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Colorado

$94+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — DEN
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$157
(Booking.com)

One-way from

$94
(Frontier)

Popular in

December

Cheapest in

January

Average price

$303

Good round-trip deal

$239 or less

Good one-way deal

$143 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, 1% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 18, 2025.

This Booking.com deal was found by Cheapflights users on 8/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/37:00 pmRDU - DEN
1 stop30h 13mFrontier
Sun 9/76:10 amDEN - RDU
1 stop27h 16mFrontier
Deal found 8/18$157
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Fri 9/196:06 pmRDU - DEN
1 stop6h 47mFrontier
Sat 9/207:47 pmDEN - RDU
1 stop12h 11mFrontier
Deal found 8/18$158
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/277:03 pmRDU - DEN
1 stop15h 06mFrontier
Fri 10/31:12 pmDEN - RDU
1 stop7h 46mFrontier
Deal found 8/18$159
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/286:06 pmRDU - DEN
1 stop6h 47mFrontier
Wed 10/17:48 pmDEN - RDU
1 stop13h 43mFrontier
Deal found 8/18$160
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/265:23 pmRDU - DEN
Nonstop3h 55mFrontier
Fri 10/312:04 amDEN - RDU
1 stop7h 49mFrontier
Deal found 8/17$162
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/123:51 pmRDU - DEN
1 stop11h 00mFrontier
Thu 10/167:00 amDEN - RDU
1 stop11h 49mFrontier
Deal found 8/17$163
This Frontier deal was found by Cheapflights users on 8/17. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/131:05 pmRDU - DEN
1 stop13h 46mFrontier
Fri 10/176:00 amDEN - RDU
1 stop9h 47mFrontier
Deal found 8/17$164
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:48 amRDU - DEN
1 stop14h 54mFrontier
Mon 10/138:03 pmDEN - RDU
1 stop23h 03mFrontier
Deal found 8/17$165
This Frontier deal was found by Cheapflights users on 8/16. 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.
Fri 9/126:06 pmRDU - DEN
1 stop6h 47mFrontier
Sat 9/1312:04 amDEN - RDU
1 stop7h 49mFrontier
Deal found 8/16$166
This FlightHub deal was found by Cheapflights users on 8/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/172:27 pmRDU - DEN
1 stop20h 27mFrontier
Tue 10/211:40 pmDEN - RDU
1 stop23h 57mFrontier
Deal found 8/17$167
This Kiwi.com deal was found by Cheapflights users on 8/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:06 pmRDU - DEN
1 stop6h 47mFrontier
Thu 9/256:00 amDEN - RDU
1 stop6h 50mFrontier
Deal found 8/17$168
This Delta deal was found by Cheapflights users on 8/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:15 amRDU - GJT
2 stops9h 22mDelta
Tue 11/115:56 amGJT - RDU
2 stops9h 56mDelta
Deal found 8/16$299

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 August 18, 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

Thu 9/11

11:52 am-9:31 pm

1 stop11h 39m

Denver Intl

Sun 9/14

7:40 am-9:00 pm

1 stop11h 20m

$159

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 9/26

9:30 pm-8:49 am

1 stop13h 19m

Denver Intl

Thu 10/2

6:00 am-2:50 pm

1 stop6h 50m

$159

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 9/27

7:03 pm-8:09 am

1 stop15h 06m

Denver Intl

Thu 10/2

1:12 pm-10:50 pm

1 stop7h 38m

$159

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 9/26

6:06 pm-10:53 pm

1 stop6h 47m

Denver Intl

Wed 10/1

7:48 pm-11:31 am

1 stop13h 43m

$160

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 9/29

6:06 pm-10:53 pm

1 stop6h 47m

Denver Intl

Wed 10/1

7:48 pm-11:31 am

1 stop13h 43m

$160

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sun 9/28

6:06 pm-10:53 pm

1 stop6h 47m

Denver Intl

Wed 10/1

7:48 pm-11:31 am

1 stop13h 43m

$160

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 10/3

5:23 pm-7:18 pm

Nonstop3h 55m

Denver Intl

Tue 10/7

12:59 am-3:37 pm

1 stop12h 38m

$162

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sun 10/12

3:51 pm-12:51 am

1 stop11h 00m

Denver Intl

Thu 10/16

7:00 am-8:49 pm

1 stop11h 49m

$163

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 9/26

6:06 pm-10:53 pm

1 stop6h 47m

Denver Intl

Sat 10/4

12:04 am-9:53 am

1 stop7h 49m

$163

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 9/25

9:55 pm-8:36 am

1 stop12h 41m

Denver Intl

Mon 9/29

7:40 am-8:35 pm

1 stop10h 55m

$163

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

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, 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 August 18, 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.

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 August 18, 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
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,925 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,212 reviews
Southwest
8.0
Very good
4,246 reviews

Crew

8.6

Food

7.0

Overall

8.0

Boarding

8.1

Comfort

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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, 124 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 8h 04m. Fly via Frontier, Delta, or American Airlines to get the fastest option. The distance between Raleigh and Colorado is about 1604 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 $94. Users have also found prices from $195 and $208 on American Airlines 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 - Grand Junction Regnl.

  • 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 (88%), Southwest (58%), Frontier( 49%).

  • What are the cheapest flights from Raleigh to Colorado?

    The cheapest flight price from Raleigh to Colorado is $97. On average you can expect to pay $830. The most popular route, (Raleigh-Durham - Denver Intl), can usually be booked for $160.

  • 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.

See more FAQs

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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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$103Average$251FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$417FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$197Average$577FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$198Average$433FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$198Average$511FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$244Average$394FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$255Average$310FlexibilityNo cancel feeOn-time83%

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