Boise (BOI) to Spokane (GEG): On-Time Performance
Data through July 2026
Boise (BOI) to Spokane (GEG) is a thinner route than most in this dataset — 296 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 85% arrived on time, comfortably above the national average of 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 0.81
- last 12 months
- Duration
- 1h 10m
- scheduled
- Distance
- 287 mi
Monthly on-time trend
Best time to fly from BOI to GEG
Aim for departures around 7 a.m. (100% on-time); avoid 5 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 12 min |
| Tuesday | 87% | 8 min |
| Wednesday | 87% | 10 min |
| Thursdaybest | 88% | 10 min |
| Friday | 86% | 8 min |
| Saturday | 87% | 13 min |
| Sunday | 81% | 10 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft60%
- Airline operations22%
- National airspace system16%
- Weather3%
Frequently asked questions
- How often are flights from BOI to GEG delayed?
- 15% of BOI–GEG flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from BOI to GEG?
- Departures around 7 a.m. have the best record (100% on-time), while departures around 5 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BOI to GEG?
- The scheduled BOI–GEG flight time averages 1h 10m over 287 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are BOI to GEG flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from BOI to GEG?
- December 2024 was the roughest month in this dataset, with only 74% of arrivals on time. The best was June 2026 at 100%. If your dates are flexible, that 26-point gap is worth planning around.
Explore related pages
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Related guides
Based on 881 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.