BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
RDU→MIA

Raleigh/Durham, NC (RDU) to Miami, FL (MIA) flight delay odds

75.2% of 2,350 official scheduled RDU-to-MIA flights arrived on time; 16.9% arrived at least 30 minutes late and 1.8% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
75.2%arrived on time
16.9%30+ min late
1.8%cancelled
2,350scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.6%all scheduled flights
120+ minutes late4.2%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+13.6 mincompleted flights

Which departure time was most reliable for RDU to MIA?

Among qualifying RDU-to-MIA departure window results, Early morning had the highest on-time rate: 84.6% of 1,057 flights. Evening was lowest at 62.6% across 692 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,05784.6%10.1%1.8%
Late morning39077.4%14.4%2.1%
Afternoon19668.4%20.4%1.5%
Evening69262.6%27.2%1.4%

Which weekday was most reliable for RDU to MIA?

Among qualifying RDU-to-MIA weekday results, Thursday had the highest on-time rate: 81.9% of 349 flights. Sunday was lowest at 68.7% across 358 flights.

DayFlightsOn time30+ minCancelled
Monday36274.9%16.0%4.1%
Tuesday30979.0%13.9%1.9%
Wednesday29378.8%15.0%0.7%
Thursday34981.9%12.9%0.6%
Friday35671.3%20.5%0.6%
Saturday32373.1%16.4%0.9%
Sunday35868.7%22.3%3.6%

Which airline was most reliable for RDU to MIA?

Among qualifying RDU-to-MIA airline results, Delta Air Lines had the highest on-time rate: 79.2% of 360 flights. Republic Airways was lowest at 56.7% across 30 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines1,70575.7%16.8%1.6%
Delta Air Lines36079.2%15.6%1.7%
Frontier Airlines18567.6%20.5%3.8%
Envoy Air7071.4%12.9%1.4%
Republic Airways3056.7%23.3%3.3%

Which month was most reliable for RDU to MIA?

Among qualifying RDU-to-MIA month results, September 2025 had the highest on-time rate: 82.2% of 180 flights. July 2025 was lowest at 67.0% across 224 flights.

MonthFlightsOn time30+ minCancelled
July 202522467.0%25.4%2.2%
August 202519668.9%25.0%0.5%
September 202518082.2%13.3%0.0%
October 202519477.3%14.9%0.5%
November 202518575.7%14.1%0.5%
December 202518977.2%15.3%0.5%
January 202620069.5%15.5%8.0%
February 202618373.8%20.2%2.2%
March 202620472.1%16.2%4.4%
April 202619781.7%11.7%1.0%
May 202620377.8%16.7%0.0%
June 202619581.5%12.3%1.5%

What drove RDU to MIA delay minutes?

Late aircraft was the largest recorded RDU-to-MIA delay category, accounting for 46.1% of 50,837 BTS-attributed delay minutes during July 2025–June 2026.

Airline41.2%
Late aircraft46.1%
National airspace11.2%
Weather1.3%
Security0.2%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.