Flight Reliability
DL 2142 · Delta Air Lines
Columbus → Salt Lake City (CMH–SLC)
97
Nerd Approved
WanderNerd Reliability Score
- 91%
- Arrive within 15 minutes
- 4 min early
- Average arrival delay
- 0.6%
- Cancelled
- 9 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Tuesday comes out ahead.
A small edge: 94% on time on Tuesdays against 88% on Saturdays.
Better than the Delta Air Lines network average.
DL 2142 arrived on time 91% of the time, versus 81% across the Delta Air Lines network.
Trending in the right direction.
DL 2142 arrived on time 91% of the time over the last three months in the data, compared with 81% in the three months before that.
The breakdown
- Mon90%(52 flights)
- Tue94%(52 flights)
- Wed92%(52 flights)
- Thu94%(51 flights)
- Fri88%(51 flights)
- Sat88%(51 flights)
- Sun89%(52 flights)
94%
May
Jun 97% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 97% | 30 |
| July 2025 | 97% | 31 |
| August 2025 | 97% | 30 |
| September 2025 | 100% | 30 |
| October 2025 | 93% | 30 |
| November 2025 | 90% | 30 |
| December 2025 | 80% | 30 |
| January 2026 | 77% | 30 |
| February 2026 | 86% | 28 |
| March 2026 | 87% | 31 |
| April 2026 | 93% | 30 |
| May 2026 | 94% | 31 |
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 361
- Months covered
- 12
Keep nerding
Based on 363 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.