RDU (Raleigh) to BUF (Buffalo) flights arrive on time 69% of the time. The most reliable airline on this route is Frontier Airlines at 67%. The average delay is 64 minutes. Delays on this route are most often caused by the incoming plane arriving late.
Source: Bureau of Transportation Statistics. Updated March 2026.RDU → BUF
RDU (Raleigh) to BUF (Buffalo)
RDU → BUF on-time performance by month
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This route is delayed fairly often. About 69% of flights arrive on schedule.
Delays on this route are most often caused by the incoming plane arriving late.
Accurate?
Accurate?
Good to know
Departing from RDU
80% on timeExpect ~18 min sitting on the taxiway after your gate pushes back. RDU has long runway queues.
TSA is currently ~14 min. Best time: 4 AM (about 5 min).
Arriving at BUF
79% on timeWhen flights into BUF are late, the average delay is 71 minutes. Build buffer if you have ground plans.
If connecting at BUF: TSA is ~13 min right now. Allow at least 60 minutes for a domestic connection.
BUF has a 2.7% cancellation rate — keep the airline app handy for rebooking.
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Data last updated March 2026. Source: Bureau of Transportation Statistics.