Flight Reliability
DL 2236 · Delta Air Lines
Salt Lake City → Detroit (SLC–DTW)
98
Nerd Approved
WanderNerd Reliability Score
- 92%
- Arrive within 15 minutes
- 8 min early
- Average arrival delay
- 0%
- Cancelled
- 11 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Monday is the weak spot.
DL 2236 arrived on time 98% of the time on Tuesdays. On Mondays: 86%.
Better than the Delta Air Lines network average.
DL 2236 arrived on time 92% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 365 scheduled flights, only 0.0% were cancelled.
Trending in the right direction.
DL 2236 arrived on time 99% of the time over the last three months in the data, compared with 90% in the three months before that.
The breakdown
- Mon86%(51 flights)
- Tue98%(52 flights)
- Wed89%(52 flights)
- Thu98%(52 flights)
- Fri90%(52 flights)
- Sat90%(52 flights)
- Sun89%(53 flights)
100%
May
Jun 73% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 73% | 30 |
| July 2025 | 83% | 30 |
| August 2025 | 90% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 100% | 31 |
| November 2025 | 97% | 30 |
| December 2025 | 84% | 31 |
| January 2026 | 90% | 31 |
| February 2026 | 96% | 28 |
| March 2026 | 100% | 31 |
| April 2026 | 97% | 30 |
| May 2026 | 100% | 31 |
- Departures on time
- 96%
- Diverted
- 0.3%
- Flights flown
- 364
- 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.