Flight Reliability
DL 301 · Delta Air Lines
Atlanta → Los Angeles (ATL–LAX)
72
Usually Fine
WanderNerd Reliability Score
- 67%
- Arrive within 15 minutes
- 17 min
- Average arrival delay
- 0%
- Cancelled
- 5 min
- Median arrival delay
Based on 338 historical flights. Data through May 2026.
What the data says
Saturdays have been rough.
DL 301 arrived on time 78% of the time on Wednesdays and just 53% on Saturdays. That gap is worth planning around.
Lagging the ATL–LAX route.
DL 301 arrived on time 67% of the time, versus 79% across the ATL–LAX route.
Lagging the Delta Air Lines network.
DL 301 arrived on time 67% of the time, versus 81% across the Delta Air Lines network.
It basically never cancels.
Out of 338 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon67%(49 flights)
- Tue71%(49 flights)
- Wed78%(49 flights)
- Thu69%(48 flights)
- Fri75%(47 flights)
- Sat53%(47 flights)
- Sun57%(49 flights)
67%
Apr
Jun 60% → Apr 67% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 60% | 30 |
| July 2025 | 55% | 31 |
| August 2025 | 65% | 31 |
| September 2025 | 73% | 30 |
| October 2025 | 87% | 30 |
| November 2025 | 66% | 29 |
| December 2025 | 74% | 31 |
| January 2026 | 71% | 31 |
| February 2026 | 57% | 28 |
| March 2026 | 68% | 31 |
| April 2026 | 67% | 30 |
- Departures on time
- 64%
- Diverted
- 0%
- Flights flown
- 338
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 338 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.