Which departure time was most reliable for PHL to IAH?
Among qualifying PHL-to-IAH departure window results, Early morning had the highest on-time rate: 84.3% of 579 flights. Night was lowest at 59.5% across 74 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 579 | 84.3% | 9.3% | 1.2% |
| Late morning | 208 | 78.8% | 12.0% | 2.4% |
| Afternoon | 413 | 80.6% | 11.9% | 1.0% |
| Evening | 555 | 72.8% | 17.5% | 2.9% |
| Night | 74 | 59.5% | 25.7% | 5.4% |
Which weekday was most reliable for PHL to IAH?
Among qualifying PHL-to-IAH weekday results, Tuesday had the highest on-time rate: 85.2% of 243 flights. Sunday was lowest at 73.1% across 264 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 300 | 76.0% | 15.3% | 3.3% |
| Tuesday | 243 | 85.2% | 9.5% | 1.2% |
| Wednesday | 250 | 81.2% | 12.0% | 1.2% |
| Thursday | 278 | 76.6% | 14.7% | 1.8% |
| Friday | 292 | 78.4% | 12.0% | 0.7% |
| Saturday | 202 | 79.2% | 13.4% | 1.0% |
| Sunday | 264 | 73.1% | 15.9% | 4.2% |
Which airline was most reliable for PHL to IAH?
Among qualifying PHL-to-IAH airline results, United Airlines had the highest on-time rate: 85.9% of 891 flights. Spirit Airlines was lowest at 57.1% across 42 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 891 | 85.9% | 8.2% | 1.0% |
| American Airlines | 714 | 71.8% | 17.9% | 3.1% |
| PSA Airlines | 92 | 73.9% | 15.2% | 2.2% |
| Frontier Airlines | 70 | 67.1% | 20.0% | 1.4% |
| Spirit Airlines | 42 | 57.1% | 28.6% | 4.8% |
| Republic Airways | 20 | 80.0% | 15.0% | 0.0% |
Which month was most reliable for PHL to IAH?
Among qualifying PHL-to-IAH month results, February 2026 had the highest on-time rate: 88.2% of 127 flights. July 2025 was lowest at 64.2% across 151 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 151 | 64.2% | 25.8% | 4.0% |
| August 2025 | 142 | 67.6% | 19.0% | 1.4% |
| September 2025 | 137 | 81.0% | 14.6% | 0.0% |
| October 2025 | 161 | 84.5% | 11.8% | 0.6% |
| November 2025 | 150 | 85.3% | 10.0% | 1.3% |
| December 2025 | 157 | 77.1% | 11.5% | 1.3% |
| January 2026 | 145 | 77.9% | 9.7% | 6.2% |
| February 2026 | 127 | 88.2% | 3.1% | 3.9% |
| March 2026 | 147 | 85.0% | 8.2% | 2.0% |
| April 2026 | 159 | 84.9% | 10.1% | 0.6% |
| May 2026 | 166 | 75.3% | 15.7% | 0.0% |
| June 2026 | 187 | 71.7% | 18.2% | 2.7% |
What drove PHL to IAH delay minutes?
Late aircraft was the largest recorded PHL-to-IAH delay category, accounting for 37.1% of 29,423 BTS-attributed delay minutes during July 2025–June 2026.
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