RDU - DEN

$118 Find Cheap Flights from Raleigh to Denver - Compare and Save

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Everything you should know

Cheapest round-trip
$230
Typical prices: $244-$496
Frontier
Tue 10/2Fri 10/5
RDU - DEN • 1 stop
Cheapest non-stop
$233
Typical prices: $255-$505
Frontier
Sun 9/23Fri 9/28
RDU - DEN • Non-stop
Nonstop flights
You can fly direct with United Airlines, Southwest and Frontier. Average duration is 3h 53m
Direct flights
+1
Direct flights
+1
Avoid delays
Most punctual • 91% on-time
Best time • Fewest delays
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 8 weeks in advance save around 43% compared to booking last minute.
Insights
Insights
When to travel
Cheapest • 29% price drop
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Cheapest • Avg $226 (round-trip)
Shortest trip • 5h 13m (one-way)
Insights
Insights
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We hope you love your trip to Denver!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Raleigh to Denver (RDU-DEN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Raleigh to Denver

Thu, Oct 15 - Sun, Oct 18
Frontier Logo
4:48 pm - 10:11 pmRDU  Raleigh-Durham-DEN Denver Intl
7h 23m1 stop Tampa
Frontier Logo
6:57 pm - 12:21 pmDEN  Denver Intl-RDU Raleigh-Durham
15h 24m1 stop Atlanta Hartsfield-Jackson
$230Frontier
Fri, Oct 2 - Mon, Oct 5
Frontier Logo
9:35 pm - 3:37 pmRDU  Raleigh-Durham-DEN Denver Intl
20h 02m1 stop Orlando
Frontier Logo
11:46 am - 5:22 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 36mnonstop
$230Frontier
Wed, Oct 14 - Mon, Oct 19
Multiple Airlines Logo
9:47 pm - 9:49 pmRDU  Raleigh-Durham-DEN Denver Intl
26h 02m3 stops Orlando Atlanta Hartsfield-Jackson Dallas/Fort Worth
Multiple Airlines Logo
1:18 pm - 6:42 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 24mnonstop
$232Multiple Airlines
Fri, Sep 25 - Thu, Oct 1
Multiple Airlines Logo
9:01 pm - 9:24 pmRDU  Raleigh-Durham-DEN Denver Intl
26h 23m2 stops Tampa Atlanta Hartsfield-Jackson
Multiple Airlines Logo
7:12 pm - 9:18 amDEN  Denver Intl-RDU Raleigh-Durham
12h 06m1 stop Orlando
$232Multiple Airlines
Thu, Sep 10 - Tue, Sep 15
United Airlines Logo
8:15 am - 10:05 amRDU  Raleigh-Durham-DEN Denver Intl
3h 50mnonstop
United Airlines Logo
5:55 pm - 11:26 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 31mnonstop
$237United Airlines
Wed, Sep 9 - Mon, Sep 14
United Airlines Logo
4:23 pm - 6:20 pmRDU  Raleigh-Durham-DEN Denver Intl
3h 57mnonstop
United Airlines Logo
5:55 pm - 11:26 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 31mnonstop
$237United Airlines
Tue, Oct 13 - Wed, Oct 14
Southwest Logo
6:10 am - 8:00 amRDU  Raleigh-Durham-DEN Denver Intl
3h 50mnonstop
Southwest Logo
6:00 pm - 11:15 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 15mnonstop
$237Southwest
Tue, Oct 13 - Tue, Oct 27
Southwest Logo
6:10 am - 8:00 amRDU  Raleigh-Durham-DEN Denver Intl
3h 50mnonstop
Southwest Logo
6:00 pm - 11:15 pmDEN  Denver Intl-RDU Raleigh-Durham
3h 15mnonstop
$237Southwest
Thu, Nov 26 - Tue, Dec 1
Delta Logo
6:00 am - 12:11 pmRDU  Raleigh-Durham-DEN Denver Intl
8h 11m1 stop Minneapolis St Paul
Delta Logo
6:00 am - 1:55 pmDEN  Denver Intl-RDU Raleigh-Durham
5h 55m1 stop Atlanta Hartsfield-Jackson
$257Delta
Thu, Dec 24 - Tue, Jan 19
Delta Logo
11:08 am - 5:22 pmRDU  Raleigh-Durham-DEN Denver Intl
8h 14m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:45 am - 4:34 pmDEN  Denver Intl-RDU Raleigh-Durham
7h 49m1 stop Detroit Metropolitan Wayne County
$257Delta
Booking Insights

Price, demand and travel trends for Raleigh to Denver flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Raleigh to Denver with more confidence.

How much is a round-trip flight from Raleigh to Denver?

Round-trip flights from Raleigh to Denver start at $230. Prices are below average for this route right now, with typical round-trip fares ranging from $244 to $496. The lowest price found in the past 5 days was $230 on Frontier.

What's the cheapest day of the week to fly from Raleigh to Denver?

