BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
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GEG→BOI

Spokane, WA (GEG) to Boise, ID (BOI) flight delay odds

89.0% of 336 official scheduled GEG-to-BOI flights arrived on time; 7.4% arrived at least 30 minutes late and 0.3% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALLower disruption
89.0%arrived on time
7.4%30+ min late
0.3%cancelled
336scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late3.6%all scheduled flights
120+ minutes late1.2%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival-3.7 mincompleted flights

Which departure time was most reliable for GEG to BOI?

Among qualifying GEG-to-BOI departure window results, Late morning had the highest on-time rate: 92.9% of 56 flights. Afternoon was lowest at 88.8% across 259 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning5692.9%5.4%0.0%
Afternoon25988.8%7.3%0.4%

Which weekday was most reliable for GEG to BOI?

Among qualifying GEG-to-BOI weekday results, Monday had the highest on-time rate: 93.8% of 48 flights. Sunday was lowest at 83.3% across 48 flights.

DayFlightsOn time30+ minCancelled
Monday4893.8%2.1%0.0%
Tuesday4989.8%6.1%0.0%
Wednesday4889.6%4.2%2.1%
Thursday4787.2%6.4%0.0%
Friday4885.4%14.6%0.0%
Saturday4893.8%6.2%0.0%
Sunday4883.3%12.5%0.0%

Which airline was most reliable for GEG to BOI?

Only SkyWest Airlines met the GEG-to-BOI airline threshold: 89.0% of 336 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines33689.0%7.4%0.3%

Which month was most reliable for GEG to BOI?

Among qualifying GEG-to-BOI month results, November 2025 had the highest on-time rate: 100.0% of 29 flights. January 2026 was lowest at 74.2% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20253180.6%6.5%0.0%
August 20253193.5%6.5%0.0%
September 20253090.0%3.3%0.0%
October 20253190.3%6.5%0.0%
November 202529100.0%0.0%0.0%
December 20253187.1%12.9%0.0%
January 20263174.2%16.1%3.2%
February 20262896.4%3.6%0.0%
March 20263193.5%6.5%0.0%
April 20263093.3%6.7%0.0%
June 20262181.0%14.3%0.0%

What drove GEG to BOI delay minutes?

Late aircraft was the largest recorded GEG-to-BOI delay category, accounting for 66.1% of 1,923 BTS-attributed delay minutes during July 2025–June 2026.

Airline19.6%
Late aircraft66.1%
National airspace7.6%
Weather6.7%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.