Flight Reliability
DL 2728 · Delta Air Lines
Salt Lake City → Austin (SLC–AUS)
83
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.8%
- Cancelled
- 7 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Monday is the weak spot.
DL 2728 arrived on time 89% of the time on Saturdays. On Mondays: 75%.
The breakdown
- Mon75%(52 flights)
- Tue84%(51 flights)
- Wed83%(52 flights)
- Thu78%(51 flights)
- Fri80%(50 flights)
- Sat89%(52 flights)
- Sun80%(49 flights)
- 3–6 PM82%(356 flights)
- 6–9 PM—(1 flights)
86%
May
Jun 63% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 30 |
| July 2025 | 62% | 29 |
| August 2025 | 81% | 31 |
| September 2025 | 93% | 30 |
| October 2025 | 71% | 31 |
| November 2025 | 64% | 28 |
| December 2025 | 84% | 31 |
| January 2026 | 90% | 30 |
| February 2026 | 93% | 28 |
| March 2026 | 94% | 31 |
| April 2026 | 93% | 30 |
| May 2026 | 86% | 28 |
- Departures on time
- 81%
- Diverted
- 0.8%
- Flights flown
- 357
- Months covered
- 12
Same route, other flights
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.