$64 Cheap Flights from Raleigh (RDU) to Denver (DEN)

View $64 flight on Sat, May 24, 2025Opens in a new window

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

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Find available prices by choosing your travel dates.

Cheap Flights from Raleigh to Denver (RDU-DEN)

Prices were available within the past 7 days and start at $64 for one-way flights and $173 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, May 24 - Tue, Jun 3
RDU
Raleigh
DEN
Denver
$173 Roundtrip, found 2 hours ago
$173
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, May 24 from Raleigh to Denver, returning Tue, Jun 3, priced at $173 found 2 hours ago
Frontier Airlines
Sat, Jul 12 - Wed, Jul 16
RDU
Raleigh
DEN
Denver
$183 Roundtrip, found 1 hour ago
$183
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Raleigh to Denver, returning Wed, Jul 16, priced at $183 found 1 hour ago
Frontier Airlines
Sat, May 24 - Sat, May 31
RDU
Raleigh
DEN
Denver
$185 Roundtrip, just found
$185
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, May 24 from Raleigh to Denver, returning Sat, May 31, priced at $185 just found
Frontier Airlines
Sat, Jul 12 - Mon, Jul 14
RDU
Raleigh
DEN
Denver
$188 Roundtrip, found 6 hours ago
$188
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Jul 12 from Raleigh to Denver, returning Mon, Jul 14, priced at $188 found 6 hours ago
Frontier Airlines
Sat, May 24 - Mon, Jun 2
RDU
Raleigh
DEN
Denver
$193 Roundtrip, found 4 hours ago
$193
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, May 24 from Raleigh to Denver, returning Mon, Jun 2, priced at $193 found 4 hours ago
Frontier Airlines
Sat, Jul 19 - Tue, Jul 29
RDU
Raleigh
DEN
Denver
$195 Roundtrip, found 2 hours ago
$195
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Sat, Jul 19 from Raleigh to Denver, returning Tue, Jul 29, priced at $195 found 2 hours ago
American Airlines
Sat, Jun 14 - Tue, Jun 24
RDU
Raleigh
DEN
Denver
$205 Roundtrip, found 2 hours ago
$205
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Jun 14 from Raleigh to Denver, returning Tue, Jun 24, priced at $205 found 2 hours ago
United
Sat, Jun 7 - Sat, Jun 14
RDU
Raleigh
DEN
Denver
$217 Roundtrip, just found
$217
Roundtrip
just found
Select United flight, departing Sat, Jun 7 from Raleigh to Denver, returning Sat, Jun 14, priced at $217 just found
Southwest Airlines
Sat, Jun 7 - Tue, Jun 17
RDU
Raleigh
DEN
Denver
$217 Roundtrip, found 2 hours ago
$217
Roundtrip
found 2 hours ago
Select Southwest Airlines flight, departing Sat, Jun 7 from Raleigh to Denver, returning Tue, Jun 17, priced at $217 found 2 hours ago
Sun Country Airlines
Fri, Nov 14 - Sun, Nov 16
RDU
Raleigh
DEN
Denver
$223 Roundtrip, found 3 days ago
$223
Roundtrip
found 3 days ago
Select Sun Country Airlines flight, departing Fri, Nov 14 from Raleigh to Denver, returning Sun, Nov 16, priced at $223 found 3 days ago
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
$172
Distance
1433 mi

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 May. 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 $64 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 long does it take to fly from Raleigh - Durham Intl. Airport (RDU) to Denver Airport?
Purchase a ticket with United Airlines and you can expect to be airborne for around 3 hours and 52 minutes. This reputable carrier operates a direct flight that takes off at 8:20AM from Raleigh - Durham Intl. Airport (RDU) and arrives at DEN at 10:12AM. Expedia has some amazing flight deals, so take a peek at what’s on offer on this route today.
Is it cheaper to buy a plane ticket from Raleigh--Durham Airport to Denver Intl. Airport (DEN) last minute?
Booking your journey from Raleigh–Durham Airport to DIA airport last minute could save you cash if you’re lucky to find a real bargain. However, tickets don’t usually get cheaper as the date of departure nears. If you choose to wait, flights could also be booked up or the best seats taken (we hope you like the middle seat!). If you’d rather err on the side of caution, book well ahead of the date you want to leave. Keep in mind that some of the best deals can be found up to a year in advance. If your favorite airline hasn’t released its airfares yet, check back regularly as offers are updated on Expedia constantly.
What airports do you fly into for Denver from Raleigh?
From Raleigh, you can get to Denver via Denver Intl. Airport (DEN), Centennial Airport (APA) and Broomfield, CO (BJC-Rocky Mountain Metropolitan). Find out which airport works best for you before you make a decision. If you settle on Denver Intl. Airport (DEN), it’s about 19 mi east of downtown. Use the cash you save when booking your trip with Expedia to explore the city’s popular attractions, such as Empower Field at Mile High and Coors Field.
What are the most popular departure times for flights from Raleigh - Durham Intl. Airport (RDU) to DEN?
Between 8:00 AM - 9:00 AM is the busiest time for United Airlines flights jetting off from Raleigh–Durham Airport to DEN. Our top tip? Leave in the morning. With air traffic yet to build up around airports, your chances of boarding a delay-free flight are higher.
Can I change the date of my flight from RDU to Denver Intl. Airport (DEN)?
You can quickly and easily make changes to your Raleigh - Durham Intl. Airport (RDU) to DIA airport ticket through the Expedia Trips portal. But before you begin, check the rules and conditions in your itinerary to see what the carrier will let you do and if fees apply for changes. Some carriers have a change fee per person, plus any difference in fare prices. However, if you booked in the last 24 hours, you may be able to cancel for free and organize new flights. You can also browse our Customer Service portal for further details and to connect with our Virtual Agent.

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*Available to One Key members.