MIA to RDU flight delays & on-time performance
Nonstop flights from Miami International Airport to Raleigh-Durham International Airport · 700 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at MIA or RDU right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Miami (MIA) to Raleigh/Durham (RDU) arrived on time 71% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.7% were cancelled, and 13% arrived an hour or more late.
- Frontier Airlines was the most punctual airline here (75% on time); Delta Air Lines was the least (65%).
- Departures scheduled around 8am did best (88% on time); around 5pm did worst (59%).
- Tuesday was the most reliable day to fly (78% on time) and Friday the least (62%).
- The largest source of delay minutes was late-arriving aircraft (50%).
Which airline is most on time from MIA to RDU?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Envoy AirRegional airline operating American Eagle flights. | 79% | 1.0% | 13 min | 7.4% | 96 |
| Frontier Airlines | 75% | 2.0% | 16 min | 9.7% | 199 |
| American Airlines | 71% | 1.4% | 22 min | 12.2% | 1,671 |
| Delta Air Lines | 65% | 2.5% | 33 min | 17.7% | 360 |
| Republic AirwaysRegional airline operating flights for American Eagle, Delta Connection and United Express. | 64% | 6.7% | 30 min | 17.9% | 30 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 5am93%27 flights
- 8am88%267 flights
- 9am86%100 flights
- 10am88%40 flights
- 12pm73%27 flights
- 2pm67%208 flights
- 3pm69%206 flights
- 4pm64%267 flights
- 5pm59%106 flights
- 6pm65%314 flights
- 7pm73%302 flights
- 8pm65%75 flights
- 9pm64%316 flights
- 10pm72%47 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday74%2.5% cancelled
- Tuesday78%1.7% cancelled
- Wednesday75%0.7% cancelled
- Thursday78%0.6% cancelled
- Friday62%0.3% cancelled
- Saturday67%2.5% cancelled
- Sunday63%3.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft50%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion12%
- Extreme weather8%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather72%
- Airline (crew, maintenance, cleaning, fueling)21%
- Air traffic control & airport congestion8%
- Security0%
MIA to RDU: common questions
- How often are MIA to RDU flights on time?
- 71% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Miami to Raleigh/Durham cancelled?
- 1.7% of scheduled flights were cancelled (39 of 2,356).
- How long are typical delays?
- Across all flights the average arrival delay was 23 min (early arrivals count as zero). Flights that were late arrived 75 min behind schedule on average, and 12.7% of flights were an hour or more late.
- How long is taxi time at MIA?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: RDU to MIA — 77% on time
More flights from Miami
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: MIA → RDU, nonstop flights by US airlines that report to the DOT. How we calculate this.