Flight Reliability
DL 2873 · Delta Air Lines
Austin → Salt Lake City (AUS–SLC)
90
Nerd Approved
WanderNerd Reliability Score
- 84%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0.5%
- Cancelled
- 8 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
DL 2873 departing between 9 AM–12 PM arrived on time 91% of the time, versus 82% between 12–3 PM.
Friday is doing you no favors.
DL 2873 arrived on time 92% of the time on Tuesdays and just 73% on Fridays. That gap is worth planning around.
Ticking up lately.
DL 2873 arrived on time 85% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon89%(52 flights)
- Tue92%(52 flights)
- Wed77%(52 flights)
- Thu83%(52 flights)
- Fri73%(51 flights)
- Sat83%(52 flights)
- Sun89%(52 flights)
- 9 AM–12 PM91%(56 flights)
- 12–3 PM82%(307 flights)
90%
May
Jun 80% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 77% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 77% | 31 |
| November 2025 | 83% | 30 |
| December 2025 | 84% | 31 |
| January 2026 | 68% | 31 |
| February 2026 | 89% | 28 |
| March 2026 | 87% | 31 |
| April 2026 | 79% | 29 |
| May 2026 | 90% | 30 |
- Departures on time
- 82%
- Diverted
- 0%
- Flights flown
- 363
- 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.