Flight Reliability
DL 993 · Delta Air Lines
New York → Atlanta (LGA–ATL)
87
Pretty Reliable
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 1.1%
- Cancelled
- 11 min early
- Median arrival delay
Based on 349 historical flights. Data through May 2026.
What the data says
Thursday is the weak spot.
DL 993 arrived on time 90% of the time on Tuesdays. On Thursdays: 77%.
Better than the LGA–ATL route average.
DL 993 arrived on time 84% of the time, versus 76% across the LGA–ATL route.
Trending in the right direction.
DL 993 arrived on time 87% of the time over the last three months in the data, compared with 79% in the three months before that.
The breakdown
- Mon82%(50 flights)
- Tue90%(51 flights)
- Wed87%(52 flights)
- Thu77%(52 flights)
- Fri89%(52 flights)
- Sat84%(37 flights)
- Sun78%(51 flights)
81%
May
Jun 87% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 85% | 27 |
| September 2025 | 100% | 26 |
| October 2025 | 63% | 30 |
| November 2025 | 83% | 30 |
| December 2025 | 74% | 31 |
| January 2026 | 83% | 30 |
| February 2026 | 81% | 26 |
| March 2026 | 87% | 30 |
| April 2026 | 93% | 28 |
| May 2026 | 81% | 26 |
- Departures on time
- 87%
- Diverted
- 0%
- Flights flown
- 345
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 349 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.