Cheap flight tickets from Raleigh / Durham to Denver International

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Flight deals from Raleigh / Durham to Denver International

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

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

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

Direct flights from Raleigh / Durham to Denver International

Raleigh / Durham to Denver International: Alternative routes

Compare routes from Raleigh / Durham to Denver below. You may find an airport to fly into that's cheaper, faster, or easier than Denver International.

Durham to Denver: Flight information

The things to know before you go.
Cheapest flight foundRM734
Cheapest month to flyJune
Average flight time3 hrs, 52 mins
Most popular airlineSouthwest Airlines
Average flights per week30

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

The best price we found for a return flight from Raleigh / Durham to Denver International is RM734. 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 51 minutes is the average flight time from Raleigh / Durham to Denver International.
Southwest Airlines, United and Frontier Airlines fly direct from Raleigh / Durham to Denver International.
As of May 2025, there are 30 flights per week flying from Raleigh / Durham to Denver International.
The cheapest month to fly from Raleigh / Durham to Denver International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Denver International Airport on Friday, 6 June 2025.
Yes – the average flight time is 3 hours and 51 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 International 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.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Denver International.

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

  • The average length of a direct flight from Raleigh-Durham International Airport to Denver International Airport is 3 hours 50 minutes.

  • Denver's timezone is UTC-6, which makes Denver two hours behind Durham.

  • Each week, there are 37 Raleigh-Durham International Airport to Denver International Airport flights. If you'd like to jet off as soon as possible, take the 05:00 Southwest Airlines flight. If you're eager to make the most of your day before you fly, the latest flight is at 20:10 with Southwest Airlines.

  • Your RDU to DEN flight won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • During popular months such as July, it's a good idea to get to the airport earlier. Arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during a high season in general.

  • With direct flights from Raleigh-Durham International Airport to Denver International Airport available through a range of airlines, getting to Denver (and then other destinations in United States) is a cinch. You can travel nonstop with:

  • Most travellers choose to travel with Frontier Airlines on this route.

  • United Airlines is a leader in on-time performance for RDU to DEN flights, with 87.5% of its services reaching their destination on schedule.

  • Consider adding a stopover when booking your ticket from Raleigh-Durham International Airport to Denver International Airport. Simply uncheck 'Direct flights only' to break up your journey, or maybe even explore a new city along the way. Check out these options between RDU and DEN:

    • Lambert-St. Louis International Airport

    • Nashville International Airport

    • Hartsfield-Jackson Atlanta International Airport

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

  • Currently, RM367 is the lowest price we've seen for a one-way Raleigh-Durham International Airport to Denver International Airport flight. The best price for a return plane ticket is RM734. Bear in mind that fares may change due to demand when booking.

  • To secure cheap tickets from RDU to DEN, reserve your journey six months before your departure.

  • The cheapest month for flights from Raleigh-Durham International Airport to Denver International Airport is May. Use the 'Whole month' tool to find the lowest prices if you have a flexible travel schedule.

  • Spend less time searching for cheap flights from RDU to DEN by creating a Price Alert. You'll get an email or notification through the app when a lower fare becomes available.

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

Handy information about Raleigh-Durham International Airport (RDU)

  • 80.09% of flights departing from Raleigh-Durham International Airport touch down at their destination according to schedule. With its strong on-time stats, disruptions are unlikely when setting off from RDU.

  • To reach Raleigh-Durham International Airport from central Durham, it'll take about 20 minutes by car. Of course, this depends on traffic. It's approximately 23 kilometres from the airport to the city centre.

  • Planning to catch public transport? You can expect a journey time of around 1 hour 10 minutes.

  • Get your trip off to a hassle-free start by staying near RDU. Whether you're catching an early flight from Raleigh-Durham International Airport to Denver International Airport or just don't want to be rushed, these hotels are perfect:

Arriving at Denver International Airport (DEN)

  • Get off your Raleigh-Durham International Airport to Denver International Airport flight and be snoozing in your hotel bed shortly after. If you're searching for a handy option that's not too far from DEN, unpack your bags at Baymont by Wyndham Denver International Airport.

  • Pick up a Denver International Airport rental car and explore Denver and beyond with your own wheels. Routes Car Rentals, Dollar and Budget are top outlets to choose from here.

  • Lock in the best rate by booking your vehicle from Denver International Airport about one week before your departure date.

Getting from Denver International Airport (DEN) to central Denver

  • DEN is located at 8500 Pena Boulevard.

  • From Denver International Airport, Denver is approximately 40 kilometres away. It takes around 35 minutes to reach the centre by car.

  • It'll take around 1 hour 30 minutes if you're travelling on public transport.

When to fly to Denver International Airport (DEN)

  • July is the busiest month for flights from Raleigh-Durham International Airport to Denver International Airport. To escape the crowds, head to Denver in April.

  • When booking your flight from Raleigh-Durham International Airport to Denver International Airport, consider the type of weather you enjoy. July is the warmest month in Denver, with temperatures ranging from 14ºC (57ºF) to 32ºC (90ºF).

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

Explore more of United States

  • Colorado Springs is just one of the many places in United States waiting to be discovered once you've seen the sights of Denver. Around 105 kilometres away to the south, its best attractions include US Northern Command (USNORTHCOM) / North American Aerospace Defence Command (NORAD) Headquarters, Cheyenne Mountain Air Force Station and National Strength and Conditioning Association (NSCA).

  • Aurora is another essential stop in United States and is around 13 kilometres east of Denver. No trip is complete without seeing Magellan's Travel Solutions and Gear, The Fairways at Lowry and Retired Enlisted Association Inc.

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