Raleigh/Durham (RDU) to Denver (DEN) flights
3 airlines fly nonstop from Raleigh/Durham (RDU) to Denver (DEN): Frontier Airlines, Southwest Airlines and United Airlines. The two airports are 1,433 miles (2,306 km) apart. United Airlines is in Star Alliance. There are also 56 ways to fly it with one stop, through Saint Louis, Kansas City and Louisville and more.
Airlines flying nonstop from RDU to DEN
- Frontier AirlinesNot in an allianceWho books it
- Southwest AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book RDU to DEN with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
RDU to DEN with one stop
56 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Saint Louis (STL)Southwest Airlines the whole way
- Via Kansas City (MCI)Southwest Airlines the whole way
+1 - Via Louisville (SDF)Breeze Airways, then United Airlines and Southwest Airlines
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Cincinnati (CVG)Delta Air Lines, then Frontier Airlines, United Airlines and 1 more
- Via Indianapolis (IND)Delta Air Lines, then Frontier Airlines, United Airlines and 1 more
- Via Charlotte (CLT)American Airlines the whole way+1
- Via Dayton (DAY)Breeze Airways, then United Airlines
- Via Memphis (MEM)Breeze Airways, then Frontier Airlines, United Airlines and 1 more
- Via Columbus (CMH)Breeze Airways, then Frontier Airlines, United Airlines and 1 more
- Via Chicago (MDW)Southwest Airlines the whole way
- Via Chicago (ORD)American Airlines and United Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines and Frontier Airlines the whole way+1
- Via Birmingham (BHM)Breeze Airways, then United Airlines and Southwest Airlines
- Via Madison (MSN)Breeze Airways, then Frontier Airlines and United Airlines
RDU to DEN: common questions
Which airlines fly nonstop from RDU to DEN?
Frontier Airlines, Southwest Airlines and United Airlines (Star Alliance) fly nonstop from Raleigh/Durham (RDU) to Denver (DEN).
How far is Raleigh/Durham from Denver by plane?
Raleigh/Durham (RDU) and Denver (DEN) are 1,433 miles (2,306 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book RDU to DEN award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does RDU to DEN cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for RDU to DEN with taxes and fees.
Where can I connect between Raleigh/Durham and Denver?
The most direct connections are through Saint Louis (STL), Kansas City (MCI), Louisville (SDF), Nashville (BNA) and Cincinnati (CVG). On 32 of them the same airline flies both flights, for example Southwest Airlines through Saint Louis.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.