$146+ Cheap flights from Raleigh (RDU) 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — DEN
Aug 18 — Aug 251
Round-trip
1 adult, Economy
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Cheapest flights from Raleigh to ColoradoExplore the most affordable flight options available from Raleigh to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
Explore the most affordable flight options available from Raleigh to Colorado. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Wed 9/24:02 pm
RDU
- DEN
1 stop8h 08m
Frontier
Tue 9/89:21 pm
DEN
- RDU
2 stops15h 46m
Frontier
Deal found 7/14![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Thu 10/2912:48 pm
RDU
- DEN
Nonstop4h 04m
Frontier
Thu 11/510:00 am
DEN
- RDU
2 stops12h 17m
Frontier
Deal found 7/14![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Fri 8/1412:04 pm
RDU
- DEN
1 stop12h 24m
Frontier
Mon 8/247:00 am
DEN
- RDU
2 stops24h 52m
Frontier
Deal found 7/14![Frontier logo]()
$256
This CheapOair deal was found by Cheapflights users on 7/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Sat 8/156:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/15![Frontier logo]()
$257
This Frontier deal was found by Cheapflights users on 7/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Mon 8/106:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/14![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Tue 8/45:01 pm
RDU
- DEN
1 stop7h 04m
Frontier
Tue 8/1110:09 am
DEN
- RDU
2 stops10h 35m
Frontier
Deal found 7/14![Frontier logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/810:11 am
RDU
- DEN
1 stop11h 52m
Frontier
Mon 8/1011:59 pm
DEN
- RDU
1 stop6h 12m
Frontier
Deal found 7/18![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Tue 8/1112:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Tue 8/1811:59 pm
DEN
- RDU
1 stop6h 32m
Frontier
Deal found 7/16![Frontier logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 8/56:15 am
RDU
- DEN
1 stop9h 46m
Frontier
Sun 8/911:46 pm
DEN
- RDU
1 stop6h 25m
Frontier
Deal found 7/15![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:20 pm
RDU
- DEN
1 stop8h 13m
Frontier
Mon 9/146:30 am
DEN
- RDU
Nonstop3h 23m
Frontier
Deal found 7/15![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/1010:20 am
RDU
- DEN
1 stop15h 38m
Frontier
Sun 8/231:28 pm
DEN
- RDU
Nonstop3h 31m
Frontier
Deal found 7/16![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 10/214:05 pm
RDU
- DEN
1 stop8h 28m
Frontier
Sun 10/2511:48 pm
DEN
- RDU
1 stop5h 42m
Frontier
Deal found 7/15![Frontier logo]()
$265
Best flights from Raleigh to ColoradoDiscover carefully curated flight deals from Raleigh to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
Discover carefully curated flight deals from Raleigh to Colorado that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 19, 2026.
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 9/98:15 am
RDU
- DEN
Nonstop3h 50m
United Airlines
Mon 9/145:55 pm
DEN
- RDU
Nonstop3h 31m
United Airlines
Deal found 7/17![United Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 9/102:18 pm
RDU
- DRO
1 stop7h 21m
American Airlines
Tue 9/157:00 am
DRO
- RDU
1 stop7h 05m
American Airlines
Deal found 7/17![American Airlines logo]()
$338
This Southwest deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/227:30 am
RDU
- DEN
2 stops7h 35m
Southwest
Mon 8/2411:50 am
DEN
- RDU
2 stops7h 15m
Southwest
Deal found 7/16![Southwest logo]()
$347
This Delta deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 10/511:13 am
RDU
- DEN
1 stop5h 40m
Delta
Tue 10/136:00 am
DEN
- RDU
1 stop6h 23m
Delta
Deal found 7/17![Delta logo]()
$355
This Alaska Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/235:50 pm
RDU
- DEN
2 stops26h 20m
Alaska Airlines
Sat 9/263:04 pm
DEN
- RDU
2 stops25h 06m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/26:14 pm
RDU
- ALS
2 stops21h 16m
Multiple Airlines
Thu 8/68:00 am
ALS
- RDU
1 stop25h 31m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$648
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/152:07 pm
RDU
- DRO
1 stop7h 51m
American Airlines
Thu 8/2011:44 am
DRO
- RDU
1 stop9h 25m
American Airlines
Deal found 7/19![American Airlines logo]()
$338
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/156:25 am
RDU
- DRO
2 stops8h 07m
United Airlines
Thu 8/201:34 pm
DRO
- RDU
2 stops8h 25m
United Airlines
Deal found 7/19![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 7/14. 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 9/210:15 am
RDU
- DEN
2 stops6h 55m
Southwest
Tue 9/811:15 am
DEN
- RDU
2 stops7h 40m
Southwest
Deal found 7/14![Southwest logo]()
$357
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 8/242:07 pm
RDU
- ASE
1 stop8h 09m
American Airlines
Wed 8/2612:50 pm
ASE
- RDU
2 stops8h 03m
American Airlines
Deal found 7/19![American Airlines logo]()
$356
This Southwest deal was found by Cheapflights users on 7/14. 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.
