Denver

$109+ Cheap flights from Raleigh to Denver (RDU - DEN)

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
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Cheapflights Tip: The best prices from Raleigh-Durham to Denver Intl are usually found in September or October, booked 63 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Raleigh to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 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 Denver Intl
One-way flight from Raleigh-Durham to Denver Intl
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in July 2025
Price to beat on a round-trip flight from Raleigh-Durham to Denver Intl.
Price to beat on a one-way flight from Raleigh-Durham to Denver Intl.

Find flight deals from Raleigh to Denver

Cheapest flights from Raleigh to Denver
Explore the most affordable flight options available from Raleigh to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 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.
Mon 7/145:23 pmRDU - DEN
Nonstop3h 54mFrontier
Tue 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.
Wed 9/248:40 amRDU - DEN
Nonstop3h 50mUnited Airlines
Mon 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.
Wed 9/246:40 amRDU - DEN
1 stop5h 15mSouthwest
Wed 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.
Thu 8/217:22 pmRDU - DEN
1 stop6h 14mAmerican Airlines
Thu 8/283:54 pmDEN - RDU
1 stop6h 02mAmerican Airlines
Deal found 7/1$218

Cheapflights Fare Finder

Customize your flight search to find flights from Raleigh to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Raleigh to Denver that are best for you.

Fly from

Raleigh

Fly to

Denver

Route

Depart

Return

Price

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 7/14

5:23 pm-7:17 pm

Nonstop3h 54m

Denver Intl

Tue 7/15

6:00 am-5:56 pm

1 stop9h 56m

$186

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Wed 9/24

8:40 am-10:30 am

Nonstop3h 50m

Denver Intl

Mon 9/29

5:26 pm-10:50 pm

Nonstop3h 24m

$197

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Wed 9/24

6:40 am-9:55 am

1 stop5h 15m

Denver Intl

Wed 10/1

11:50 am-5:10 pm

Nonstop3h 20m

$207

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Thu 8/21

5:33 pm-10:59 pm

1 stop7h 26m

Denver Intl

Thu 8/28

3:54 pm-11:56 pm

1 stop6h 02m

$218

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 7/18

5:23 pm-7:17 pm

Nonstop3h 54m

$109

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Tue 11/25

11:39 am-6:13 pm

1 stop8h 34m

$113

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Mon 8/11

3:00 pm-8:45 pm

2 stops7h 45m

$114

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Fri 11/7

4:28 pm-10:09 pm

1 stop7h 41m

$118

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 10/4

12:19 pm-5:13 pm

1 stop6h 54m

$119

RaleighDenver

RDU - DEN

RDUDEN

Raleigh-Durham

Sat 10/4

4:30 pm-6:20 pm

Nonstop3h 50m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 11 results
1
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The best insider tips for Raleigh to Denver flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Denver trip
Airlines
Frontier

Frontier's UpFront Plus offers a guaranteed empty middle seat for added comfort.


Early check-in can help secure your place onboard due to frequent overbooking.

Read more about Frontierby Marisa Garcia
United Airlines

United's Economy Plus offers extra legroom towards the front of the economy cabin.


United's MileagePlus allows pooling miles for family or friends' tickets.

Airports
RDU

RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.

Read more about RDUby John Walton
DEN

Take the A Line train from DEN to Union Station for a quick 37-minute ride into downtown Denver, running every 15 minutes.

Read more about DENby Emily Zemler
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
John Walton

John Walton

Expert on RDU

John Walton

John Walton

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Emily Zemler

Emily Zemler

Expert on DEN

Emily Zemler

Emily Zemler

Emily is a freelance writer and book author based in London covering entertainment and travel. Her work has appeared in Los Angeles Times, Observer, and Conde Nast Traveler She has ventured to more than 40 countries and all seven continents, always in search of a great art museum. She has written extensively about hotels, luxury travel, and aviation.

Read more

Best time to book a flight from Raleigh to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver 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 Denver

How far ahead should I book a flight from Raleigh to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Denver. Price data was last updated on June 27, 2025.

To ensure you get the cheapest price possible for a flight from Raleigh to Denver, you should look to book at least 63 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, October is the cheapest month in which you can book a flight from Raleigh to Denver (average of $197). Flying from Raleigh to Denver 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 DEN?

Find hourly flight availability from Raleigh to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 40% on flights from Raleigh to Denver by exploring options for tickets at noon.

What is the cheapest day to fly from Raleigh to Denver?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Denver. Price data was last updated on June 29, 2025.

Travelers seeking maximum savings on their Raleigh to Denver 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 Denver

Explore weekly flight availability from Raleigh to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

The most flights from RDU to DEN 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 Denver

Get insights into the airlines that provide service to Denver. 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 Denver. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, United Airlines, and American Airlines from Raleigh to Denver. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.0

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Raleigh to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What airports do I use to fly from Raleigh to Denver?

    If you book a flight from Raleigh to Denver, you will be flying from Raleigh-Durham to Denver Intl. Flights to Denver Intl (DEN) from Raleigh-Durham (RDU) take 3h 40m for a nonstop flight. There are 4 flights from Raleigh-Durham to Denver per day from 7 airlines.

  • How popular is this Raleigh to Denver flight route?

  • What are the cheapest airlines flying from Raleigh to Denver round-trip?

    Our cheapest airline available from Raleigh to Denver is Frontier. Our recent data shows that you can find tickets from as low as $186 on this airline. Additional options worth looking into are United Airlines and Southwest, starting at $197 and $207 round-trip. Frontier is priced at 39% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $109. Southwest flights start at $114 while deals on United Airlines start at $119 one-way.

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

    No one likes to see their flight delayed. When booking a flight from Raleigh to Denver consider choosing United Airlines (90%), Southwest (50%) or Frontier (42%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Raleigh to Denver?

    On average you can expect to pay $846 for a flight from Raleigh to Denver. The cheapest flight overall is $120 while the most popular route, (Raleigh-Durham - Denver Intl) is currently priced at $138.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Raleigh to Denver 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 Denver?

    Currently, October is the cheapest month in which you can book a flight from Raleigh to Denver (average of $197). Flying from Raleigh to Denver 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

Traveling to a place near Raleigh?

Book flights to Raleigh if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Golden
Brighton
Silverthorne
Thornton
Frisco
Broomfield
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Idaho Springs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Raleigh to Denver

See prices for flight routes from nearby airports that may be better suited for you.

Top 7 airlines flying from Raleigh to Denver

Discover the top 7 airlines that operate flights from Raleigh to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$244FlexibilityNo cancel feeOn-time62%
DeltaCheapest$138Average$308FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$190Average$404FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$198Average$308FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$209Average$371FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$244Average$394FlexibilityNo cancel feeOn-time62%
Sun Country AirCheapest$255Average$310FlexibilityNo cancel feeOn-time83%

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