Cheap Flights from Raleigh / Durham to Denver

Compare Raleigh / Durham to Denver flight deals

Find the cheapest month or even day of the year to fly to Denver

Book the best Denver fare with no extra fees

Flight deals from Raleigh / Durham to Denver

Looking for a cheap last-minute deal or the best round-trip flight from Raleigh / Durham to Denver? Find the lowest prices on one-way and round-trip tickets right here.

Find the cheapest month to fly from Raleigh / Durham to Denver

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Denver flights are currently cheapest in April.

Direct flights from Raleigh / Durham to Denver

Alternative Raleigh / Durham to Denver routes

Looking for the cheapest, fastest or easiest route from Raleigh / Durham to Denver? You could fly into the following airports instead.

Durham to Denver: Flight information

The things to know before you go.
Cheapest flight foundAED 268
Cheapest month to flyApril
Average flight time3 hrs, 58 mins
Most popular airlineSouthwest Airlines
Average flights per week84

Finding cheap flights from Raleigh / Durham to Denver: Frequently asked questions

There are 4 airports in Denver: Denver Arapahoe Co, Broomfield, Denver International, and Northern Colorado Regional.
The best price we found for a round-trip flight from Raleigh / Durham to Denver is AED 268. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 58 minutes is the average flight time from Raleigh / Durham to Denver.
Southwest Airlines, United and Frontier Airlines fly direct from Raleigh / Durham to Denver.
There are 84 flights per week flying from Raleigh / Durham to Denver, as of February 2026.
The cheapest month to fly from Raleigh / Durham to Denver is usually April.
If you're flying from Raleigh / Durham Airport, the cheapest airport near Denver is Denver International – which is 29.9 km away from the center of Denver. We've found flights to this airport from AED 268.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Denver on Saturday, April 18, 2026.
Yes – the average flight time is 3 hours and 58 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Denver but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Denver is around 40 days in advance, so don’t leave your flight to the last minute.
In February, the average temperature is usually around 0°C. July is typically the warmest month in Denver, when it usually averages around 31°C. You can expect the least rain in January. The coldest month is December, with temperatures averaging -6°C. The rainiest month is July.
Currently, Frontier Airlines offers the cheapest flight tickets to Denver.

Flying from Raleigh-Durham International Airport (RDU) to Denver: what you need to know

  • Book a direct flight from Raleigh-Durham International Airport to Denver and you'll be traveling for an average of 3 hours 25 minutes.

  • Raleigh-Durham International Airport is located in Durham. Based in the UTC-6 timezone, Denver is two hours behind Durham.

  • The busiest route is from Raleigh-Durham International Airport (RDU) to Denver International Airport (DEN). Choose from 26 weekly services between these two airports. If you'd like to get on your way as soon as possible, the earliest flight from RDU to DEN is the 05:05 Southwest Airlines service. If you'd rather fly out later on, the final departure is at 19:55 with Southwest Airlines.

  • To avoid rushing for your RDU to Denver flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours before international departures and an hour before domestic flights is the general travel rule.

  • Heading off during a peak time like public or school holidays? Expect longer lines at check-in and security. To give yourself peace of mind, arrive up to four hours before international flights and two hours ahead of domestic departures.

  • Direct Raleigh-Durham International Airport to Denver tickets are available for booking. Denver International Airport (DEN) is where you'll be touching down.

  • You'll find a good selection of carriers that offer direct flights from Raleigh-Durham International Airport to Denver, including:

  • The journey from central Durham to RDU takes around 1 hour 10 minutes by public transport. If you ride-share, drive or get a cab, you'll cover the 16 kilometers in 20 minutes or so, depending on traffic conditions.

  • Searching for a hotel close to RDU? If you're catching an early flight from Raleigh-Durham International Airport to Denver, these accommodation options will get you from your pillow to the plane in no time:

  • Raleigh-Durham International Airport earns top marks for on-time performance. 80.09% of flights that take off from RDU land on time.

How to find the cheapest flights from Raleigh-Durham International Airport (RDU) to Denver

  • AED 103 is the lowest price we've found for a one-way Raleigh-Durham International Airport to Denver flight. A round-trip flight ticket right now is AED 268. Depending on the availability when you book, these fares could change.

  • Book one month before flying. Pricing trends show that this is the ideal window for finding cheap flights from RDU to Denver.

  • The best month for picking up cheap Raleigh-Durham International Airport to Denver tickets is May. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the biggest savings.

  • Picking up a cheap flight from RDU to Denver is easy with Price Alerts. All you need to do is set up one of these automatic notifications and we'll notify you when there's a better deal.

  • Tailor your flights with filters. Select your ideal departure and arrival times, total journey duration and airlines. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best' flights from Raleigh-Durham International Airport to Denver.

Airports in Denver

Denver International Airport (DEN)

  • Denver International Airport (DEN) to the center of Denver takes about 35 minutes by car. The center is roughly 40 kilometers away.

  • If you're traveling on public transport, expect a journey time of about 1 hour 30 minutes.

  • After your flight from Raleigh-Durham International Airport to Denver has touched down, kick back at a hotel close by. Baymont by Wyndham Denver International Airport is a good option that's an easy drive from DEN.

  • Grab a Denver International Airport rental car and discover Denver and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are well-known companies to choose from here.

  • For the lowest price, reserve your vehicle from Denver International Airport about one week ahead of your flight from RDU to Denver.

  • DEN is located at 8500 Pena Boulevard.

Best time to go to Denver

  • Carefully consider your travel dates before securing your flight from Raleigh-Durham International Airport to Denver. The city comes alive during high season, but prices are generally higher and major attractions can get crowded. Go to Denver in low season if you like a more relaxed vibe.

  • Before locking in your Raleigh-Durham International Airport to Denver flight ticket, think about the kind of weather forecast you're hoping for. July is the warmest month in Denver, with temperatures ranging from 14ºC (57ºF) to 32ºC (90ºF).

  • Search for cheap tickets from RDU to Denver in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -9ºC (16ºF) and 7ºC (45ºF) on average.

More about Denver

Explore more of United States

  • Denver has plenty to offer, but there are so many other corners of United States just waiting to be explored. Around 105 kilometers south of Denver, a visit to Colorado Springs will keep you on the move. Start with attractions like US Northern Command (USNORTHCOM) / North American Aerospace Defense Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • If there's time to check out another major destination in United States, head for Pueblo, about 161 kilometers south of Denver. Pueblo Weisbrod Aircraft Museum, Rosemount Museum and Pueblo Zoo are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.