$64+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — DEN
May 10 — May 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Raleigh to Colorado with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Raleigh to Colorado
Cheapest
Best
Last-minute
One-way
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 April 10, 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 April 10, 2026.
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Mon 5/116:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:10 pm
RDU
- DEN
1 stop10h 49m
Frontier
Sat 5/211:59 pm
DEN
- RDU
1 stop6h 24m
Frontier
Deal found 4/9![Frontier logo]()
$144
This Frontier deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:52 pm
RDU
- DEN
1 stop14h 32m
Frontier
Sat 6/611:59 pm
DEN
- RDU
1 stop12h 36m
Frontier
Deal found 4/8![Frontier logo]()
$145
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:10 pm
RDU
- DEN
1 stop10h 49m
Frontier
Sun 5/107:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:35 pm
RDU
- DEN
Nonstop3h 59m
Frontier
Sat 5/97:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$147
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Mon 4/273:45 pm
DEN
- RDU
Nonstop3h 19m
Frontier
Deal found 4/6![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Thu 5/711:59 pm
DEN
- RDU
1 stop12h 28m
Frontier
Deal found 4/8![Frontier logo]()
$149
This Booking.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:16 am
RDU
- DEN
1 stop14h 55m
Frontier
Wed 5/276:00 am
DEN
- RDU
1 stop7h 00m
Frontier
Deal found 4/5![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:45 pm
RDU
- DEN
Nonstop3h 59m
Frontier
Sat 5/97:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
RDU
- DEN
1 stop8h 09m
Frontier
Sun 5/311:59 pm
DEN
- RDU
1 stop6h 47m
Frontier
Deal found 4/6![Frontier logo]()
$152
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:26 pm
RDU
- DEN
Nonstop4h 06m
Frontier
Wed 6/36:00 am
DEN
- RDU
1 stop7h 00m
Frontier
Deal found 4/6![Frontier logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
RDU
- DEN
1 stop8h 09m
Frontier
Mon 5/48:00 am
DEN
- RDU
1 stop8h 33m
Frontier
Deal found 4/6![Frontier logo]()
$154
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 April 10, 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 April 10, 2026.
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
RDU
- DEN
1 stop6h 20m
Delta
Sat 5/94:10 pm
DEN
- RDU
1 stop5h 30m
Delta
Deal found 4/5![Delta logo]()
$217
This Southwest deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/305:15 am
RDU
- DEN
Nonstop3h 50m
Southwest
Mon 5/47:05 pm
DEN
- RDU
Nonstop3h 15m
Southwest
Deal found 4/9![Southwest logo]()
$227
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:00 am
RDU
- DEN
Nonstop4h 03m
United Airlines
Tue 5/55:25 pm
DEN
- RDU
Nonstop3h 25m
United Airlines
Deal found 4/5![United Airlines logo]()
$287
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/252:20 pm
RDU
- ASE
1 stop7h 58m
American Airlines
Sat 5/3012:51 pm
ASE
- RDU
1 stop6h 27m
American Airlines
Deal found 4/7![American Airlines logo]()
$360
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:26 pm
RDU
- ALS
1 stop7h 59m
Multiple Airlines
Mon 6/12:00 pm
ALS
- RDU
1 stop19h 31m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/812:50 pm
RDU
- DEN
2 stops9h 05m
Southwest
Sat 5/1610:30 am
DEN
- RDU
1 stop5h 00m
Southwest
