Flight Reliability
DL 2501 · Delta Air Lines
Atlanta → Memphis (ATL–MEM)
68
Usually Fine
WanderNerd Reliability Score
- 75%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 3.3%
- Cancelled
- 7 min early
- Median arrival delay
Based on 362 historical flights. Data through May 2026.
What the data says
Mondays have been rough.
DL 2501 arrived on time 84% of the time on Fridays and just 67% on Mondays. That gap is worth planning around.
Lagging the ATL–MEM route.
DL 2501 arrived on time 75% of the time, versus 82% across the ATL–MEM route.
A bit behind the Delta Air Lines network.
DL 2501 arrived on time 75% of the time, versus 81% across the Delta Air Lines network.
Keep a backup plan handy.
DL 2501 was cancelled 3.3% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon67%(51 flights)
- Tue69%(51 flights)
- Wed69%(52 flights)
- Thu77%(51 flights)
- Fri84%(45 flights)
- Sat81%(48 flights)
- Sun79%(52 flights)
77%
May
Jun 64% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 64% | 28 |
| July 2025 | 71% | 31 |
| August 2025 | 87% | 30 |
| September 2025 | 87% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 79% | 28 |
| December 2025 | 72% | 29 |
| January 2026 | 71% | 28 |
| February 2026 | 59% | 27 |
| March 2026 | 70% | 30 |
| April 2026 | 70% | 27 |
| May 2026 | 77% | 31 |
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 350
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 362 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.