Flight Reliability
DL 1489 · Delta Air Lines
Atlanta → Fort Lauderdale (ATL–FLL)
66
Usually Fine
WanderNerd Reliability Score
- 65%
- Arrive within 15 minutes
- 18 min
- Average arrival delay
- 0.8%
- Cancelled
- 3 min
- Median arrival delay
Based on 355 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 1489 arrived on time 77% of the time on Saturdays and just 52% on Sundays. That gap is worth planning around.
A bit behind the ATL–FLL route.
DL 1489 arrived on time 65% of the time, versus 70% across the ATL–FLL route.
Well behind the Delta Air Lines network.
DL 1489 arrived on time 65% of the time, versus 81% across the Delta Air Lines network.
Recent months have been rougher.
DL 1489 arrived on time 60% of the time over the last three months in the data, compared with 69% in the three months before that.
The breakdown
- Mon73%(51 flights)
- Tue73%(51 flights)
- Wed69%(52 flights)
- Thu60%(52 flights)
- Fri56%(52 flights)
- Sat77%(44 flights)
- Sun52%(50 flights)
53%
May
Jun 30% → May 53% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 30% | 30 |
| July 2025 | 68% | 31 |
| August 2025 | 71% | 31 |
| September 2025 | 80% | 30 |
| October 2025 | 77% | 31 |
| November 2025 | 69% | 29 |
| December 2025 | 71% | 31 |
| January 2026 | 72% | 29 |
| February 2026 | 64% | 22 |
| March 2026 | 46% | 28 |
| April 2026 | 80% | 30 |
| May 2026 | 53% | 30 |
- Departures on time
- 64%
- Diverted
- 0%
- Flights flown
- 352
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 355 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.