Thursday is the cheapest day of the week to fly from Raleigh to Denver, it is 6% cheaper than the average day. Sunday is the most expensive day with flight prices 20% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • January is the cheapest month to fly from Raleigh to Denver at $253 round-trip.
  • July ($484) and June ($483) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 91% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Raleigh to Denver the cheapest?

Flights from Raleigh to Denver are cheapest 8 weeks before departure. Booking in this window typically costs about 43% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Expert advice

Expert advice for your flight from Raleigh to Denver

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier and United Airlines

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Blane Bachelor

Blane Bachelor

Expert on Southwest

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Jessica Macdonald

Jessica Macdonald

Expert on RDU

Currently based in Scotland after living in South Africa and the United States, Jessica has been writing travel and aviation content for more than 10 years. She regularly contributes to Travel + Leisure and TripSavvy, and has had work published by Condé Nast Traveller and The Independent. She has traveled to more than 50 countries across six continents.

Harriet Baskas

Harriet Baskas

Expert on DEN

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.

Key details for Raleigh to Denver flights

Low season

October

Cheapest flight

$118
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Raleigh to Denver

When to book flights from Raleigh to Denver

Are your dates flexible? Find out the best times to travel from Raleigh to Denver based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Raleigh to Denver flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Does Denver International Airport have an airport hotel?

    Yes. Book your stay at the Westin Hotel at Denver International Airport if you wish to stay at the airport. The establishment is a short walk from the main terminal, and you can get to it by taking the escalator to level 1 at the Transit Center. The establishment has 519 rooms and offers both day rooms and overnight stays. They also have a conference center, making it ideal for business travelers.

  • Does Denver International Airport offer accessible services?

    DEN is a fully accessible airport. The airport has provided elevators and ramps for access to higher levels. Passengers in wheelchairs also get wheelchair assistance at the airport, accessible restrooms, and reserved parking spots. All elevators at DEN have braille-coded buttons for low-vision passengers. The airport also has tactile guide paths, audio announcements, and Aira services. TTY telephones, a video relay service, and visual paging are available for hard-of-hearing passengers.

  • What are the transport options from Denver International Airport?

    The train is a great option for getting downtown, and you can catch train routes AT, 145X, 169L, AA, and AB from the Denver Airport Station. Trains depart every 15min. There are also pre-booked inter-city buses at the DEN bus stop traveling to other cities in Colorado. Taxis are also available curbside, offering a flat rate to the Denver metro area. If you’re headed for the mountains, pre-book a mountain carrier, and they can pick you up from the DEN bus stop. Rental cars are also available from the ground transportation area, and Alamo, Budget, Hertz, Avis, and Thrift have counters here.

  • What are the most eco-friendly airlines flying from Raleigh to Denver?

    Around 795 kg of carbon is emitted per passenger on flights from Raleigh to Denver. However, you can fly more sustainably with Frontier Airlines, Southwest Airlines, and United Airlines. These airlines have flights from Raleigh to Denver that emit 56%, 44%, and 44% less carbon per passenger. They each also offer nonstop flights from RDU to DEN.

  • Which airlines offer extra legroom and free seat selection on Raleigh to Denver flights?

    Among airlines operating Raleigh to Denver flights:

    • Frontier: offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Southwest: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • What airlines are available from Raleigh to Denver?

    3 airlines operate flights between Raleigh and Denver. The airlines offering nonstop flights on this route include:
    • United Airlines
    • Southwest
    • Frontier

  • Which airports can I use when flying from Raleigh to Denver?

    Flights from Raleigh to Denver usually depart from Raleigh-Durham (RDU) and arrive at Denver Intl (DEN).

  • Which airlines include bags at no extra cost on Raleigh to Denver flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • Frontier: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Southwest: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Raleigh to Denver?

    Four cabin classes are available on flights from Raleigh to Denver:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How much can I save by taking a layover when flying from Raleigh to Denver?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $226 round-trip via Baltimore/Washington (BWI), compared to $369 for nonstop.

  • What is the standard checked-bag allowance on flights from Raleigh to Denver?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $27–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Raleigh to Denver?

    The Boeing 737 MAX 8 family is used most often on this route, operated mainly by Southwest and United Airlines. Other aircraft seen on the route include Boeing 737-900 variants.

  • Which airports do connecting flights from Raleigh to Denver pass through?

    One-stop flights from Raleigh to Denver most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 33% of one-stop connections
    • Charlotte Douglas (CLT) - 31% of one-stop connections
    • Minneapolis St Paul (MSP) - 6% of one-stop connections
    • Dallas/Fort Worth (DFW) - 5% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Raleigh to Denver?

    Yes. Being flexible with your travel dates can save you up to 22% on the Raleigh to Denver route. Thursday is the cheapest departure day at $333 round-trip on average, while Sunday is the most expensive at $426, a difference of $93. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • At what point is a flight considered delayed from Raleigh to Denver?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Raleigh to Denver route, 14% of flights were delayed in the past 3 months, with delays averaging 2 hours 29 minutes.

  • How are flight departures from Raleigh to Denver spread across the day?

    Morning is the busiest departure period on Raleigh to Denver flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

  • What popular places can I visit in Denver?

