Flight Reliability
DL 1611 · Delta Air Lines
Detroit → Atlanta (DTW–ATL)
87
Pretty Reliable
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 4 min
- Average arrival delay
- 1.1%
- Cancelled
- 7 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
DL 1611 arrived on time 90% of the time on Wednesdays. On Sundays: 77%.
Better than the DTW–ATL route average.
DL 1611 arrived on time 86% of the time, versus 78% across the DTW–ATL route.
A bit ahead of the Delta Air Lines network.
DL 1611 arrived on time 86% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 1611 arrived on time 89% of the time over the last three months in the data, compared with 78% in the three months before that.
The breakdown
- Mon85%(52 flights)
- Tue88%(48 flights)
- Wed90%(52 flights)
- Thu85%(52 flights)
- Fri90%(52 flights)
- Sat90%(50 flights)
- Sun77%(52 flights)
90%
May
Jun 79% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 90% | 31 |
| August 2025 | 94% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 90% | 31 |
| November 2025 | 83% | 29 |
| December 2025 | 74% | 31 |
| January 2026 | 67% | 30 |
| February 2026 | 93% | 27 |
| March 2026 | 83% | 30 |
| April 2026 | 93% | 28 |
| May 2026 | 90% | 31 |
- Departures on time
- 90%
- Diverted
- 0.8%
- Flights flown
- 358
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.