Boise (BOI) to Spokane (GEG): On-Time Performance
Data through May 2026
Boise (BOI) to Spokane (GEG) is a thinner route than most in this dataset — 306 departures over the past year, roughly 6 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 83% arrived on time.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.2%
- Flights/day
- 0.84
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 287 mi
Monthly on-time trend
Best time to fly from BOI to GEG
Aim for departures around 1 p.m. (88% on-time); avoid 5 p.m. departures (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 78% | 13 min |
| Tuesday | 87% | 8 min |
| Wednesday | 86% | 10 min |
| Thursdaybest | 88% | 10 min |
| Friday | 82% | 11 min |
| Saturday | 82% | 15 min |
| Sunday | 79% | 11 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations25%
- National airspace system16%
- Weather3%
Frequently asked questions
- How often are flights from BOI to GEG delayed?
- 17% of BOI–GEG flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 11 minutes.
- What is the best time of day to fly from BOI to GEG?
- Departures around 1 p.m. have the best record (88% on-time), while departures around 5 p.m. have the worst (70%). 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 9m over 287 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are BOI to GEG flights cancelled?
- 0.2% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from BOI to GEG?
- June 2024 was the roughest month in this dataset, with only 72% of arrivals on time. The best was December 2025 at 97%. If your dates are flexible, that 25-point gap is worth planning around.
Explore related pages
More routes from BOI
Other ways to fly to Spokane (GEG)
Related guides
Based on 922 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.