Flight Reliability
DL 5830 · Delta Air Lines
Atlanta → HHH (ATL–HHH)86% of its flights flew this route. The rest (MCI–MCO, MCO–MCI) are included in these numbers.
82
Pretty Reliable
WanderNerd Reliability Score
- 83%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 0.9%
- Cancelled
- 10 min early
- Median arrival delay
Based on 228 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 9 AM–12 PM arrived on time 86% of the time, against 83% between 12–3 PM.
Wednesdays have been rough.
DL 5830 arrived on time 88% of the time on Sundays and just 72% on Wednesdays. That gap is worth planning around.
The breakdown
- Mon87%(30 flights)
- Tue80%(30 flights)
- Wed72%(29 flights)
- Thu82%(28 flights)
- Fri83%(29 flights)
- Sat86%(43 flights)
- Sun88%(34 flights)
- 9 AM–12 PM86%(28 flights)
- 12–3 PM83%(194 flights)
- 3–6 PM—(1 flights)
72%
May
Jun 87% → May 72% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 30 |
| July 2025 | 70% | 30 |
| August 2025 | 83% | 30 |
| September 2025 | 90% | 30 |
| October 2025 | 85% | 26 |
| December 2025 | 90% | 10 |
| April 2026 | 96% | 22 |
| May 2026 | 72% | 29 |
- Departures on time
- 82%
- Diverted
- 1.3%
- Flights flown
- 223
- Months covered
- 11
Keep nerding
Based on 228 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.