Deal found 4/9![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/611:34 am
RDU
- COS
2 stops12h 39m
Delta
Fri 5/81:55 pm
COS
- RDU
1 stop8h 21m
Delta
Deal found 4/8![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:15 am
RDU
- COS
1 stop6h 05m
Southwest
Mon 5/115:20 pm
COS
- RDU
1 stop5h 00m
Southwest
Deal found 4/9![Southwest logo]()
$257
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/25:15 pm
RDU
- DEN
Nonstop3h 50m
Southwest
Sun 5/37:05 pm
DEN
- RDU
Nonstop3h 15m
Southwest
Deal found 4/6![Southwest logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:30 am
RDU
- COS
2 stops10h 10m
United Airlines
Wed 6/312:16 pm
COS
- RDU
1 stop7h 21m
United Airlines
Deal found 4/5![United Airlines logo]()
$352
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/72:00 pm
RDU
- COS
2 stops10h 15m
Southwest
Thu 5/145:00 am
COS
- RDU
1 stop12h 05m
Southwest
Deal found 4/8![Southwest logo]()
$268
This American Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:19 pm
RDU
- DRO
1 stop7h 41m
American Airlines
Tue 9/157:00 am
DRO
- RDU
2 stops8h 16m
American Airlines
Deal found 4/8![American Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:28 am
RDU
- ASE
1 stop6h 51m
Delta
Wed 6/107:36 am
ASE
- RDU
1 stop7h 44m
Delta
Deal found 4/5![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:26 pm
RDU
- COS
2 stops8h 33m
United Airlines
Mon 5/116:57 pm
COS
- RDU
2 stops12h 41m
United Airlines
Deal found 4/9![United Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/165:45 am
RDU
- COS
1 stop5h 30m
Southwest
Tue 5/194:05 pm
COS
- RDU
1 stop5h 40m
Southwest
Deal found 4/8![Southwest logo]()
$288
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:28 am
RDU
- ASE
1 stop6h 51m
Delta
Sat 5/308:05 am
ASE
- RDU
1 stop5h 24m
Delta
Deal found 4/9![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/34:22 pm
RDU
- DEN
Nonstop4h 03m
United Airlines
Sat 6/65:45 pm
DEN
- RDU
Nonstop3h 31m
United Airlines
Deal found 4/8![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:05 pm
RDU
- EGE
1 stop9h 04m
American Airlines
Mon 5/118:00 am
EGE
- RDU
1 stop8h 36m
American Airlines
Deal found 4/9![American Airlines logo]()
$409
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/24:22 pm
RDU
- GJT
1 stop6h 14m
United Airlines
Sun 9/61:30 pm
GJT
- RDU
1 stop8h 06m
United Airlines
Deal found 4/5![United Airlines logo]()
$370
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/303:50 pm
RDU
- DRO
1 stop7h 33m
American Airlines
Sat 5/2311:25 am
DRO
- RDU
1 stop7h 53m
American Airlines
Deal found 4/9![American Airlines logo]()
$438
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/28:18 am
RDU
- GJT
2 stops10h 59m
United Airlines
Sat 5/97:00 am
GJT
- RDU
1 stop6h 12m
United Airlines
Deal found 4/7![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:40 am
RDU
- DEN
2 stops6h 55m
Southwest
Tue 6/912:20 pm
DEN
- RDU
2 stops6h 45m
Southwest
Deal found 4/6![Southwest logo]()
$342
This American Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/315:00 am
RDU
- EGE
2 stops10h 31m
American Airlines
Wed 6/37:50 am
EGE
- RDU
1 stop6h 09m
American Airlines
Deal found 4/7![American Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/234:18 pm
RDU
- GJT
1 stop8h 00m
United Airlines
Mon 4/271:43 pm
GJT
- RDU
1 stop7h 36m
United Airlines
Deal found 4/8![United Airlines logo]()
$379
This Southwest deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2510:05 am