    Some of the most popular sights in Denver are Colorado Convention Center, Union Station Denver and Coors Field. These are among the most viewed places in Denver on KAYAK.

  • How long is a flight from Raleigh to Denver?

    A nonstop flight from Raleigh to Denver takes 3h 53m, covering 1,432 miles.

  • What are the earliest and latest flights from Raleigh to Denver?

    These are the earliest and latest flight times available from Raleigh to Denver:

    • Earliest: departs at 5:25 am and lands at 9:18 am
    • Latest: departs at 7:54 pm and lands at 11:47 pm.

    The flight takes about 3h 53m.

  • How expensive are last-minute Raleigh to Denver flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 32% above the route average of $354. Book 8 weeks before departure for the lowest fares.

  • Do I need a passport to fly from Raleigh to Denver?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Raleigh to Denver changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $230 to $2,033. That means the highest observed fare was about 9x higher than the lowest one.

  • How are flight prices from Raleigh to Denver looking right now?

    One-way fares from Raleigh to Denver are currently lower than usual. Average one-way flight prices are about $124, which is 41% below the typical average for this route.

  • How does United Airlines’s on-time performance compare to other airlines on Raleigh to Denver flights?

    United Airlines is slightly above the route average for timely arrivals, while Frontier has a lower on-time arrival rate. On-time arrival rates on Raleigh to Denver flights are:

    • United Airlines: 91% on time
    • Frontier: 87% on time
    • Southwest: 80% on time

    Overall, flights on this route are on time 86% of the time on average.

  • How do delay rates compare for morning and evening flights from Raleigh to Denver?

    Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

  • How much time can I save by choosing a different layover airport from Raleigh to Denver?

    Flying via Lambert-St Louis (STL) gives the shortest average 1-stop total travel time at 5h 13m, compared with 5h 24m via Chicago Midway (MDW) and 5h 32m via Nashville Intl (BNA).

  • What is the time difference between Raleigh and Denver?

    Denver is 2 hours behind Raleigh (Mountain Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Denver Intl Airport (DEN)?

    Denver Intl Airport (DEN) hosts 5 major car rental companies, with daily rates starting from around $16 for economy cars. Top options include:
    · Routes Car & Truck Rentals
    · Ace
    · NU Car
    · Europcar
    · Hertz

  • How much should I expect to pay for a Raleigh to Denver flight?

    Round-trip flights from Raleigh to Denver range from $244 to $496, with an average of $354 over the past 12 months. Anything below $244 counts as a good deal.

Your guide to booking Raleigh to Denver flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Thursday departure instead of Sunday. On this route, Thursday flights average $333 - about $93 less than Sunday (22% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 43% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Raleigh to Denver trip for January. Fares historically average $253 round-trip in that month - typically $231 less than the most expensive month, which is July (based on the last 12 months).
  • If arriving on time is high on your priority list, United Airlines is the strongest pick on this route. 91% of United Airlines flights from Raleigh to Denver arrived on time in the past 3 months, slightly above the route's average on-time arrival rate of 86%. When flights on this route do arrive late, the average delay is 2 hours 29 minutes, so choosing a carrier with strong on-time performance can make a difference on tight schedules.
  • If you have the time, taking a 1-stop flight through Baltimore/Washington Airport (BWI) can be cheaper than flying direct. The cheapest layover option averages $226 round-trip on this route - about $142 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Denver Intl Airport.
    - The Westin Denver International Airport
  • Raleigh-Durham International Airport (RDU) is a mid-size airport that operates two terminals, Terminal 1 and 2. The airport has provided a free shuttle service for easy movement between terminals that picks up passengers outside the terminal buildings.
  • Unwind with a massage, facial, manicure, and more at XpresSpa and Na’Sah’s Nail & Spa at RDU. The former is located in Terminal 2 near Gate C, while the latter is in Terminal 1 near Gate A7.
  • Pets are welcome to travel through RDU. However, TSA requires all pets to remain within their carriers at the airport. You’ll find RDU’s pet relief areas outside the baggage claim areas for both terminals.
  • Fly with American Airlines, United Airlines, and Delta to access Denver International Airport (DEN) lounges. Delta operates a members-only lounge on Concourse A, and the other two airlines’ lounges are accessible to passengers flying with them. United Club has two locations, West Wing and East Wing, and the AA lounge is on Concourse A.
  • Public Service Credit Union operates a full-service bank at DEN. They offer banking and currency exchange services and operate several ATMs at DEN. You’ll find the bank in the Jeppesen Terminal, landside on level 6.

Prefer to fly direct from Raleigh to Denver?

 
Find which airlines fly direct from Raleigh-Durham Airport to Denver Intl Airport, which days they fly and book direct flights.

Direct departures

Raleigh-Durham to Denver Intl

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

Direct returns

Denver Intl to Raleigh-Durham

Monday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Tuesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Wednesday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Thursday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Friday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Saturday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

Sunday

Frontier,Southwest,United Airlines

Frontier,Southwest, +1 more

See more direct flights

Everything you need to know for your flight from Raleigh to Denver

Other airlines flying from Raleigh to Denver