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Flight Reliability

DL 5400 · Delta Air Lines

Cincinnati → Raleigh–Durham (CVG–RDU)

81
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
7 min
Average arrival delay
1.0%
Cancelled
6 min early
Median arrival delay

Based on 303 historical flights. Data through May 2026.

What the data says

12–3 PM has a slight edge.

Departures between 12–3 PM arrived on time 80% of the time, against 77% between 3–6 PM.

Sunday scaries are real for this one.

DL 5400 arrived on time 85% of the time on Fridays and just 62% on Sundays. That gap is worth planning around.

A bit behind the Delta Air Lines network.

DL 5400 arrived on time 78% of the time, versus 81% across the Delta Air Lines network.

The breakdown

On-time by weekday
  • Mon73%(48 flights)
  • Tue84%(50 flights)
  • Wed84%(50 flights)
  • Thu80%(49 flights)
  • Fri85%(48 flights)
  • Sat—(9 flights)
  • Sun62%(45 flights)
On-time by departure window
  • 12–3 PM80%(116 flights)
  • 3–6 PM77%(183 flights)
On-time trend by month
77%
May

Jun 65% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202565%26
July 202550%26
August 202583%24
September 202596%26
October 202589%27
November 202579%24
December 202577%17
January 202686%21
February 202673%22
March 202674%27
April 202689%28
May 202677%31
Departures on time
78%
Diverted
0.3%
Flights flown
299
Months covered
12

Same route, other flights

Keep nerding

Based on 303 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.