$48+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — DEN
Jul 15 — Jul 221
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 June 15, 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 June 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/278:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$129
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Sun 9/138:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$130
This Kissandfly.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.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
Allegiant Air
Thu 8/139:11 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:00 am
TYS
- DEN
Nonstop3h 10m
Allegiant Air
Sun 8/239:00 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$133
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Sun 9/138:55 am
DEN
- TYS
Nonstop2h 49m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Thu 10/158:26 am
DEN
- TYS
Nonstop2h 45m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$144
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$156
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:03 am
TYS
- COS
1 stop5h 15m
American Airlines
Thu 9/101:18 pm
COS
- TYS
1 stop8h 04m
American Airlines
Deal found 6/10![American Airlines logo]()
$220
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:37 am
TYS
- COS
1 stop6h 15m
American Airlines
Tue 7/213:41 pm
COS
- TYS
1 stop6h 10m
American Airlines
Deal found 6/14![American Airlines logo]()
$301
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:25 pm
TYS
- MTJ
1 stop5h 44m
United Airlines
Wed 11/187:30 am
MTJ
- TYS
1 stop5h 06m
United Airlines
Deal found 6/10![United Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 6/15. 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 11/23:55 pm
TYS
- COS
1 stop7h 26m
Delta
Mon 11/96:00 am
COS
- TYS
1 stop5h 23m
Delta
Deal found 6/15![Delta logo]()
$329
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 June 15, 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 June 15, 2026.
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/194:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Sun 8/235:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 6/10![United Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:47 am
TYS
- COS
1 stop6h 11m
Delta
Mon 11/91:40 pm
COS
- TYS
1 stop6h 05m
Delta
Deal found 6/14![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 6/15. 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 7/95:37 am
TYS
- GJT
1 stop6h 49m
American Airlines
Tue 7/1412:05 pm
GJT
- TYS
2 stops9h 46m
American Airlines
Deal found 6/15![American Airlines logo]()
$334
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/53:00 pm
TYS
- COS
1 stop8h 45m
Southwest
Sun 8/96:05 am
COS
- TYS
2 stops12h 40m
Southwest
Deal found 6/10![Southwest logo]()
$345
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:57 pm
TYS
- COS
1 stop5h 24m
Delta
Thu 10/291:40 pm
COS
- TYS
1 stop6h 05m
Delta
Deal found 6/12![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:16 am
TYS
- COS
2 stops11h 52m
United Airlines
Sat 11/141:50 pm
COS
- TYS
2 stops7h 47m
United Airlines
Deal found 6/11![United Airlines logo]()
$339
This American Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:03 am
TYS
- GJT
1 stop6h 02m
American Airlines
Fri 8/1412:12 pm
GJT
- TYS
2 stops8h 46m
American Airlines
Deal found 6/10![American Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:40 pm
TYS
- DEN
Nonstop3h 20m
Southwest
Sun 7/2611:55 pm
DEN
- TYS
1 stop11h 50m
Southwest
Deal found 6/11![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:20 pm
TYS
- DEN
1 stop7h 05m
Delta
Sun 9/276:00 am
DEN
- TYS
1 stop5h 28m
Delta
Deal found 6/12![Delta logo]()
$358
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/174:25 pm
TYS
- MTJ
1 stop5h 44m
United Airlines
Wed 11/187:30 am
MTJ
- TYS
1 stop5h 06m
United Airlines
Deal found 6/12![United Airlines logo]()
$374
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:10 am
TYS
- GJT
1 stop6h 56m
American Airlines
Sat 11/710:36 am
GJT
- TYS
1 stop4h 52m
American Airlines
Deal found 6/14![American Airlines logo]()
$380
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/157:10 am
TYS
- DEN
2 stops8h 45m
Southwest
Sat 7/185:05 am
DEN
- TYS
1 stop7h 00m
Southwest
Deal found 6/14![Southwest logo]()
$392
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 6/13![American Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am
TYS
- ASE
1 stop6h 35m
Delta
Sat 11/141:50 pm
ASE
- TYS
1 stop7h 56m
Delta
Deal found 6/12![Delta logo]()
$389
This Southwest deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:40 am
TYS
- DEN
2 stops8h 40m
Southwest
Thu 7/3012:40 pm
DEN
- TYS
2 stops6h 35m
Southwest
Deal found 6/10![Southwest logo]()
$397
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:56 pm
TYS
- DEN
Nonstop3h 24m
United Airlines
Thu 8/1311:59 pm
DEN
- TYS
1 stop8h 38m
United Airlines
Deal found 6/12![United Airlines logo]()
$410
This Southwest deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/85:30 pm
TYS
- DEN
2 stops6h 55m
Southwest
Sun 9/139:55 pm