Thu 8/2010:20 am
RDU
- DEN
2 stops7h 40m
Southwest
Thu 8/2712:10 pm
DEN
- RDU
2 stops6h 55m
Southwest
Deal found 7/14![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:15 am
RDU
- GJT
1 stop8h 22m
United Airlines
Sat 8/2911:15 am
GJT
- RDU
1 stop8h 04m
United Airlines
Deal found 7/17![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 9/282:59 pm
RDU
- COS
1 stop6h 57m
Delta
Wed 9/306:00 am
COS
- RDU
1 stop6h 16m
Delta
Deal found 7/19![Delta logo]()
$419
This Southwest deal was found by Cheapflights users on 7/14. 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.
Thu 8/2011:30 am
RDU
- DEN
2 stops7h 25m
Southwest
Mon 8/2411:50 am
DEN
- RDU
2 stops7h 15m
Southwest
Deal found 7/14![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/204:23 pm
RDU
- GJT
1 stop6h 12m
United Airlines
Tue 8/253:12 pm
GJT
- RDU
1 stop6h 14m
United Airlines
Deal found 7/16![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 7/15. 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 8/2012:09 pm
RDU
- GJT
2 stops11h 25m
American Airlines
Mon 8/2412:12 pm
GJT
- RDU
2 stops8h 41m
American Airlines
Deal found 7/15![American Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/2610:15 am
RDU
- DEN
2 stops6h 55m
Southwest
Thu 8/2712:10 pm
DEN
- RDU
2 stops6h 55m
Southwest
Deal found 7/18![Southwest logo]()
$366
This Southwest deal was found by Cheapflights users on 7/14. 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.
Thu 8/131:40 pm
RDU
- COS
2 stops10h 05m
Southwest
Sat 8/156:20 am
COS
- RDU
1 stop6h 50m
Southwest
Deal found 7/14![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 9/193:05 pm
RDU
- DRO
2 stops8h 55m
United Airlines
Tue 9/225:15 am
DRO
- RDU
2 stops8h 22m
United Airlines
Deal found 7/16![United Airlines logo]()
$417
This Delta deal was found by Cheapflights users on 7/14. 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.
Thu 11/196:35 am
RDU
- ASE
1 stop7h 00m
Delta
Sun 11/221:50 pm
ASE
- RDU
1 stop6h 58m
Delta
Deal found 7/14![Delta logo]()
$535
This United Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” 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 10/611:30 am
RDU
- GUC
2 stops10h 59m
United Airlines
Sat 10/101:31 pm
GUC
- RDU
2 stops8h 28m
United Airlines
Deal found 7/19![United Airlines logo]()
$419
This Southwest deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 10/136:10 am
RDU
- COS
1 stop5h 35m
Southwest
Thu 10/222:05 pm
COS
- RDU
2 stops7h 45m
Southwest
Deal found 7/18![Southwest logo]()
$384
This American Airlines deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 7/305:01 am
RDU
- GUC
2 stops9h 01m
American Airlines
Thu 8/612:55 pm
GUC
- RDU
1 stop6h 21m
American Airlines
Deal found 7/18![American Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/307:54 pm
RDU
- ALS
1 stop19h 36m
Multiple Airlines
Sun 9/62:00 pm
ALS
- RDU
1 stop27h 09m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$679
This Southwest deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 8/208:25 am
RDU
- COS
1 stop5h 20m
Southwest
Mon 8/246:00 am
COS
- RDU
2 stops8h 10m
Southwest
Deal found 7/17![Southwest logo]()
$384
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/291:15 pm
RDU
- COS
2 stops9h 29m
United Airlines
Mon 8/311:03 pm
COS
- RDU
1 stop8h 23m
United Airlines
Deal found 7/16![United Airlines logo]()
$446
This American Airlines deal was found by Cheapflights users on 7/14. 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.
Thu 8/612:09 pm
RDU
- DRO
2 stops11h 05m
American Airlines
Tue 8/116:52 am
DRO
- RDU
1 stop6h 55m
American Airlines
Deal found 7/14![American Airlines logo]()
$514
This Southwest deal was found by Cheapflights users on 7/14. 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.
