Which departure time was most reliable for DAL to SJC?
Among qualifying DAL-to-SJC departure window results, Early morning had the highest on-time rate: 89.0% of 73 flights. Night was lowest at 52.2% across 69 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 73 | 89.0% | 6.8% | 0.0% |
| Afternoon | 50 | 66.0% | 22.0% | 2.0% |
| Evening | 246 | 61.0% | 21.1% | 2.8% |
| Night | 69 | 52.2% | 20.3% | 1.4% |
Which weekday was most reliable for DAL to SJC?
Among qualifying DAL-to-SJC weekday results, Friday had the highest on-time rate: 71.0% of 69 flights. Sunday was lowest at 54.3% across 70 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 69 | 63.8% | 20.3% | 0.0% |
| Tuesday | 62 | 66.1% | 17.7% | 4.8% |
| Wednesday | 61 | 65.6% | 19.7% | 0.0% |
| Thursday | 70 | 68.6% | 15.7% | 1.4% |
| Friday | 69 | 71.0% | 14.5% | 1.4% |
| Saturday | 57 | 70.2% | 15.8% | 3.5% |
| Sunday | 70 | 54.3% | 25.7% | 2.9% |
Which airline was most reliable for DAL to SJC?
Only Southwest Airlines met the DAL-to-SJC airline threshold: 65.5% of 458 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Southwest Airlines | 458 | 65.5% | 18.6% | 2.0% |
Which month was most reliable for DAL to SJC?
Among qualifying DAL-to-SJC month results, September 2025 had the highest on-time rate: 83.0% of 47 flights. June 2026 was lowest at 16.7% across 30 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 62 | 64.5% | 14.5% | 3.2% |
| August 2025 | 49 | 81.6% | 14.3% | 0.0% |
| September 2025 | 47 | 83.0% | 4.3% | 0.0% |
| October 2025 | 56 | 78.6% | 17.9% | 1.8% |
| November 2025 | 32 | 75.0% | 12.5% | 3.1% |
| December 2025 | 31 | 67.7% | 12.9% | 0.0% |
| January 2026 | 31 | 71.0% | 6.5% | 6.5% |
| February 2026 | 28 | 50.0% | 25.0% | 0.0% |
| March 2026 | 31 | 77.4% | 12.9% | 0.0% |
| April 2026 | 30 | 50.0% | 30.0% | 3.3% |
| May 2026 | 31 | 38.7% | 35.5% | 6.5% |
| June 2026 | 30 | 16.7% | 53.3% | 0.0% |
What drove DAL to SJC delay minutes?
Late aircraft was the largest recorded DAL-to-SJC delay category, accounting for 62.3% of 7,324 BTS-attributed delay minutes during July 2025–June 2026.
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