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$112+ 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 12/13. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — DEN
Dec 19 — Dec 261
Fri 12/19
Fri 12/26
1 adult, Economy
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Cheap flight deals from Raleigh to Colorado

Keep the following information in mind while searching for Raleigh to Colorado flight deals. Data was last updated November 19, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$144
(Frontier)

One-way from

$112
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$317

Good round-trip deal

$246 or less

Good one-way deal

$165 or less
Provider with most accurate pricing for Raleigh-Durham-Denver Intl flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Denver Intl flights.
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From Raleigh-Durham to Colorado
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One-way flight from Raleigh-Durham to Colorado
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Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Raleigh-Durham to Colorado.
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Price to beat on a one-way flight from Raleigh-Durham to Colorado.
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Find flight deals from Raleigh to Colorado

Cheapest flights from Raleigh to Colorado
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 November 19, 2025.

This Trip.com deal was found by Cheapflights users on 11/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:39 pmRDU - DEN
1 stop9h 44mFrontier
Sat 12/1311:00 pmDEN - RDU
1 stop17h 27mFrontier
Deal found 11/17$141
This Frontier deal was found by Cheapflights users on 11/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:26 pmRDU - DEN
Nonstop4h 14mFrontier
Thu 12/1112:11 pmDEN - RDU
Nonstop3h 20mFrontier
Deal found 11/19$144
This CheapOair deal was found by Cheapflights users on 11/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/28:14 pmRDU - DEN
1 stop28h 50mFrontier
Fri 12/56:00 amDEN - RDU
1 stop7h 45mFrontier
Deal found 11/18$145
This CheapOair deal was found by Cheapflights users on 11/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/48:37 pmRDU - DEN
1 stop21h 06mFrontier
Sun 12/711:59 pmDEN - RDU
1 stop6h 24mFrontier
Deal found 11/19$146
This Kiwi.com deal was found by Cheapflights users on 11/16. 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 12/213:47 pmRDU - DEN
1 stop9h 26mFrontier
Fri 12/2611:06 amDEN - RDU
1 stop6h 31mFrontier
Deal found 11/16$147
This Kiwi.com deal was found by Cheapflights users on 11/16. 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.
Wed 12/35:39 pmRDU - DEN
1 stop9h 44mFrontier
Sun 12/711:00 pmDEN - RDU
2 stops11h 00mFrontier
Deal found 11/16$148
This Kiwi.com deal was found by Cheapflights users on 11/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:06 pmRDU - DEN
1 stop15h 21mFrontier
Thu 12/119:05 pmDEN - RDU
1 stop10h 08mFrontier
Deal found 11/19$149
This CheapOair deal was found by Cheapflights users on 11/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:26 pmRDU - DEN
Nonstop4h 14mFrontier
Wed 12/109:00 pmDEN - RDU
1 stop19h 21mFrontier
Deal found 11/18$150
This Super.com deal was found by Cheapflights users on 11/19. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/38:14 pmRDU - DEN
1 stop28h 50mFrontier
Mon 12/811:59 pmDEN - RDU
1 stop7h 40mFrontier
Deal found 11/19$151
This CheapOair deal was found by Cheapflights users on 11/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:37 pmRDU - DEN
1 stop21h 06mFrontier
Fri 1/91:21 pmDEN - RDU
Nonstop3h 20mFrontier
Deal found 11/18$152
This Kiwi.com deal was found by Cheapflights users on 11/18. 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.
Wed 12/35:39 pmRDU - DEN
1 stop9h 44mFrontier
Tue 12/910:50 amDEN - RDU
2 stops27h 54mFrontier
Deal found 11/18$153
This Expedia deal was found by Cheapflights users on 11/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:26 pmRDU - DEN
Nonstop4h 14mFrontier
Thu 12/1112:59 amDEN - RDU
1 stop7h 17mFrontier
Deal found 11/17$154

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 November 19, 2025.
Use the filters below to find and compare flights from Raleigh to Colorado that are best for you.

