Raleigh/Durham (RDU) to Buffalo (BUF): On-Time Performance
Data through May 2026
Raleigh/Durham (RDU) to Buffalo (BUF) is a thinner route than most in this dataset — 106 departures over the past year, roughly 2 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 70% arrived on time, noticeably below the national average of 78%.
- On-time
- 70%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 2.3%
- Flights/day
- 0.29
- last 12 months
- Duration
- 1h 42m
- scheduled
- Distance
- 487 mi
Monthly on-time trend
Best time to fly from RDU to BUF
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 69% | 14 min |
| Tuesday | 27% | 27 min |
| Wednesdaybest | 100% | 0 min |
| Thursday | 76% | 16 min |
| Friday | 88% | 7 min |
| Saturday | 60% | 29 min |
| Sunday | 65% | 27 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft66%
- Airline operations20%
- National airspace system14%
- Weather1%
Frequently asked questions
- How often are flights from RDU to BUF delayed?
- 30% of RDU–BUF flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 20 minutes.
- How long is the flight from RDU to BUF?
- The scheduled RDU–BUF flight time averages 1h 42m over 487 miles. Actual arrival times vary — flights on this route land 15+ minutes late 30% of the time.
- How often are RDU to BUF flights cancelled?
- 2.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
Explore related pages
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Based on 214 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.