Which departure time was most reliable for ORD to BTV?
Among qualifying ORD-to-BTV departure window results, Early morning had the highest on-time rate: 83.1% of 71 flights. Evening was lowest at 59.1% across 552 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 71 | 83.1% | 9.9% | 0.0% |
| Late morning | 357 | 79.0% | 14.8% | 0.6% |
| Afternoon | 264 | 64.8% | 23.9% | 1.5% |
| Evening | 552 | 59.1% | 25.7% | 3.3% |
Which weekday was most reliable for ORD to BTV?
Among qualifying ORD-to-BTV weekday results, Tuesday had the highest on-time rate: 74.0% of 177 flights. Sunday was lowest at 62.0% across 179 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 180 | 67.2% | 21.1% | 3.9% |
| Tuesday | 177 | 74.0% | 16.4% | 0.6% |
| Wednesday | 172 | 70.9% | 18.6% | 3.5% |
| Thursday | 180 | 65.0% | 24.4% | 1.7% |
| Friday | 180 | 66.7% | 22.8% | 0.6% |
| Saturday | 177 | 65.5% | 19.2% | 1.1% |
| Sunday | 179 | 62.0% | 26.8% | 2.2% |
Which airline was most reliable for ORD to BTV?
Among qualifying ORD-to-BTV airline results, Envoy Air had the highest on-time rate: 82.5% of 63 flights. SkyWest Airlines was lowest at 59.3% across 481 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| United Airlines | 683 | 71.6% | 18.4% | 0.7% |
| SkyWest Airlines | 481 | 59.3% | 27.2% | 3.7% |
| Envoy Air | 63 | 82.5% | 7.9% | 0.0% |
| Republic Airways | 18 | 66.7% | 22.2% | 5.6% |
Which month was most reliable for ORD to BTV?
Among qualifying ORD-to-BTV month results, September 2025 had the highest on-time rate: 79.5% of 122 flights. July 2025 was lowest at 51.2% across 121 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 121 | 51.2% | 41.3% | 1.7% |
| August 2025 | 115 | 65.2% | 25.2% | 4.3% |
| September 2025 | 122 | 79.5% | 13.1% | 0.0% |
| October 2025 | 163 | 73.6% | 19.0% | 0.0% |
| November 2025 | 60 | 70.0% | 20.0% | 1.7% |
| December 2025 | 76 | 65.8% | 25.0% | 0.0% |
| January 2026 | 67 | 65.7% | 19.4% | 3.0% |
| February 2026 | 59 | 64.4% | 18.6% | 0.0% |
| March 2026 | 62 | 66.1% | 16.1% | 1.6% |
| April 2026 | 137 | 64.2% | 21.9% | 1.5% |
| May 2026 | 144 | 76.4% | 11.1% | 1.4% |
| June 2026 | 119 | 59.7% | 24.4% | 7.6% |
What drove ORD to BTV delay minutes?
Airline was the largest recorded ORD-to-BTV delay category, accounting for 36.6% of 28,219 BTS-attributed delay minutes during July 2025–June 2026.
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