Flight Reliability
DL 500 · Delta Air Lines
Atlanta → Los Angeles (ATL–LAX)
82
Pretty Reliable
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.3%
- Cancelled
- 3 min early
- Median arrival delay
Based on 362 historical flights. Data through May 2026.
What the data says
3–6 PM has a slight edge.
Departures between 3–6 PM arrived on time 79% of the time, against 76% between 6–9 PM.
Tuesdays have been rough.
DL 500 arrived on time 82% of the time on Wednesdays and just 65% on Tuesdays. That gap is worth planning around.
A bit behind the Delta Air Lines network.
DL 500 arrived on time 76% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 362 scheduled flights, only 0.3% were cancelled.
The breakdown
- Mon79%(52 flights)
- Tue65%(52 flights)
- Wed82%(51 flights)
- Thu78%(51 flights)
- Fri78%(50 flights)
- Sat79%(52 flights)
- Sun73%(52 flights)
- 3–6 PM79%(24 flights)
- 6–9 PM76%(336 flights)
70%
May
Jun 53% → May 70% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 53% | 30 |
| July 2025 | 58% | 31 |
| August 2025 | 74% | 31 |
| September 2025 | 80% | 30 |
| October 2025 | 81% | 31 |
| November 2025 | 79% | 28 |
| December 2025 | 90% | 31 |
| January 2026 | 90% | 30 |
| February 2026 | 86% | 28 |
| March 2026 | 90% | 30 |
| April 2026 | 67% | 30 |
| May 2026 | 70% | 30 |
- Departures on time
- 73%
- Diverted
- 0.3%
- Flights flown
- 360
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 362 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.