Flight Reliability
DL 5479 · Delta Air Lines
Cincinnati → Detroit (CVG–DTW)95% of its flights flew this route. The rest (DTW–IND, MEM–ATL) are included in these numbers.
80
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 1.8%
- Cancelled
- 8 min early
- Median arrival delay
Based on 328 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
DL 5479 departing between 6–9 AM arrived on time 83% of the time, versus 71% between 3–6 PM.
Tuesdays have been rough.
DL 5479 arrived on time 91% of the time on Fridays and just 75% on Tuesdays. That gap is worth planning around.
The breakdown
- Mon78%(45 flights)
- Tue75%(47 flights)
- Wed83%(47 flights)
- Thu84%(45 flights)
- Fri91%(43 flights)
- Sat81%(47 flights)
- Sun83%(46 flights)
- 6–9 AM83%(304 flights)
- 9 AM–12 PM—(1 flights)
- 3–6 PM71%(14 flights)
- 6–9 PM—(1 flights)
77%
May
Jun 75% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 28 |
| July 2025 | 77% | 31 |
| August 2025 | 87% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 93% | 30 |
| December 2025 | 79% | 28 |
| January 2026 | 59% | 17 |
| February 2026 | 91% | 11 |
| March 2026 | 65% | 23 |
| April 2026 | 83% | 30 |
| May 2026 | 77% | 30 |
- Departures on time
- 80%
- Diverted
- 0.6%
- Flights flown
- 320
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 328 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.