Flight Reliability
DL 1543 · Delta Air Lines
Detroit → Dallas–Fort Worth (DTW–DFW)
74
Usually Fine
WanderNerd Reliability Score
- 73%
- Arrive within 15 minutes
- 10 min
- Average arrival delay
- 1.3%
- Cancelled
- 3 min early
- Median arrival delay
Based on 318 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
DL 1543 arrived on time 86% of the time on Thursdays and just 60% on Saturdays. That gap is worth planning around.
A bit behind the DTW–DFW route.
DL 1543 arrived on time 73% of the time, versus 77% across the DTW–DFW route.
Lagging the Delta Air Lines network.
DL 1543 arrived on time 73% of the time, versus 81% across the Delta Air Lines network.
The breakdown
- Mon65%(49 flights)
- Tue80%(51 flights)
- Wed67%(51 flights)
- Thu86%(50 flights)
- Fri68%(50 flights)
- Sat60%(15 flights)
- Sun72%(47 flights)
- 12–3 PM—(2 flights)
- 3–6 PM73%(311 flights)
58%
May
Jun 67% → May 58% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 24 |
| July 2025 | 59% | 22 |
| August 2025 | 83% | 24 |
| September 2025 | 76% | 29 |
| October 2025 | 77% | 31 |
| November 2025 | 62% | 29 |
| December 2025 | 69% | 29 |
| January 2026 | 64% | 25 |
| February 2026 | 87% | 23 |
| March 2026 | 82% | 27 |
| April 2026 | 85% | 26 |
| May 2026 | 58% | 24 |
- Departures on time
- 79%
- Diverted
- 0.3%
- Flights flown
- 313
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 318 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.