Flight Reliability
DL 989 · Delta Air Lines
New York → Atlanta (LGA–ATL)
84
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 3 min early
- Average arrival delay
- 2.1%
- Cancelled
- 14 min early
- Median arrival delay
Based on 326 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
DL 989 arrived on time 90% of the time on Tuesdays and just 63% on Saturdays. That gap is worth planning around.
Better than the LGA–ATL route average.
DL 989 arrived on time 85% of the time, versus 76% across the LGA–ATL route.
A bit ahead of the Delta Air Lines network.
DL 989 arrived on time 85% of the time, versus 81% across the Delta Air Lines network.
Ticking up lately.
DL 989 arrived on time 85% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon83%(48 flights)
- Tue90%(51 flights)
- Wed86%(50 flights)
- Thu90%(49 flights)
- Fri86%(51 flights)
- Sat63%(19 flights)
- Sun80%(51 flights)
80%
May
Jun 81% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 81% | 26 |
| July 2025 | 100% | 27 |
| August 2025 | 89% | 28 |
| September 2025 | 97% | 30 |
| October 2025 | 79% | 28 |
| November 2025 | 73% | 26 |
| December 2025 | 68% | 25 |
| January 2026 | 91% | 23 |
| February 2026 | 82% | 22 |
| March 2026 | 96% | 26 |
| April 2026 | 79% | 28 |
| May 2026 | 80% | 30 |
- Departures on time
- 88%
- Diverted
- 0%
- Flights flown
- 319
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 326 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.