Flight Reliability
DL 1889 · Delta Air Lines
Atlanta → Charlotte Amalie (ATL–STT)
70
Usually Fine
WanderNerd Reliability Score
- 68%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 0.8%
- Cancelled
- 3 min
- Median arrival delay
Based on 246 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 1889 arrived on time 88% of the time on Fridays and just 52% on Sundays. That gap is worth planning around.
A bit behind the ATL–STT route.
DL 1889 arrived on time 68% of the time, versus 75% across the ATL–STT route.
Lagging the Delta Air Lines network.
DL 1889 arrived on time 68% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon59%(32 flights)
- Tue78%(32 flights)
- Wed78%(32 flights)
- Thu81%(32 flights)
- Fri88%(32 flights)
- Sat52%(50 flights)
- Sun52%(33 flights)
77%
May
Jun 70% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 70% | 30 |
| July 2025 | 68% | 31 |
| December 2025 | 57% | 14 |
| January 2026 | 66% | 29 |
| February 2026 | 86% | 28 |
| March 2026 | 55% | 31 |
| April 2026 | 77% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 81%
- Diverted
- 0.4%
- Flights flown
- 243
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 246 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.