Which departure time was most reliable for PIE to GRR?
Among qualifying PIE-to-GRR departure window results, Early morning had the highest on-time rate: 91.8% of 61 flights. Evening was lowest at 67.1% across 146 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 61 | 91.8% | 1.6% | 0.0% |
| Late morning | 91 | 79.1% | 13.2% | 0.0% |
| Afternoon | 83 | 77.1% | 8.4% | 0.0% |
| Evening | 146 | 67.1% | 24.0% | 0.7% |
Which weekday was most reliable for PIE to GRR?
Among qualifying PIE-to-GRR weekday results, Wednesday had the highest on-time rate: 93.5% of 46 flights. Sunday was lowest at 60.0% across 55 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 64 | 75.0% | 10.9% | 1.6% |
| Tuesday | 38 | 78.9% | 10.5% | 0.0% |
| Wednesday | 46 | 93.5% | 4.3% | 0.0% |
| Thursday | 55 | 72.7% | 16.4% | 0.0% |
| Friday | 64 | 73.4% | 14.1% | 0.0% |
| Saturday | 59 | 83.1% | 6.8% | 0.0% |
| Sunday | 55 | 60.0% | 36.4% | 0.0% |
Which airline was most reliable for PIE to GRR?
Only Allegiant Air met the PIE-to-GRR airline threshold: 76.1% of 381 scheduled flights arrived on time during July 2025–June 2026.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Allegiant Air | 381 | 76.1% | 14.4% | 0.3% |
Which month was most reliable for PIE to GRR?
Among qualifying PIE-to-GRR month results, October 2025 had the highest on-time rate: 86.7% of 30 flights. November 2025 was lowest at 61.5% across 26 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 28 | 67.9% | 25.0% | 0.0% |
| August 2025 | 21 | 66.7% | 23.8% | 0.0% |
| September 2025 | 18 | 83.3% | 16.7% | 0.0% |
| October 2025 | 30 | 86.7% | 10.0% | 0.0% |
| November 2025 | 26 | 61.5% | 19.2% | 0.0% |
| December 2025 | 41 | 78.0% | 19.5% | 0.0% |
| January 2026 | 34 | 70.6% | 11.8% | 0.0% |
| February 2026 | 36 | 77.8% | 11.1% | 0.0% |
| March 2026 | 51 | 78.4% | 11.8% | 2.0% |
| April 2026 | 39 | 82.1% | 12.8% | 0.0% |
| May 2026 | 30 | 73.3% | 10.0% | 0.0% |
| June 2026 | 27 | 81.5% | 7.4% | 0.0% |
What drove PIE to GRR delay minutes?
Late aircraft was the largest recorded PIE-to-GRR delay category, accounting for 55.0% of 5,030 BTS-attributed delay minutes during July 2025–June 2026.
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