Tue 10/138:05 am
RDU
- COS
2 stops9h 30m
Southwest
Mon 10/192:05 pm
COS
- RDU
2 stops7h 45m
Southwest
Deal found 7/14![Southwest logo]()
$405
This United Airlines deal was found by Cheapflights users on 7/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:05 pm
RDU
- COS
2 stops8h 50m
United Airlines
Wed 8/197:40 am
COS
- RDU
1 stop6h 19m
United Airlines
Deal found 7/15![United Airlines logo]()
$446
This American Airlines deal was found by Cheapflights users on 7/17. Clicking the “Pick Dates” 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 9/102:18 pm
RDU
- DRO
1 stop7h 21m
American Airlines
Sun 9/137:00 am
DRO
- RDU
1 stop7h 05m
American Airlines
Deal found 7/17![American Airlines logo]()
$521
Last-minute flights from Raleigh to ColoradoDiscover last-minute flight deals from Raleigh to Colorado. Data last updated July 19, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Colorado. Data last updated July 19, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Tue 8/45:01 pm
RDU
- DEN
1 stop7h 04m
Frontier
Tue 8/1110:09 am
DEN
- RDU
2 stops10h 35m
Frontier
Deal found 7/14![Frontier logo]()
$259
This Super.com deal was found by Cheapflights users on 7/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Sat 8/156:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/15![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Wed 8/56:15 am
RDU
- DEN
1 stop9h 46m
Frontier
Sun 8/911:46 pm
DEN
- RDU
1 stop6h 25m
Frontier
Deal found 7/15![Frontier logo]()
$262
This Frontier deal was found by Cheapflights users on 7/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Mon 8/106:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/14![Frontier logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/66:14 pm
RDU
- DEN
1 stop16h 49m
Frontier
Sun 8/911:46 pm
DEN
- RDU
1 stop6h 25m
Frontier
Deal found 7/18![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/810:11 am
RDU
- DEN
1 stop11h 52m
Frontier
Mon 8/1011:59 pm
DEN
- RDU
1 stop6h 12m
Frontier
Deal found 7/18![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Sat 8/82:31 pm
RDU
- DEN
1 stop10h 29m
Frontier
Wed 8/126:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/16![Frontier logo]()
$263
This CheapOair deal was found by Cheapflights users on 7/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Sat 8/156:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 7/15![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/1010:20 am
RDU
- DEN
1 stop15h 38m
Frontier
Sun 8/231:28 pm
DEN
- RDU
Nonstop3h 31m
Frontier
Deal found 7/16![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Tue 8/1112:26 pm
RDU
- DEN
Nonstop3h 53m
Frontier
Tue 8/1811:59 pm
DEN
- RDU
1 stop6h 32m
Frontier
Deal found 7/16![Frontier logo]()
$261
This Southwest deal was found by Cheapflights users on 7/14. 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.
Thu 8/131:40 pm
RDU
- COS
1 stop10h 10m
Southwest
Sat 8/156:20 am
COS
- RDU
1 stop6h 50m
Southwest
Deal found 7/14![Southwest logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 7/14. 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.
Fri 8/1412:04 pm
RDU
- DEN
1 stop12h 24m
Frontier
Mon 8/247:00 am
DEN
- RDU
2 stops24h 52m
Frontier
Deal found 7/14![Frontier logo]()
$256
One-way flights from Raleigh to ColoradoSearch for one-way flight options from Raleigh to Colorado. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
Search for one-way flight options from Raleigh to Colorado. Find affordable one-way fares based on user searches. Data last updated July 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” 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 8/172:36 pm
RDU
- DEN
2 stops20h 43m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Sat 8/812:04 pm
RDU
- DEN
1 stop22h 59m
Frontier
Deal found 7/15![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:15 am
RDU
- DEN
2 stops16h 54m
Frontier
Deal found 7/16![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:01 pm
RDU
- DEN
1 stop7h 04m
Frontier
Deal found 7/15![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/37:32 pm
RDU
- DEN
2 stops28h 33m
Frontier
Deal found 7/14![Frontier logo]()
$150
This Trip.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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.
Sun 10/44:20 pm
RDU
- DEN
1 stop8h 13m
Frontier
Deal found 7/16![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/38:29 pm
RDU
- DEN
3 stops25h 34m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$154
This CheapOair deal was found by Cheapflights users on 7/15. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2012:30 pm
RDU
- DEN
1 stop26h 50m
Frontier
Deal found 7/15![Frontier logo]()
$157
This American Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/306:30 am
RDU
- EGE
1 stop8h 58m
American Airlines
Deal found 7/16![American Airlines logo]()
$158
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/166:14 pm
RDU
- DEN
1 stop16h 49m
Frontier
Deal found 7/16![Frontier logo]()
$158
This United Airlines deal was found by Cheapflights users on 7/14. 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 8/188:15 am
RDU
- DEN
Nonstop3h 50m
United Airlines
Deal found 7/14![United Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 8/26:14 pm
RDU
- DEN
2 stops54h 41m
Frontier
Deal found 7/14![Frontier logo]()
$160
Find flight deals from Raleigh to Colorado
Keep the following information in mind while searching for Raleigh to Colorado flight deals. Data was last updated July 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $254 (Kiwi.com) |
One-way from | $146 (Kiwi.com) |
Popular in | June |
Cheapest in | January |
Average price | $415 |
Good round-trip deal | $344 or less |
Good one-way deal | $196 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Raleigh 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 19, 2026.
