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Route Reliability

Raleigh–Durham → Cincinnati

RDU–CVG · 390 miles · Raleigh–Durham International Airport to Cincinnati/Northern Kentucky International Airport

84
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
5 min
Average arrival delay
0.6%
Cancelled
308
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 79% of the time across 308 flights. No comparison to make.

What the data says

The 12–3 PM departure wins.

RDU–CVG flights departing between 12–3 PM arrived on time 81% of the time, versus 73% between 3–6 PM.

Saturday is the weak spot.

RDU–CVG flights arrived on time 85% of the time on Fridays. On Saturdays: 71%.

Ticking up lately.

RDU–CVG flights arrived on time 77% of the time over the last three months in the data, compared with 73% in the three months before that.

The breakdown

On-time by weekday
  • Mon78%(49 flights)
  • Tue72%(50 flights)
  • Wed78%(50 flights)
  • Thu82%(50 flights)
  • Fri85%(48 flights)
  • Sat71%(14 flights)
  • Sun80%(45 flights)
On-time by departure window
  • 9 AM–12 PM80%(15 flights)
  • 12–3 PM81%(205 flights)
  • 3–6 PM73%(86 flights)
On-time trend by month
74%
May

Jun 82% → May 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%27
July 202554%26
August 202580%25
September 202592%26
October 202593%27
November 202592%24
December 202565%17
January 202686%21
February 202668%22
March 202680%30
April 202677%30
May 202674%31

Keep nerding

Based on 308 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.