Which departure time was most reliable for PHX to BOS?
Among qualifying PHX-to-BOS departure window results, Late morning had the highest on-time rate: 80.4% of 189 flights. Afternoon was lowest at 71.6% across 962 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 175 | 78.9% | 12.0% | 0.0% |
| Late morning | 189 | 80.4% | 9.5% | 2.6% |
| Afternoon | 962 | 71.6% | 17.7% | 1.9% |
| Night | 694 | 79.4% | 12.0% | 2.0% |
Which weekday was most reliable for PHX to BOS?
Among qualifying PHX-to-BOS weekday results, Saturday had the highest on-time rate: 81.9% of 270 flights. Thursday was lowest at 70.5% across 305 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 295 | 78.0% | 12.5% | 4.1% |
| Tuesday | 274 | 80.3% | 15.0% | 1.1% |
| Wednesday | 271 | 79.0% | 12.5% | 0.4% |
| Thursday | 305 | 70.5% | 17.0% | 0.0% |
| Friday | 293 | 71.0% | 18.8% | 1.4% |
| Saturday | 270 | 81.9% | 10.0% | 0.7% |
| Sunday | 314 | 71.3% | 14.6% | 4.8% |
Which airline was most reliable for PHX to BOS?
Among qualifying PHX-to-BOS airline results, American Airlines had the highest on-time rate: 77.2% of 1,314 flights. JetBlue Airways was lowest at 69.6% across 280 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| American Airlines | 1,314 | 77.2% | 13.5% | 1.6% |
| Delta Air Lines | 428 | 75.5% | 14.7% | 2.3% |
| JetBlue Airways | 280 | 69.6% | 18.2% | 2.1% |
Which month was most reliable for PHX to BOS?
Among qualifying PHX-to-BOS month results, August 2025 had the highest on-time rate: 85.4% of 137 flights. October 2025 was lowest at 63.9% across 166 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 160 | 69.4% | 19.4% | 2.5% |
| August 2025 | 137 | 85.4% | 12.4% | 0.0% |
| September 2025 | 132 | 72.0% | 17.4% | 0.8% |
| October 2025 | 166 | 63.9% | 25.3% | 0.0% |
| November 2025 | 158 | 71.5% | 19.0% | 1.3% |
| December 2025 | 179 | 81.6% | 12.3% | 1.1% |
| January 2026 | 169 | 71.0% | 11.8% | 8.3% |
| February 2026 | 163 | 70.6% | 11.7% | 8.0% |
| March 2026 | 198 | 76.3% | 11.1% | 0.5% |
| April 2026 | 211 | 82.5% | 13.3% | 0.0% |
| May 2026 | 201 | 83.1% | 10.0% | 0.0% |
| June 2026 | 148 | 79.1% | 12.2% | 0.0% |
What drove PHX to BOS delay minutes?
Late aircraft was the largest recorded PHX-to-BOS delay category, accounting for 41.9% of 35,504 BTS-attributed delay minutes during July 2025–June 2026.
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