Flight Reliability
DL 858 · Delta Air Lines
Los Angeles → Nashville (LAX–BNA)95% of its flights flew this route. The rest (MSP–SFO) are included in these numbers.
80
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 2.1%
- Cancelled
- 7 min early
- Median arrival delay
Based on 330 historical flights. Data through May 2026.
What the data says
The 3–6 PM departure wins.
DL 858 departing between 3–6 PM arrived on time 90% of the time, versus 75% between 6–9 PM.
Sunday scaries are real for this one.
DL 858 arrived on time 91% of the time on Wednesdays and just 68% on Sundays. That gap is worth planning around.
The breakdown
- Mon80%(50 flights)
- Tue81%(41 flights)
- Wed91%(42 flights)
- Thu88%(49 flights)
- Fri80%(49 flights)
- Sat78%(45 flights)
- Sun68%(47 flights)
- 12–3 PM—(6 flights)
- 3–6 PM90%(122 flights)
- 6–9 PM75%(195 flights)
77%
May
Jun 69% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 69% | 29 |
| July 2025 | 77% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 97% | 29 |
| October 2025 | 91% | 22 |
| November 2025 | 69% | 13 |
| December 2025 | 59% | 22 |
| January 2026 | 86% | 28 |
| February 2026 | 86% | 28 |
| March 2026 | 72% | 29 |
| April 2026 | 83% | 30 |
| May 2026 | 77% | 31 |
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 323
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 330 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.