Flight Reliability
DL 3129 · Delta Air Lines
Pensacola → Atlanta (PNS–ATL)
92
Nerd Approved
WanderNerd Reliability Score
- 92%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.9%
- Cancelled
- 11 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 3129 arrived on time 98% of the time on Saturdays and just 78% on Sundays. That gap is worth planning around.
Better than the Delta Air Lines network average.
DL 3129 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.
Ticking up lately.
DL 3129 arrived on time 92% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon94%(51 flights)
- Tue94%(51 flights)
- Wed94%(52 flights)
- Thu90%(52 flights)
- Fri94%(51 flights)
- Sat98%(49 flights)
- Sun78%(51 flights)
97%
May
Jun 90% → May 97% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 29 |
| July 2025 | 93% | 30 |
| August 2025 | 97% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 90% | 30 |
| November 2025 | 93% | 29 |
| December 2025 | 80% | 30 |
| January 2026 | 90% | 30 |
| February 2026 | 96% | 28 |
| March 2026 | 86% | 29 |
| April 2026 | 93% | 30 |
| May 2026 | 97% | 31 |
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 357
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.