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Route Reliability

Boise → Spokane

BOI–GEG · 287 miles · Boise Airport to Spokane International Airport

91
Nerd Approved
WanderNerd Reliability Score
88%
Arrive within 15 minutes
2 min early
Average arrival delay
1.0%
Cancelled
1,322
Flights in the data

Data through May 2026.

Alaska Airlines is the only airline in this data on this route, arriving on time 88% of the time across 1,322 flights. No comparison to make.

What the data says

The 3–6 PM departure wins.

BOI–GEG flights departing between 3–6 PM arrived on time 95% of the time, versus 80% between 9 PM–12 AM.

Tuesday comes out ahead.

A small edge: 90% on time on Tuesdays against 86% on Mondays.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon86%(199 flights)
  • Tue90%(190 flights)
  • Wed89%(187 flights)
  • Thu89%(194 flights)
  • Fri87%(192 flights)
  • Sat89%(147 flights)
  • Sun86%(199 flights)
On-time by departure window
  • 6–9 AM94%(358 flights)
  • 12–3 PM87%(363 flights)
  • 3–6 PM95%(58 flights)
  • 6–9 PM86%(259 flights)
  • 9 PM–12 AM80%(270 flights)
On-time trend by month
82%
May

Jun 86% → May 82% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202586%116
July 202586%118
August 202591%119
September 202591%116
October 202590%115
November 202591%97
December 202589%93
January 202677%100
February 202688%103
March 202692%118
April 202690%115
May 202682%98

Keep nerding

Based on 1,322 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.