Fly from

Raleigh

Fly to

Colorado

Route

Depart

Return

Price

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 1/23

5:30 am-10:08 am

1 stop6h 38m

Denver Intl

Sun 1/25

12:30 am-7:54 am

1 stop5h 24m

$237

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 1/24

5:30 am-10:08 am

1 stop6h 38m

Denver Intl

Sat 1/24

4:43 pm-12:15 am

1 stop5h 32m

$237

RaleighGrand Junction

RDU - GJT

RDUGJT

Raleigh-Durham

Thu 2/5

5:10 am-12:16 pm

1 stop9h 06m

Grand Junction Regnl

Mon 2/9

6:00 am-4:48 pm

1 stop8h 48m

$249

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 1/8

8:03 am-10:13 am

Nonstop4h 10m

Denver Intl

Thu 1/8

5:51 pm-11:15 pm

Nonstop3h 24m

$297

RaleighGrand Junction

RDU - GJT

RDUGJT

Raleigh-Durham

Tue 12/2

4:14 pm-8:25 pm

1 stop6h 11m

Grand Junction Regnl

Sat 12/6

3:15 pm-10:45 pm

1 stop5h 30m

$299

RaleighAspen

RDU - ASE

RDUASE

Raleigh-Durham

Tue 1/27

1:18 pm-7:04 pm

1 stop7h 46m

Aspen Pitkin County

Sat 1/31

12:54 pm-8:48 pm

1 stop5h 54m

$309

RaleighAspen

RDU - ASE

RDUASE

Raleigh-Durham

Thu 1/1

7:00 am-2:16 pm

1 stop9h 16m

Aspen Pitkin County

Wed 1/7

12:12 pm-11:34 pm

1 stop9h 22m

$309

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Wed 12/3

5:29 am-10:18 am

1 stop6h 49m

Denver Intl

Mon 12/8

12:50 am-8:57 am

1 stop6h 07m

$317

RaleighGrand Junction

RDU - GJT

RDUGJT

Raleigh-Durham

Sat 1/10

7:00 am-10:38 pm

2 stops17h 38m

Grand Junction Regnl

Wed 1/14

1:35 pm-11:48 pm

1 stop8h 13m

$321

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 1/10

6:00 am-10:31 am

1 stop6h 31m

Denver Intl

Mon 1/19

12:30 am-9:55 am

1 stop7h 25m

$324

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 60 results
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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.
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

What is the cheapest month to book a flight from Raleigh to Colorado?

Currently, February is the cheapest month in which you can book a flight from Raleigh to Colorado (average of $91). Flying from Raleigh to Colorado in July is currently the most expensive (average of $176). 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 November 19, 2025.

It’s optimal to fly from Raleigh to Colorado in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight in the afternoon.

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 December 16, 2024.

Travelers seeking maximum savings on their Raleigh to Colorado flight should consider departing on Friday at noon when fares are most often at their lowest. Saturday evenings 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 November 19, 2025.

The most flights from RDU to USCO are scheduled on a Monday (5 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 on average).

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 November 19, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,249 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,004 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,025 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,046 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,106 reviews
Southwest
8.0
Very good
4,249 reviews

Overall

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • What airport do you fly from for flights from Raleigh to Colorado?

    Raleigh-Durham (RDU), located 11.1 mi from the city center, is the airport you fly out of when you book flights from Raleigh to Colorado.

  • How popular is this Raleigh to Colorado flight route?

    Within the past month, 117 users have taken a look at flights from Raleigh-Durham to Colorado.

  • How long is the flight from Raleigh to Colorado?

    There are many flights that can get you from Raleigh to Colorado in 4h 10m. Fly via Delta, American Airlines, or United Airlines to get the fastest option. The distance between Raleigh and Colorado is about 1432 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Raleigh to Colorado one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $119. Users have also found prices from $206 and $218 on Southwest and United Airlines, respectively.

  • What are the most popular routes from Raleigh to Colorado?

    The most popular flight routes from Raleigh to Colorado are Raleigh-Durham - Denver Intl, Raleigh-Durham - Colorado Springs and Raleigh-Durham - Vail Eagle County.

  • What are the most reliable airlines from Raleigh to Colorado?

    Before booking your flight to Colorado from Raleigh, check out the most reliable airlines to get you to your destination on time: United Airlines (91%), Frontier (76%), Southwest( 72%).

  • What are the cheapest flights from Raleigh to Colorado?

    The cheapest flight price from Raleigh to Colorado is $101. On average you can expect to pay $1,017. The most popular route, (Raleigh-Durham - Denver Intl), can usually be booked for $113.

  • Can I find deals for flights from Raleigh to Colorado that include hotel bookings?

    Yes. In addition to deals on Raleigh to Colorado flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Raleigh to Colorado?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to Colorado.

  • Can I find deals for business class flights from Raleigh to Colorado?

    Yes. Cheapflights offers flight deals from Raleigh to Colorado by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Raleigh to Colorado?

    Currently, February is the cheapest month in which you can book a flight from Raleigh to Colorado (average of $91). Flying from Raleigh to Colorado in July is currently the most expensive (average of $176). 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.

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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.
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Top 7 airlines flying from Raleigh to Colorado

Discover the top 7 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 November 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$252FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$421FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$200Average$540FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$201Average$565FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$205Average$440FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$244Average$394FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$255Average$310FlexibilityNo cancel feeOn-time83%

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