Which departure time was most reliable for SLC to BOI?
Among qualifying SLC-to-BOI departure window results, Afternoon had the highest on-time rate: 90.4% of 365 flights. Night was lowest at 81.5% across 400 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 297 | 88.9% | 5.7% | 1.7% |
| Late morning | 423 | 84.2% | 7.1% | 0.7% |
| Afternoon | 365 | 90.4% | 6.0% | 0.3% |
| Evening | 257 | 88.7% | 6.6% | 0.0% |
| Night | 400 | 81.5% | 11.2% | 1.2% |
Which weekday was most reliable for SLC to BOI?
Among qualifying SLC-to-BOI weekday results, Tuesday had the highest on-time rate: 90.9% of 254 flights. Friday was lowest at 83.9% across 248 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 250 | 85.2% | 6.0% | 0.8% |
| Tuesday | 254 | 90.9% | 5.1% | 0.4% |
| Wednesday | 246 | 87.4% | 8.9% | 0.0% |
| Thursday | 244 | 84.0% | 9.4% | 0.8% |
| Friday | 248 | 83.9% | 7.3% | 1.2% |
| Saturday | 249 | 88.4% | 7.2% | 0.8% |
| Sunday | 251 | 84.5% | 8.8% | 1.6% |
Which airline was most reliable for SLC to BOI?
Among qualifying SLC-to-BOI airline results, SkyWest Airlines had the highest on-time rate: 92.3% of 519 flights. Delta Air Lines was lowest at 83.8% across 1,223 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Delta Air Lines | 1,223 | 83.8% | 9.0% | 1.1% |
| SkyWest Airlines | 519 | 92.3% | 4.0% | 0.2% |
Which month was most reliable for SLC to BOI?
Among qualifying SLC-to-BOI month results, June 2026 had the highest on-time rate: 89.1% of 147 flights. December 2025 was lowest at 81.2% across 149 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 150 | 86.0% | 8.7% | 0.0% |
| August 2025 | 155 | 86.5% | 9.0% | 0.0% |
| September 2025 | 150 | 87.3% | 5.3% | 0.0% |
| October 2025 | 155 | 89.0% | 6.5% | 0.0% |
| November 2025 | 147 | 85.7% | 7.5% | 3.4% |
| December 2025 | 149 | 81.2% | 9.4% | 2.0% |
| January 2026 | 124 | 81.5% | 6.5% | 1.6% |
| February 2026 | 112 | 88.4% | 8.9% | 0.0% |
| March 2026 | 148 | 88.5% | 8.1% | 0.0% |
| April 2026 | 150 | 84.0% | 8.7% | 0.7% |
| May 2026 | 155 | 88.4% | 5.2% | 0.0% |
| June 2026 | 147 | 89.1% | 6.8% | 2.0% |
What drove SLC to BOI delay minutes?
Airline was the largest recorded SLC-to-BOI delay category, accounting for 66.0% of 12,789 BTS-attributed delay minutes during July 2025–June 2026.
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