Use the filters below to find and compare flights from Raleigh to Colorado that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Wed 9/9
8:15 am-10:05 am
Nonstop3h 50m
Denver Intl
Mon 9/14
5:55 pm-11:26 pm
Nonstop3h 31m
$335
RaleighDurango
RDU - DRO
RDUDRO
Raleigh-Durham
Thu 9/10
2:18 pm-7:39 pm
1 stop7h 21m
Durango La Plata County
Tue 9/15
7:00 am-4:05 pm
1 stop7h 05m
$338
RaleighDurango
RDU - DRO
RDUDRO
Raleigh-Durham
Sat 8/15
2:07 pm-7:58 pm
1 stop7h 51m
Durango La Plata County
Thu 8/20
11:44 am-11:09 pm
1 stop9h 25m
$338
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Sat 8/22
7:30 am-1:05 pm
2 stops7h 35m
Denver Intl
Mon 8/24
11:50 am-9:05 pm
2 stops7h 15m
$347
RaleighDurango
RDU - DRO
RDUDRO
Raleigh-Durham
Sat 8/15
6:25 am-12:32 pm
2 stops8h 07m
Durango La Plata County
Thu 8/20
1:34 pm-11:59 pm
2 stops8h 25m
$349
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Mon 10/5
11:13 am-2:53 pm
1 stop5h 40m
Denver Intl
Tue 10/13
6:00 am-2:23 pm
1 stop6h 23m
$355
RaleighAspen
RDU - ASE
RDUASE
Raleigh-Durham
Mon 8/24
2:07 pm-8:16 pm
1 stop8h 09m
Aspen Pitkin County
Wed 8/26
12:50 pm-10:53 pm
2 stops8h 03m
$356
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Wed 9/2
10:15 am-3:10 pm
2 stops6h 55m
Denver Intl
Tue 9/8
11:15 am-8:55 pm
2 stops7h 40m
$357
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Thu 8/20
10:20 am-4:00 pm
2 stops7h 40m
Denver Intl
Thu 8/27
12:10 pm-9:05 pm
2 stops6h 55m
$357
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Thu 8/20
11:30 am-4:55 pm
2 stops7h 25m
Denver Intl
Mon 8/24
11:50 am-9:05 pm
2 stops7h 15m
$357
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Raleigh to Colorado
Have a flexible travel schedule? Discover the best time to fly to Colorado from Raleigh with our price prediction graph.
RDU-DEN
RDU-EGE
RDU-COS
RDU-ALS
RDU-ASE
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 Raleigh to Colorado
RDU-USCO
RDU-DEN
RDU-EGE
RDU-COS
RDU-ALS
What is the cheapest month to book a flight from Raleigh to Colorado?
Currently, January is the cheapest month in which you can book a flight from Raleigh to Colorado (average of $281). Flying from Raleigh to Colorado in June is currently the most expensive (average of $465). 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 RDU to CO?
Find hourly flight availability from Raleigh 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 19, 2026.
It’s optimal to fly from Raleigh to Colorado at noon. By choosing this option you can save up to 47% on the cost of your flight, compared to a flight in the morning.
Weekly flight availability from Raleigh to Colorado
Explore weekly flight availability from Raleigh 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 19, 2026.
The most flights from RDU to USCO are scheduled on a Saturday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Raleigh to Colorado?
How far ahead should I book a flight from Raleigh to Colorado?
Booking 50 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh to Colorado. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Raleigh to Colorado?
Use this chart to determine the cheapest time to fly round-trip from Raleigh to Colorado. Price data was last updated on July 18, 2026.
Travelers seeking maximum savings on their Raleigh to Colorado flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday 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 July 19, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Raleigh to Colorado by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from Raleigh 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 Raleigh to Colorado
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Colorado by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Raleigh to Colorado by cabin class
Find flights from Raleigh to Colorado, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Raleigh and Colorado flights
Browse other Raleigh and Colorado flight options. Last updated on July 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Raleigh to Colorado flights
Consider these flights traveling from Raleigh to Colorado.
Top 6 airlines flying from Raleigh to Colorado
Discover the top 6 airlines that operate flights from Raleigh 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 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$157 | Average$374 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$200 | Average$509 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$203 | Average$469 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$205 | Average$457 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$216 | Average$413 | FlexibilityNo cancel fee | On-timeN/A |