RDU
- DEN
2 stops9h 50m
Southwest
Mon 4/2711:35 am
DEN
- RDU
2 stops7h 15m
Southwest
Deal found 4/5![Southwest logo]()
$367
This American Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/102:19 pm
RDU
- DRO
1 stop7h 41m
American Airlines
Sun 9/137:00 am
DRO
- RDU
1 stop6h 55m
American Airlines
Deal found 4/5![American Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/58:18 am
RDU
- DRO
2 stops8h 30m
United Airlines
Tue 5/1210:30 am
DRO
- RDU
2 stops9h 28m
United Airlines
Deal found 4/7![United Airlines logo]()
$389
This Southwest deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:15 pm
RDU
- DEN
Nonstop3h 55m
Southwest
Mon 4/277:05 pm
DEN
- RDU
Nonstop3h 15m
Southwest
Deal found 4/6![Southwest logo]()
$377
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/55:07 pm
RDU
- ASE
1 stop6h 53m
United Airlines
Wed 6/102:22 pm
ASE
- RDU
2 stops8h 28m
United Airlines
Deal found 4/5![United Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:41 am
RDU
- GUC
1 stop6h 21m
American Airlines
Tue 7/2112:45 pm
GUC
- RDU
2 stops9h 14m
American Airlines
Deal found 4/5![American Airlines logo]()
$480
Last-minute flights from Raleigh to ColoradoDiscover last-minute flight deals from Raleigh to Colorado. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Raleigh to Colorado. Data last updated April 10, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Mon 4/273:45 pm
DEN
- RDU
Nonstop3h 19m
Frontier
Deal found 4/6![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:10 pm
RDU
- DEN
1 stop10h 49m
Frontier
Sat 5/911:59 pm
DEN
- RDU
1 stop7h 17m
Frontier
Deal found 4/9![Frontier logo]()
$144
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/282:10 pm
RDU
- DEN
1 stop10h 49m
Frontier
Sun 5/107:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
RDU
- DEN
1 stop8h 09m
Frontier
Sun 5/311:59 pm
DEN
- RDU
1 stop6h 47m
Frontier
Deal found 4/6![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
RDU
- DEN
1 stop8h 09m
Frontier
Mon 5/48:00 am
DEN
- RDU
1 stop8h 33m
Frontier
Deal found 4/6![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Thu 5/711:59 pm
DEN
- RDU
1 stop12h 28m
Frontier
Deal found 4/8![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Mon 5/116:03 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$143
This Frontier deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:45 pm
RDU
- DEN
Nonstop3h 59m
Frontier
Sat 5/97:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/9![Frontier logo]()
$151
This Frontier deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:23 pm
RDU
- DEN
Nonstop4h 05m
Frontier
Wed 5/67:00 am
DEN
- RDU
Nonstop3h 28m
Frontier
Deal found 4/5![Frontier logo]()
$155
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:15 am
RDU
- COS
1 stop6h 05m
Southwest
Sat 5/91:10 pm
COS
- RDU
1 stop8h 05m
Southwest
Deal found 4/8![Southwest logo]()
$257
This Flybillet deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flybillet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2010:16 am
RDU
- DEN
1 stop14h 55m
Frontier
Wed 5/276:00 am
DEN
- RDU
1 stop7h 00m
Frontier
Deal found 4/5![Frontier logo]()
$150
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:26 pm
RDU
- DEN
Nonstop4h 06m
Frontier
Wed 6/36:00 am
DEN
- RDU
1 stop7h 00m
Frontier
Deal found 4/6![Frontier logo]()
$153
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 April 10, 2026.
