GEG to BOI flight delays & on-time performance
Nonstop flights from Spokane International Airport to Boise Air Terminal/Gowen Field · 287 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at GEG or BOI right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Spokane (GEG) to Boise (BOI) arrived on time 90% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.3% were cancelled, and 4% arrived an hour or more late.
- SkyWest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (93% on time); around 7pm did worst (85%).
- Monday was the most reliable day to fly (96% on time) and Sunday the least (81%).
- The largest source of delay minutes was late-arriving aircraft (69%).
Which airline is most on time from GEG to BOI?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| SkyWest AirlinesRegional airline operating flights for United Express, Delta Connection, American Eagle and Alaska. | 90% | 0.3% | 6 min | 3.6% | 336 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am93%56 flights
- 4pm90%228 flights
- 7pm85%52 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday96%0.0% cancelled
- Tuesday92%0.0% cancelled
- Wednesday91%2.1% cancelled
- Thursday89%0.0% cancelled
- Friday88%0.0% cancelled
- Saturday92%0.0% cancelled
- Sunday81%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft69%
- Airline (crew, maintenance, cleaning, fueling)17%
- Air traffic control & airport congestion7%
- Extreme weather7%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
GEG to BOI: common questions
- How often are GEG to BOI flights on time?
- 90% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Spokane to Boise cancelled?
- 0.3% of scheduled flights were cancelled (1 of 336).
- How long are typical delays?
- Across all flights the average arrival delay was 6 min (early arrivals count as zero). Flights that were late arrived 56 min behind schedule on average, and 3.6% of flights were an hour or more late.
- How long is taxi time at GEG?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: BOI to GEG — 91% on time
More flights from Spokane
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: GEG → BOI, nonstop flights by US airlines that report to the DOT. How we calculate this.