Which departure time was most reliable for SJC to ATL?
Among qualifying SJC-to-ATL departure window results, Early morning had the highest on-time rate: 92.6% of 243 flights. Night was lowest at 91.1% across 293 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 243 | 92.6% | 3.3% | 1.6% |
| Afternoon | 364 | 91.8% | 5.8% | 0.8% |
| Night | 293 | 91.1% | 5.1% | 1.7% |
Which weekday was most reliable for SJC to ATL?
Among qualifying SJC-to-ATL weekday results, Wednesday had the highest on-time rate: 95.3% of 129 flights. Sunday was lowest at 88.0% across 133 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 133 | 94.7% | 2.3% | 1.5% |
| Tuesday | 135 | 91.1% | 5.9% | 0.7% |
| Wednesday | 129 | 95.3% | 1.6% | 0.0% |
| Thursday | 131 | 94.7% | 3.1% | 0.0% |
| Friday | 133 | 88.0% | 7.5% | 3.0% |
| Saturday | 106 | 90.6% | 5.7% | 2.8% |
| Sunday | 133 | 88.0% | 8.3% | 1.5% |
Which airline was most reliable for SJC to ATL?
Only Delta Air Lines met the SJC-to-ATL airline threshold: 91.8% of 900 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 900 | 91.8% | 4.9% | 1.3% |
Which month was most reliable for SJC to ATL?
Among qualifying SJC-to-ATL month results, September 2025 had the highest on-time rate: 98.7% of 77 flights. March 2026 was lowest at 83.9% across 62 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 88 | 89.8% | 8.0% | 0.0% |
| August 2025 | 82 | 89.0% | 6.1% | 2.4% |
| September 2025 | 77 | 98.7% | 1.3% | 0.0% |
| October 2025 | 85 | 96.5% | 2.4% | 0.0% |
| November 2025 | 73 | 90.4% | 4.1% | 4.1% |
| December 2025 | 88 | 88.6% | 5.7% | 2.3% |
| January 2026 | 62 | 88.7% | 9.7% | 1.6% |
| February 2026 | 56 | 98.2% | 1.8% | 0.0% |
| March 2026 | 62 | 83.9% | 12.9% | 1.6% |
| April 2026 | 60 | 98.3% | 0.0% | 1.7% |
| May 2026 | 81 | 90.1% | 4.9% | 1.2% |
| June 2026 | 86 | 90.7% | 2.3% | 1.2% |
What drove SJC to ATL delay minutes?
Airline was the largest recorded SJC-to-ATL delay category, accounting for 40.3% of 4,207 BTS-attributed delay minutes during July 2025–June 2026.
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