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Flight Reliability

DL 4985 · Delta Air Lines

New York → Cincinnati (JFK–CVG)96% of its flights flew this route. The rest (CLE–MSP) are included in these numbers.

83
Pretty Reliable
WanderNerd Reliability Score
85%
Arrive within 15 minutes
1 min
Average arrival delay
2.5%
Cancelled
11 min early
Median arrival delay

Based on 363 historical flights. Data through May 2026.

What the data says

Sunday scaries are real for this one.

DL 4985 arrived on time 88% of the time on Fridays. On Sundays: 80%.

A bit ahead of the JFK–CVG route.

DL 4985 arrived on time 85% of the time, versus 79% across the JFK–CVG route.

A bit ahead of the Delta Air Lines network.

DL 4985 arrived on time 85% of the time, versus 81% across the Delta Air Lines network.

Trending in the right direction.

DL 4985 arrived on time 86% of the time over the last three months in the data, compared with 78% in the three months before that.

The breakdown

On-time by weekday
  • Mon86%(49 flights)
  • Tue80%(51 flights)
  • Wed85%(52 flights)
  • Thu86%(51 flights)
  • Fri88%(50 flights)
  • Sat86%(51 flights)
  • Sun80%(50 flights)
On-time by departure window
  • 6–9 AM86%(188 flights)
  • 9 AM–12 PM83%(166 flights)
On-time trend by month
87%
May

Jun 80% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202587%31
August 202597%31
September 202590%30
October 202587%30
November 202579%29
December 202572%29
January 202682%27
February 202681%26
March 202677%31
April 202693%30
May 202687%30
Departures on time
88%
Diverted
0%
Flights flown
354
Months covered
12

Same route, other flights

Keep nerding

Based on 363 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.