Which departure time was most reliable for ORD to GEG?
Among qualifying ORD-to-GEG departure window results, Early morning had the highest on-time rate: 90.0% of 50 flights. Afternoon was lowest at 43.5% across 62 flights.
| Departure window | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Early morning | 50 | 90.0% | 6.0% | 0.0% |
| Late morning | 498 | 65.9% | 21.9% | 0.6% |
| Afternoon | 62 | 43.5% | 38.7% | 3.2% |
| Evening | 134 | 54.5% | 31.3% | 3.0% |
Which weekday was most reliable for ORD to GEG?
Among qualifying ORD-to-GEG weekday results, Saturday had the highest on-time rate: 68.3% of 101 flights. Sunday was lowest at 56.9% across 109 flights.
| Day | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| Monday | 110 | 60.0% | 29.1% | 0.9% |
| Tuesday | 106 | 65.1% | 21.7% | 0.9% |
| Wednesday | 104 | 64.4% | 24.0% | 0.0% |
| Thursday | 105 | 62.9% | 21.0% | 1.9% |
| Friday | 109 | 67.9% | 22.9% | 1.8% |
| Saturday | 101 | 68.3% | 22.8% | 2.0% |
| Sunday | 109 | 56.9% | 25.7% | 0.9% |
Which airline was most reliable for ORD to GEG?
Among qualifying ORD-to-GEG airline results, SkyWest Airlines had the highest on-time rate: 63.6% of 390 flights. American Airlines was lowest at 63.4% across 352 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| SkyWest Airlines | 390 | 63.6% | 21.0% | 1.8% |
| American Airlines | 352 | 63.4% | 27.3% | 0.6% |
| United Airlines | 2 | 100.0% | 0.0% | 0.0% |
Which month was most reliable for ORD to GEG?
Among qualifying ORD-to-GEG month results, June 2026 had the highest on-time rate: 80.0% of 60 flights. March 2026 was lowest at 27.6% across 58 flights.
| Month | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| July 2025 | 92 | 73.9% | 17.4% | 0.0% |
| August 2025 | 79 | 67.1% | 21.5% | 1.3% |
| September 2025 | 72 | 79.2% | 13.9% | 0.0% |
| October 2025 | 66 | 69.7% | 18.2% | 0.0% |
| November 2025 | 59 | 64.4% | 20.3% | 3.4% |
| December 2025 | 55 | 52.7% | 38.2% | 0.0% |
| January 2026 | 40 | 70.0% | 20.0% | 0.0% |
| February 2026 | 43 | 37.2% | 39.5% | 0.0% |
| March 2026 | 58 | 27.6% | 48.3% | 6.9% |
| April 2026 | 59 | 64.4% | 22.0% | 3.4% |
| May 2026 | 61 | 59.0% | 34.4% | 0.0% |
| June 2026 | 60 | 80.0% | 5.0% | 0.0% |
What drove ORD to GEG delay minutes?
Late aircraft was the largest recorded ORD-to-GEG delay category, accounting for 37.4% of 18,310 BTS-attributed delay minutes during July 2025–June 2026.
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