Flight Reliability
DL 1104 · Delta Air Lines
Atlanta → Dallas (ATL–DAL)
74
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 3.0%
- Cancelled
- 9 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 1104 arrived on time 88% of the time on Wednesdays and just 69% on Fridays. That gap is worth planning around.
Keep a backup plan handy.
DL 1104 was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.
Recent months have been rougher.
DL 1104 arrived on time 79% of the time over the last three months in the data, compared with 86% in the three months before that.
The breakdown
- Mon73%(51 flights)
- Tue82%(51 flights)
- Wed88%(51 flights)
- Thu85%(48 flights)
- Fri69%(49 flights)
- Sat80%(50 flights)
- Sun75%(52 flights)
83%
May
Jun 57% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 57% | 28 |
| July 2025 | 57% | 30 |
| August 2025 | 84% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 76% | 29 |
| December 2025 | 84% | 31 |
| January 2026 | 86% | 29 |
| February 2026 | 89% | 28 |
| March 2026 | 71% | 28 |
| April 2026 | 82% | 27 |
| May 2026 | 83% | 30 |
- Departures on time
- 78%
- Diverted
- 0.3%
- Flights flown
- 352
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.