Best Time to Fly BOI to GEG: On-Time Stats by Hour & Airline
Boise Air Terminal → Spokane International
Data through July 2026 · Last updated October 18, 2026
296 flights were scheduled from Boise (BOI) to Spokane (GEG) in the last 12 months, and 91.2% of those that flew arrived on time, 13.5 points above the US average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (91% on time) and January the worst month (77%).
The cancellation rate was 0.3% (US average 1.8%).
BOI to GEG on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 91.2% | 70 min | 0.3% | 296 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOI to GEG
On-time arrival % by scheduled departure hour (local time), 770 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 100.0% | 0.0% | 51 |
| 9am–10am | Limited data | 16 | |
| 10am–11am | 87.1% | 1.0% | 102 |
| 12pm–1pm | Limited data | 16 | |
| 1pm–2pm | 89.2% | 0.0% | 186 |
| 2pm–3pm | 86.2% | 0.4% | 248 |
| 5pm–6pm | 73.3% | 0.0% | 60 |
| 6pm–7pm | Limited data | 23 | |
| 7pm–8pm | Limited data | 10 | |
| 8pm–9pm | 83.7% | 0.0% | 43 |
| 9pm–10pm | Limited data | 15 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOI to GEG
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 29 | ||
| Summer peak (Jun 15 - Aug 15) | 83.0% | -4.4 pts | 0.0% | 165 |
| All other days | 87.4% | — | 0.4% | 552 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).