Flight Reliability
DL 1301 · Delta Air Lines
West Palm Beach → Atlanta (PBI–ATL)
97
Nerd Approved
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 0.5%
- Cancelled
- 13 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
DL 1301 arrived on time 98% of the time on Fridays and just 83% on Mondays. That gap is worth planning around.
Better than the PBI–ATL route average.
DL 1301 arrived on time 91% of the time, versus 82% across the PBI–ATL route.
Better than the Delta Air Lines network average.
DL 1301 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
Slipping a little lately.
DL 1301 arrived on time 88% of the time over the last three months in the data, compared with 91% in the three months before that.
The breakdown
- Mon83%(52 flights)
- Tue87%(52 flights)
- Wed96%(52 flights)
- Thu92%(52 flights)
- Fri98%(52 flights)
- Sat92%(51 flights)
- Sun89%(52 flights)
90%
May
Jun 90% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 90% | 29 |
| July 2025 | 90% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 90% | 31 |
| November 2025 | 87% | 30 |
| December 2025 | 90% | 31 |
| January 2026 | 90% | 31 |
| February 2026 | 93% | 28 |
| March 2026 | 84% | 31 |
| April 2026 | 90% | 29 |
| May 2026 | 90% | 31 |
- Departures on time
- 92%
- Diverted
- 0%
- Flights flown
- 363
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.