Flight Reliability
DL 2137 · Delta Air Lines
Indianapolis → Salt Lake City (IND–SLC)
91
Nerd Approved
WanderNerd Reliability Score
- 89%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 1.4%
- Cancelled
- 8 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Monday is the weak spot.
DL 2137 arrived on time 94% of the time on Wednesdays. On Mondays: 80%.
Better than the Delta Air Lines network average.
DL 2137 arrived on time 89% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 2137 arrived on time 90% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon80%(51 flights)
- Tue89%(52 flights)
- Wed94%(52 flights)
- Thu92%(51 flights)
- Fri87%(52 flights)
- Sat90%(50 flights)
- Sun88%(51 flights)
100%
May
Jun 93% → May 100% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 90% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 90% | 29 |
| December 2025 | 79% | 29 |
| January 2026 | 77% | 30 |
| February 2026 | 85% | 27 |
| March 2026 | 83% | 30 |
| April 2026 | 87% | 30 |
| May 2026 | 100% | 31 |
- Departures on time
- 94%
- Diverted
- 0%
- Flights flown
- 359
- Months covered
- 12
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.