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$109+ 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 7/18. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — DEN
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
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 julio 3, 2025.

Round-trip from

$186
(Frontier)

One-way from

$109
(Priceline)

Popular in

December

Cheapest in

September

Average price

$317

Good round-trip deal

$282 or less

Good one-way deal

$163 or less
From Raleigh-Durham to Colorado
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One-way flight from Raleigh-Durham to Colorado
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 3, 2025.

This Frontier deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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.
lun. 7/145:23 pmRDU - DEN
Nonstop3h 54mFrontier
mar. 7/156:00 amDEN - RDU
1 stop9h 56mFrontier
Deal found 7/1$186
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
mié. 9/248:40 amRDU - DEN
Nonstop3h 50mUnited Airlines
lun. 9/295:26 pmDEN - RDU
Nonstop3h 24mUnited Airlines
Deal found 7/2$197
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
mié. 9/246:40 amRDU - DEN
1 stop5h 15mSouthwest
mié. 10/111:50 amDEN - RDU
Nonstop3h 20mSouthwest
Deal found 7/3$207
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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.
jue. 8/217:22 pmRDU - DEN
1 stop6h 14mAmerican Airlines
jue. 8/283:54 pmDEN - RDU
1 stop6h 02mAmerican Airlines
Deal found 7/1$218
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
mar. 8/123:06 pmRDU - COS
1 stop7h 35mDelta
mar. 8/198:00 amCOS - RDU
1 stop7h 45mDelta
Deal found 7/2$257
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
jue. 8/215:25 amRDU - EGE
1 stop6h 25mAmerican Airlines
mar. 8/268:15 amEGE - RDU
1 stop6h 29mAmerican Airlines
Deal found 7/2$259
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
mar. 8/1210:20 amRDU - COS
2 stops8h 08mAmerican Airlines
mar. 8/1910:54 amCOS - RDU
2 stops7h 51mAmerican Airlines
Deal found 7/3$268
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” 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.
mié. 8/202:25 pmRDU - COS
2 stops9h 35mSouthwest
lun. 8/256:00 amCOS - RDU
2 stops8h 45mSouthwest
Deal found 7/1$278
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” 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.
vie. 8/155:16 pmRDU - ASE
1 stop6h 28mUnited Airlines
vie. 8/223:25 pmASE - RDU
1 stop5h 19mUnited Airlines
Deal found 7/3$289
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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.
vie. 8/155:25 amRDU - ASE
1 stop6h 22mAmerican Airlines
vie. 8/2212:03 pmASE - RDU
1 stop8h 02mAmerican Airlines
Deal found 6/30$290
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” 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.
jue. 8/286:30 amRDU - COS
1 stop6h 26mUnited Airlines
lun. 9/81:55 pmCOS - RDU
1 stop6h 49mUnited Airlines
Deal found 6/30$316
This American Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” 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.
sáb. 8/165:59 pmRDU - DRO
1 stop6h 31mAmerican Airlines
sáb. 8/238:12 amDRO - RDU
1 stop6h 32mAmerican Airlines
Deal found 7/2$339

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 julio 3, 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

lun. 7/14

5:23 pm-7:17 pm

Nonstop3h 54m

Denver Intl

mar. 7/15

6:00 am-5:56 pm

1 stop9h 56m

$186

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

mié. 9/24

8:40 am-10:30 am

Nonstop3h 50m

Denver Intl

lun. 9/29

5:26 pm-10:50 pm

Nonstop3h 24m

$197

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

mié. 9/24

6:40 am-9:55 am

1 stop5h 15m

Denver Intl

mié. 10/1

11:50 am-5:10 pm

Nonstop3h 20m

$207

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

jue. 8/21

5:33 pm-10:59 pm

1 stop7h 26m

Denver Intl

jue. 8/28

3:54 pm-11:56 pm

1 stop6h 02m

$218

RaleighColorado Springs

RDU - COS

RDUCOS

Raleigh-Durham

mar. 8/12

3:06 pm-8:41 pm

1 stop7h 35m

Colorado Springs

mar. 8/19

8:00 am-5:45 pm

1 stop7h 45m

$257

RaleighVail

RDU - EGE

RDUEGE

Raleigh-Durham

jue. 8/21

5:25 am-9:50 am

1 stop6h 25m

Vail Eagle County

mar. 8/26

8:15 am-4:44 pm

1 stop6h 29m

$259

RaleighColorado Springs

RDU - COS

RDUCOS

Raleigh-Durham

mar. 8/12

10:20 am-4:28 pm

2 stops8h 08m

Colorado Springs

mar. 8/19

10:54 am-8:45 pm

2 stops7h 51m

$268

RaleighColorado Springs

RDU - COS

RDUCOS

Raleigh-Durham

mié. 8/20

2:25 pm-10:00 pm

2 stops9h 35m

Colorado Springs

lun. 8/25

6:00 am-4:45 pm

2 stops8h 45m

$278

RaleighAspen

RDU - ASE

RDUASE

Raleigh-Durham

vie. 8/15

5:16 pm-9:44 pm

1 stop6h 28m

Aspen Pitkin County

vie. 8/22

3:25 pm-10:44 pm

1 stop5h 19m

$289

RaleighAspen

RDU - ASE

RDUASE

Raleigh-Durham

vie. 8/15

5:25 am-9:47 am

1 stop6h 22m

Aspen Pitkin County

vie. 8/22

12:03 pm-10:05 pm

1 stop8h 02m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 39 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, October is the cheapest month in which you can book a flight from Raleigh to Colorado (average of $197). Flying from Raleigh to Colorado in March is currently the most expensive (average of $278). 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 julio 3, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Raleigh to Colorado as you normally would.

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 julio 3, 2025.

The most flights from RDU to USCO are scheduled on a Thursday (7 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 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 julio 3, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,266 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,982 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Food

7.1

Comfort

7.8

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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, 132 users have taken a look at flights from Raleigh-Durham to Colorado.

  • 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 $109. Users have also found prices from $114 and $119 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 (90%), Southwest (50%), Frontier( 42%).

  • What are the cheapest flights from Raleigh to Colorado?

    The cheapest flight price from Raleigh to Colorado is $120. On average you can expect to pay $846. The most popular route, (Raleigh-Durham - Denver Intl), can usually be booked for $138.

  • 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, October is the cheapest month in which you can book a flight from Raleigh to Colorado (average of $197). Flying from Raleigh to Colorado in March is currently the most expensive (average of $278). 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$244FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$411FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$190Average$559FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$198Average$498FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$209Average$438FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$244Average$394FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$255Average$310FlexibilityNo cancel feeOn-time83%

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