$74 Cheap Flights from Raleigh (RDU) to Denver (DEN)

View $74 flight on Mon, Sep 29, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Denver Intl. Airport (DEN)

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Cheap Flights from Raleigh to Denver (RDU-DEN)

Prices were available within the past 7 days and start at $74 for one-way flights and $110 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Nov 13 - Fri, Nov 14
RDU
Raleigh
DEN
Denver
$110 Roundtrip, found 8 hours ago
$110
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Raleigh to Denver, returning Fri, Nov 14, priced at $110 found 8 hours ago
Frontier Airlines
Fri, Sep 5 - Fri, Sep 12
RDU
Raleigh
DEN
Denver
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Sep 5 from Raleigh to Denver, returning Fri, Sep 12, priced at $112 just found
Frontier Airlines
Fri, Nov 7 - Thu, Nov 13
RDU
Raleigh
DEN
Denver
$120 Roundtrip, found 4 hours ago
$120
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Fri, Nov 7 from Raleigh to Denver, returning Thu, Nov 13, priced at $120 found 4 hours ago
Frontier Airlines
Fri, Sep 5 - Fri, Sep 19
RDU
Raleigh
DEN
Denver
$128 Roundtrip, found 1 day ago
$128
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Raleigh to Denver, returning Fri, Sep 19, priced at $128 found 1 day ago
Frontier Airlines
Mon, Sep 8 - Fri, Sep 12
RDU
Raleigh
DEN
Denver
$136 Roundtrip, found 1 hour ago
$136
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Mon, Sep 8 from Raleigh to Denver, returning Fri, Sep 12, priced at $136 found 1 hour ago
Frontier Airlines
Thu, Nov 13 - Sat, Nov 15
RDU
Raleigh
DEN
Denver
$140 Roundtrip, just found
$140
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Nov 13 from Raleigh to Denver, returning Sat, Nov 15, priced at $140 just found
Southwest Airlines
Sat, Dec 6 - Sat, Dec 13
RDU
Raleigh
DEN
Denver
$177 Roundtrip, found 6 days ago
$177
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Sat, Dec 6 from Raleigh to Denver, returning Sat, Dec 13, priced at $177 found 6 days ago
United
Sat, Dec 6 - Sat, Dec 13
RDU
Raleigh
DEN
Denver
$177 Roundtrip, found 6 days ago
$177
Roundtrip
found 6 days ago
Select United flight, departing Sat, Dec 6 from Raleigh to Denver, returning Sat, Dec 13, priced at $177 found 6 days ago
American Airlines
Sat, Dec 6 - Sat, Dec 13
RDU
Raleigh
DEN
Denver
$197 Roundtrip, found 6 days ago
$197
Roundtrip
found 6 days ago
Select American Airlines flight, departing Sat, Dec 6 from Raleigh to Denver, returning Sat, Dec 13, priced at $197 found 6 days ago
Delta
Thu, Nov 13 - Fri, Nov 14
RDU
Raleigh
DEN
Denver
$231 Roundtrip, found 8 hours ago
$231
Roundtrip
found 8 hours ago
Select Delta flight, departing Thu, Nov 13 from Raleigh to Denver, returning Fri, Nov 14, priced at $231 found 8 hours ago

Find the cheapest month to fly from Raleigh (RDU) to Denver (DEN)

October is typically the cheapest month to fly

From $98 - $187 per traveler.

Graph displaying average flight prices per month

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $307
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $307
Flights from Raleigh (RDU) to Denver (DEN)
Origin airport
Raleigh - Durham Intl.
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$110
Distance
1433 mi
Average flight time
2 hours 51 mins

Raleigh to Denver Flights

The cheapest times to fly from Raleigh to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Raleigh to Denver are during the month of November. You can find some of the cheapest flights from Raleigh to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to Denver

Sunday is one of the best days to book for cheap flights from Raleigh to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Raleigh to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Raleigh to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $74 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Raleigh to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Raleigh to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN) cost?
Lock in a cheap one-way flight from $74 or cheap return flight from $110 from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
The cheapest month to fly from RDU to DEN is November, when demand is low. Off-peak months are often when you'll find lower airfares between these airports.
Which airlines fly direct from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
Avoid the layovers and travel nonstop to Denver Intl. Airport (DEN) from Raleigh - Durham Intl. Airport (RDU) with 3 carriers, including:

  • United Airlines
  • Southwest Airlines
  • Frontier Airlines

What is the cheapest airline that flies from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
The cheapest airline to offer flights between Raleigh - Durham Intl. Airport (RDU) and Denver Intl. Airport (DEN) can vary based on when you plan to fly. Frontier Airlines and Southwest Airlines are just some of your options offering competitive fares. Use Expedia's filters to compare airlines in one place and find the right RDU to DEN flight for your budget.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
Daily, an average of 4 direct flights take off from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN). Choose the departure time that best fits your schedule.
What are the most popular departure times for flights from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
Flights between RDU and DEN tend to be busiest at 4 PM. For a more relaxed experience and potentially cheaper tickets, look for a time outside the usual busy windows.
What day of the week has the most flights from RDU to DEN?
Fly on a Thursday if you're searching for the best choice of flights from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN).
What is the earliest flight from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
The first flight of the day jetting off from Raleigh - Durham Intl. Airport (RDU) is at around 5:35AM UTC-5. Hop on this flight and you'll reach Denver Intl. Airport (DEN) at approximately 7:40AM UTC-7. The entire trip takes 4h 5m.
How long does it take to fly from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
It takes roughly 4 hours and 8 minutes to travel the 1,450 mi from RDU to DEN.
What airline has the least delays from RDU to DEN?
United Airlines has the best performance for on-time direct flights from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN), with an on-time score of 84%. Use the Expedia App to check your flight schedule before you take off and receive notifications about any changes.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
To avoid potential delays on the Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN) route, fly before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Raleigh - Durham Intl. Airport (RDU)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from Raleigh - Durham Intl. Airport (RDU). Browse the options and discover affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN) last-minute?
Waiting until just before your departure to book a flight from RDU to DEN often results in higher prices. While you might find some last-minute deals, there's no guarantee. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a RDU to DEN flight and hotel package?
You'll generally save money by securing a RDU to DEN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal accommodations and flights, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Denver Intl. Airport (DEN)?
Usually, it's possible to reschedule or cancel your RDU to DEN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find further details on our Customer Service portal.

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