Flight Reliability
DL 1858 · Delta Air Lines
Cincinnati → Atlanta (CVG–ATL)89% of its flights flew this route. The rest (SNA–DTW, ATL–CVG) are included in these numbers.
- 75%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 0.5%
- Cancelled
- 5 min early
- Median arrival delay
Based on 220 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 1858 arrived on time 84% of the time on Wednesdays and just 63% on Sundays. That gap is worth planning around.
Lagging the CVG–ATL route.
DL 1858 arrived on time 75% of the time, versus 87% across the CVG–ATL route.
A bit behind the Delta Air Lines network.
DL 1858 arrived on time 75% of the time, versus 81% across the Delta Air Lines network.
Recent months have been rougher.
DL 1858 arrived on time 68% of the time over the last three months in the data, compared with 83% in the three months before that.
The breakdown
- Mon79%(33 flights)
- Tue68%(31 flights)
- Wed84%(32 flights)
- Thu78%(32 flights)
- Fri74%(31 flights)
- Sat78%(27 flights)
- Sun63%(32 flights)
- 12–3 PM75%(214 flights)
- 6–9 PM—(4 flights)
Jun 57% → Apr 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 23 |
| July 2025 | 73% | 30 |
| August 2025 | 65% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 90% | 31 |
| November 2025 | 80% | 30 |
| December 2025 | 50% | 18 |
| April 2026 | 75% | 16 |
- Departures on time
- 71%
- Diverted
- 0.5%
- Flights flown
- 218
- Months covered
- 9
Same route, other flights
Keep nerding
Based on 220 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.