DEN
- TYS
2 stops13h 30m
Southwest
Deal found 6/13![Southwest logo]()
$400
This United Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:19 pm
TYS
- DEN
1 stop7h 11m
United Airlines
Thu 8/65:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 6/10![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:45 am
TYS
- DRO
1 stop5h 40m
United Airlines
Tue 11/175:30 am
DRO
- TYS
1 stop7h 06m
United Airlines
Deal found 6/12![United Airlines logo]()
$428
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am
TYS
- EGE
1 stop8h 17m
American Airlines
Thu 9/2412:58 pm
EGE
- TYS
1 stop8h 24m
American Airlines
Deal found 6/11![American Airlines logo]()
$475
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/273:25 pm
TYS
- COS
1 stop8h 04m
United Airlines
Sat 7/48:45 am
COS
- TYS
1 stop5h 08m
United Airlines
Deal found 6/13![United Airlines logo]()
$457
This Southwest deal was found by Cheapflights users on 6/15. 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 10/107:00 am
TYS
- COS
2 stops12h 15m
Southwest
Sat 10/172:55 pm
COS
- TYS
2 stops19h 00m
Southwest
Deal found 6/15![Southwest logo]()
$504
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/265:33 pm
TYS
- DRO
1 stop6h 42m
American Airlines
Sat 7/45:28 am
DRO
- TYS
2 stops8h 14m
American Airlines
Deal found 6/13![American Airlines logo]()
$509
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:50 pm
TYS
- DEN
Nonstop3h 20m
United Airlines
Sun 8/235:35 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 6/14![United Airlines logo]()
$457
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/71:35 pm
TYS
- DEN
1 stop9h 52m
United Airlines
Sun 8/95:25 pm
DEN
- TYS
Nonstop2h 54m
United Airlines
Deal found 6/14![United Airlines logo]()
$467
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:45 am
TYS
- EGE
1 stop5h 36m
United Airlines
Tue 11/173:21 pm
EGE
- TYS
1 stop4h 59m
United Airlines
Deal found 6/12![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:25 pm
TYS
- MTJ
1 stop5h 44m
United Airlines
Sat 11/141:35 pm
MTJ
- TYS
2 stops8h 02m
United Airlines
Deal found 6/12![United Airlines logo]()
$488
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:37 am
TYS
- ASE
1 stop6h 23m
American Airlines
Wed 7/17:36 am
ASE
- TYS
1 stop7h 07m
American Airlines
Deal found 6/12![American Airlines logo]()
$730
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/274:56 pm
TYS
- MTJ
1 stop5h 14m
United Airlines
Sat 7/412:31 pm
MTJ
- TYS
1 stop6h 08m
United Airlines
Deal found 6/12![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/96:00 am
TYS
- COS
1 stop7h 09m
United Airlines
Sun 7/1212:05 pm
COS
- TYS
1 stop6h 43m
United Airlines
Deal found 6/11![United Airlines logo]()
$499
Last-minute flights from Knoxville to ColoradoDiscover last-minute flight deals from Knoxville to Colorado. Data last updated June 15, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Colorado. Data last updated June 15, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:37 am
TYS
- COS
1 stop6h 15m
American Airlines
Tue 7/143:41 pm
COS
- TYS
1 stop6h 10m
American Airlines
Deal found 6/11![American Airlines logo]()
$360
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/95:31 pm
TYS
- GJT
1 stop7h 20m
American Airlines
Tue 7/1412:05 pm
GJT
- TYS
2 stops9h 46m
American Airlines
Deal found 6/11![American Airlines logo]()
$334
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/127:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:30 am
TYS
- DEN
1 stop27h 19m
Multiple Airlines
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$186
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:37 am
TYS
- COS
1 stop6h 15m
American Airlines
Tue 7/213:41 pm
COS
- TYS
1 stop6h 10m
American Airlines
Deal found 6/14![American Airlines logo]()
$301
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:37 am
TYS
- COS
1 stop6h 15m
American Airlines
Mon 7/203:46 pm
COS
- TYS
1 stop6h 05m
American Airlines
Deal found 6/14![American Airlines logo]()
$382
This CheapOair deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/167:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:30 am
TYS
- DEN
1 stop27h 19m
Multiple Airlines
Thu 7/239:01 am
DEN
- TYS
Nonstop2h 50m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$188
This CheapOair deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$187
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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
Thu 7/309:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$156
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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 6/11![Allegiant Air logo]()
$170
This Cheapflightsfares deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 am
TYS
- DEN
Nonstop3h 11m
Allegiant Air
Sun 8/29:01 am
DEN
- TYS
Nonstop2h 50m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$191
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 June 15, 2026.
Search for one-way flight options from Knoxville to Colorado. Find affordable one-way fares based on user searches. Data last updated June 15, 2026.
