Which departure time was most reliable for DFW to SJU?
Among qualifying DFW-to-SJU departure window results, Late morning had the highest on-time rate: 81.6% of 87 flights. Evening was lowest at 53.2% across 173 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 376 | 78.5% | 9.8% | 4.0% |
| Late morning | 87 | 81.6% | 12.6% | 0.0% |
| Afternoon | 147 | 61.2% | 26.5% | 2.0% |
| Evening | 173 | 53.2% | 32.9% | 1.7% |
| Night | 206 | 58.7% | 25.2% | 1.9% |
Which weekday was most reliable for DFW to SJU?
Among qualifying DFW-to-SJU weekday results, Thursday had the highest on-time rate: 77.5% of 151 flights. Tuesday was lowest at 60.5% across 119 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 149 | 66.4% | 24.2% | 1.3% |
| Tuesday | 119 | 60.5% | 22.7% | 2.5% |
| Wednesday | 120 | 74.2% | 15.0% | 0.8% |
| Thursday | 151 | 77.5% | 13.9% | 0.0% |
| Friday | 149 | 65.8% | 23.5% | 2.0% |
| Saturday | 147 | 62.6% | 17.7% | 6.1% |
| Sunday | 154 | 66.2% | 21.4% | 4.5% |
Which airline was most reliable for DFW to SJU?
Among qualifying DFW-to-SJU airline results, Spirit Airlines had the highest on-time rate: 72.8% of 250 flights. Frontier Airlines was lowest at 54.1% across 37 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 702 | 66.5% | 20.9% | 1.6% |
| Spirit Airlines | 250 | 72.8% | 15.6% | 4.4% |
| Frontier Airlines | 37 | 54.1% | 27.0% | 8.1% |
Which month was most reliable for DFW to SJU?
Among qualifying DFW-to-SJU month results, September 2025 had the highest on-time rate: 89.7% of 39 flights. June 2026 was lowest at 48.3% across 60 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 97 | 60.8% | 26.8% | 0.0% |
| August 2025 | 64 | 59.4% | 32.8% | 1.6% |
| September 2025 | 39 | 89.7% | 7.7% | 0.0% |
| October 2025 | 48 | 87.5% | 6.2% | 0.0% |
| November 2025 | 77 | 84.4% | 10.4% | 0.0% |
| December 2025 | 110 | 60.0% | 28.2% | 0.9% |
| January 2026 | 102 | 56.9% | 18.6% | 15.7% |
| February 2026 | 84 | 83.3% | 7.1% | 2.4% |
| March 2026 | 113 | 61.1% | 20.4% | 3.5% |
| April 2026 | 105 | 72.4% | 17.1% | 1.0% |
| May 2026 | 90 | 68.9% | 18.9% | 0.0% |
| June 2026 | 60 | 48.3% | 35.0% | 0.0% |
What drove DFW to SJU delay minutes?
Airline was the largest recorded DFW-to-SJU delay category, accounting for 41.9% of 20,476 BTS-attributed delay minutes during July 2025–June 2026.
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