DEN (Denver) to RDU (Raleigh) flights arrive on time 74% of the time. The most reliable airline on this route is United Airlines at 79%. The average delay is 56 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.DEN → RDU
DEN (Denver) to RDU (Raleigh)
DEN → RDU on-time performance by month
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25
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
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This route is delayed fairly often. About 74% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
United Airlines edges out Southwest Airlines on this route — 79% vs 66% on time.
Airline Comparison
United Airlines leads at 79% on time; Southwest Airlines trails at 66%.
Accurate?
Good to know
Departing from DEN
78% on timeExpect ~17 min sitting on the taxiway after your gate pushes back. DEN has long runway queues.
TSA is currently ~5 min. Best time: 4 AM (about 5 min).
Arriving at RDU
80% on timeWhen flights into RDU are late, the average delay is 72 minutes. Build buffer if you have ground plans.
If connecting at RDU: TSA is ~5 min right now. Allow at least 60 minutes for a domestic connection.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.