This CheapOair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$48
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$52
This Kiwi.com deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/11![Allegiant Air logo]()
$58
This Cheapflightsfares deal was found by Cheapflights users on 6/15. 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 10/256:30 am
TYS
- DEN
Nonstop3h 06m
Allegiant Air
Deal found 6/15![Allegiant Air logo]()
$61
This CheapOair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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
Deal found 6/12![Allegiant Air logo]()
$62
This Frontier deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:19 pm
TYS
- DEN
Nonstop3h 23m
Frontier
Deal found 6/11![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:00 am
TYS
- DEN
Nonstop3h 21m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 9/107:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/15![Allegiant Air logo]()
$72
This Cheapflightsfares deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am
TYS
- DEN
Nonstop3h 05m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:15 am
TYS
- COS
1 stop26h 44m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$149
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:21 pm
TYS
- COS
1 stop9h 06m
United Airlines
Deal found 6/13![United Airlines logo]()
$151
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/303:25 pm
TYS
- COS
2 stops8h 41m
United Airlines
Deal found 6/14![United Airlines logo]()
$166
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 June 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $129 (Cheapflightsfares) |
One-way from | $48 (CheapOair) |
Popular in | March |
Cheapest in | September |
Average price | $336 |
Good round-trip deal | $284 or less |
Good one-way deal | $191 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 June 15, 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
Quickest round-trip
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Wed 8/19
4:50 pm-6:10 pm
Nonstop3h 20m
Denver Intl
Sun 8/23
5:35 pm-10:29 pm
Nonstop2h 54m
$294
KnoxvilleColorado Springs
TYS - COS
TYSCOS
Knoxville McGhee Tyson
Mon 11/2
8:47 am-12:58 pm
1 stop6h 11m
Colorado Springs
Mon 11/9
1:40 pm-9:45 pm
1 stop6h 05m
$329
KnoxvilleColorado Springs
TYS - COS
TYSCOS
Knoxville McGhee Tyson
Thu 10/22
5:57 pm-9:21 pm
1 stop5h 24m
Colorado Springs
Thu 10/29
1:40 pm-9:45 pm
1 stop6h 05m
$329
KnoxvilleGrand Junction
TYS - GJT
TYSGJT
Knoxville McGhee Tyson
Thu 7/9
5:37 am-10:26 am
1 stop6h 49m
Grand Junction Regnl
Tue 7/14
12:05 pm-11:51 pm
2 stops9h 46m
$334
KnoxvilleColorado Springs
TYS - COS
TYSCOS
Knoxville McGhee Tyson
Wed 11/11
10:16 am-8:08 pm
2 stops11h 52m
Colorado Springs
Sat 11/14
1:50 pm-11:37 pm
2 stops7h 47m
$339
KnoxvilleColorado Springs
TYS - COS
TYSCOS
Knoxville McGhee Tyson
Wed 8/5
3:00 pm-9:45 pm
1 stop8h 45m
Colorado Springs
Sun 8/9
6:05 am-8:45 pm
2 stops12h 40m
$345
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Thu 9/24
6:20 pm-11:25 pm
1 stop7h 05m
Denver Intl
Sun 9/27
6:00 am-1:28 pm
1 stop5h 28m
$358
KnoxvilleGrand Junction
TYS - GJT
TYSGJT
Knoxville McGhee Tyson
Wed 8/5
6:03 am-10:05 am
1 stop6h 02m
Grand Junction Regnl
Fri 8/14
12:12 pm-10:58 pm
2 stops8h 46m
$365
KnoxvilleDenver
TYS - DEN
TYSDEN
Knoxville McGhee Tyson
Tue 7/14
5:40 pm-7:00 pm
Nonstop3h 20m
Denver Intl
Sun 7/26
11:55 pm-1:45 pm
1 stop11h 50m
$373
KnoxvilleMontrose
TYS - MTJ
TYSMTJ
Knoxville McGhee Tyson
Tue 11/17
4:25 pm-8:09 pm
1 stop5h 44m
Montrose County
Wed 11/18
7:30 am-2:36 pm
1 stop5h 06m
$374
Showing 1-10 of 59 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-COS
TYS-GJT
TYS-MTJ
TYS-EGE
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-COS
TYS-GJT
TYS-MTJ
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 June 15, 2026.
Unlike in the morning, when flights are generally more expensive, you can save up to 54% 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 June 15, 2026.
The most flights from TYS to USCO are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, 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?
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 64 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Knoxville to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Knoxville to Colorado. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Knoxville to Colorado flight should consider departing on Friday at noon when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
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 June 15, 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.
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.9
Crew
8.5
Food
7.2
Comfort
7.8
Entertainment
7.8
Boarding
8.1
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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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 June 15, 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 June 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$62 | Average$158 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$71 | Average$177 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$124 | Average$317 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$218 | Average$421 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$229 | Average$438 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$254 | Average$382 | FlexibilityNo cancel fee | On-time63% |