Search for one-way flight options from Raleigh to Colorado. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This Frontier deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/249:49 pm
RDU
- DEN
Nonstop4h 10m
Frontier
Deal found 4/6![Frontier logo]()
$64
This Frontier deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:26 pm
RDU
- DEN
Nonstop4h 06m
Frontier
Deal found 4/5![Frontier logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/49:32 pm
RDU
- DEN
1 stop27h 07m
Frontier
Deal found 4/5![Frontier logo]()
$68
This Super.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/224:00 pm
RDU
- DEN
1 stop8h 29m
Frontier
Deal found 4/6![Frontier logo]()
$71
This CheapOair deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:07 pm
RDU
- DEN
1 stop9h 57m
Frontier
Deal found 4/5![Frontier logo]()
$72
This Trip.com deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2912:33 pm
RDU
- DEN
1 stop11h 51m
Frontier
Deal found 4/7![Frontier logo]()
$76
This Super.com deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:33 pm
RDU
- DEN
1 stop11h 51m
Frontier
Deal found 4/9![Frontier logo]()
$77
This Expedia deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:59 pm
RDU
- DEN
1 stop11h 25m
Frontier
Deal found 4/5![Frontier logo]()
$78
This Super.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:49 pm
RDU
- DEN
1 stop8h 40m
Frontier
Deal found 4/5![Frontier logo]()
$79
This Southwest deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:15 am
RDU
- COS
1 stop6h 05m
Southwest
Deal found 4/8![Southwest logo]()
$129
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:26 pm
RDU
- COS
2 stops8h 33m
United Airlines
Deal found 4/6![United Airlines logo]()
$179
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/195:40 am
RDU
- COS
2 stops9h 08m
Delta
Deal found 4/9![Delta logo]()
$195
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 April 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $143 (Frontier) |
One-way from | $64 (Frontier) |
Popular in | June |
Cheapest in | January |
Average price | $312 |
Good round-trip deal | $300 or less |
Good one-way deal | $158 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 April 10, 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
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Sat 5/9
6:00 am-10:20 am
1 stop6h 20m
Denver Intl
Sat 5/9
4:10 pm-11:40 pm
1 stop5h 30m
$217
Quickest round-trip
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Thu 4/30
5:15 am-7:05 am
Nonstop3h 50m
Denver Intl
Mon 5/4
7:05 pm-12:20 am
Nonstop3h 15m
$227
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Fri 5/8
12:50 pm-7:55 pm
2 stops9h 05m
Denver Intl
Sat 5/16
10:30 am-5:30 pm
1 stop5h 00m
$237
RaleighColorado Springs
RDU - COS
RDUCOS
Raleigh-Durham
Fri 5/8
5:15 am-9:20 am
1 stop6h 05m
Colorado Springs
Mon 5/11
5:20 pm-12:20 am
1 stop5h 00m
$257
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Sat 5/2
5:15 pm-7:05 pm
Nonstop3h 50m
Denver Intl
Sun 5/3
7:05 pm-12:20 am
Nonstop3h 15m
$267
RaleighColorado Springs
RDU - COS
RDUCOS
Raleigh-Durham
Thu 5/7
2:00 pm-10:15 pm
2 stops10h 15m
Colorado Springs
Thu 5/14
5:00 am-7:05 pm
1 stop12h 05m
$268
RaleighColorado Springs
RDU - COS
RDUCOS
Raleigh-Durham
Wed 5/6
11:34 am-10:13 pm
2 stops12h 39m
Colorado Springs
Fri 5/8
1:55 pm-12:16 am
1 stop8h 21m
$282
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Tue 5/5
8:00 am-10:03 am
Nonstop4h 03m
Denver Intl
Tue 5/5
5:25 pm-10:50 pm
Nonstop3h 25m
$287
RaleighColorado Springs
RDU - COS
RDUCOS
Raleigh-Durham
Sat 5/16
5:45 am-9:15 am
1 stop5h 30m
Colorado Springs
Tue 5/19
4:05 pm-11:45 pm
1 stop5h 40m
$288
RaleighDenver
RDU - DEN
RDUDEN
Raleigh-Durham
Wed 6/3
6:40 am-11:35 am
2 stops6h 55m
Denver Intl
Tue 6/9
12:20 pm-9:05 pm
2 stops6h 45m
$342
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-COS
RDU-GJT
RDU-DRO
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-COS
RDU-GJT
RDU-DRO
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 $86). Flying from Raleigh to Colorado in June is currently the most expensive (average of $179). 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 April 10, 2026.
It’s optimal to fly from Raleigh to Colorado at noon. By choosing this option you can save up to 46% on the cost of your flight, compared to a flight in the morning.
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 April 4, 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.
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 April 10, 2026.
The most flights from RDU to USCO are scheduled on a Thursday (8 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?
Reviews of airlines servicing Colorado
Get insights into the airlines that provide service to Colorado. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Colorado. Reviews last updated April 10, 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.
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Entertainment
7.5
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 April 10, 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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$248 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$128 | Average$387 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$157 | Average$342 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$185 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$200 | Average$439 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$200 | Average$456 | FlexibilityNo cancel fee | On-time71% |