knoxville to Colorado flights typically cost between $123 and $387 in September.The cheapest round-trip price found within the last 5 days was $117 on Allegiant Air (Sep 6-Sep 10).
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 72 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 July 28, 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.
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
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Knoxville and Colorado flights
Browse other Knoxville and Colorado flight options. Last updated on July 28, 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$158 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$72 | Average$179 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$441 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$222 | Average$396 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$259 | Average$382 | FlexibilityNo cancel fee | On-time63% |