Flight Reliability
DL 2787 · Delta Air Lines
Denver → Detroit (DEN–DTW)
87
Pretty Reliable
WanderNerd Reliability Score
- 82%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 0%
- Cancelled
- 5 min early
- Median arrival delay
Based on 324 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
DL 2787 arrived on time 93% of the time on Saturdays and just 74% on Fridays. That gap is worth planning around.
A bit ahead of the DEN–DTW route.
DL 2787 arrived on time 82% of the time, versus 78% across the DEN–DTW route.
It basically never cancels.
Out of 324 scheduled flights, only 0.0% were cancelled.
Trending in the right direction.
DL 2787 arrived on time 84% of the time over the last three months in the data, compared with 75% in the three months before that.
The breakdown
- Mon78%(46 flights)
- Tue85%(46 flights)
- Wed81%(47 flights)
- Thu76%(46 flights)
- Fri74%(46 flights)
- Sat93%(45 flights)
- Sun85%(46 flights)
90%
Apr
Jun 79% → Apr 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 70% | 30 |
| August 2025 | 90% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 84% | 31 |
| November 2025 | 90% | 30 |
| December 2025 | 63% | 19 |
| January 2026 | 70% | 27 |
| February 2026 | 86% | 28 |
| March 2026 | 77% | 31 |
| April 2026 | 90% | 30 |
- Departures on time
- 81%
- Diverted
- 0.6%
- Flights flown
- 322
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 324 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.