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

Raleigh/Durham, NC (RDU) to Atlanta, GA (ATL) flight delay odds

86.2% of 4,618 official scheduled RDU-to-ATL flights arrived on time; 8.2% arrived at least 30 minutes late and 1.5% 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
86.2%arrived on time
8.2%30+ min late
1.5%cancelled
4,618scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.7%all scheduled flights
120+ minutes late2.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+0.3 mincompleted flights

Which departure time was most reliable for RDU to ATL?

Among qualifying RDU-to-ATL departure window results, Late morning had the highest on-time rate: 93.4% of 756 flights. Evening was lowest at 80.2% across 844 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning1,68688.0%7.1%1.7%
Late morning75693.4%3.0%1.2%
Afternoon1,32983.6%10.3%1.2%
Evening84480.2%11.6%2.0%

Which weekday was most reliable for RDU to ATL?

Among qualifying RDU-to-ATL weekday results, Wednesday had the highest on-time rate: 90.9% of 625 flights. Sunday was lowest at 80.2% across 686 flights.

DayFlightsOn time30+ minCancelled
Monday70184.6%9.0%2.6%
Tuesday63387.7%8.4%0.5%
Wednesday62590.9%5.3%0.2%
Thursday69189.9%5.6%0.4%
Friday69186.0%9.3%1.2%
Saturday59184.6%8.6%2.4%
Sunday68680.2%10.9%3.4%

Which airline was most reliable for RDU to ATL?

Among qualifying RDU-to-ATL airline results, Southwest Airlines had the highest on-time rate: 89.5% of 247 flights. Frontier Airlines was lowest at 71.8% across 571 flights.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,80088.2%6.8%1.4%
Frontier Airlines57171.8%18.4%2.8%
Southwest Airlines24789.5%5.3%0.8%

Which month was most reliable for RDU to ATL?

Among qualifying RDU-to-ATL month results, September 2025 had the highest on-time rate: 95.5% of 401 flights. March 2026 was lowest at 76.5% across 375 flights.

MonthFlightsOn time30+ minCancelled
July 202539881.7%12.6%1.0%
August 202540287.8%7.7%0.7%
September 202540195.5%2.0%0.0%
October 202541689.2%5.8%0.0%
November 202539785.9%8.3%1.8%
December 202539679.8%12.1%2.3%
January 202635685.7%5.9%6.5%
February 202632490.4%5.9%0.3%
March 202637576.5%13.6%3.7%
April 202637187.1%9.2%0.5%
May 202639085.6%8.7%1.0%
June 202639289.3%6.4%0.8%

What drove RDU to ATL delay minutes?

Airline was the largest recorded RDU-to-ATL delay category, accounting for 38.7% of 49,189 BTS-attributed delay minutes during July 2025–June 2026.

Airline38.7%
Late aircraft35.4%
National airspace25.2%
Weather0.6%
Security0.0%
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.