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Flight Reliability

AS 2015 · Alaska Airlines

Spokane → Boise (GEG–BOI)

95
Nerd Approved
WanderNerd Reliability Score
96%
Arrive within 15 minutes
8 min early
Average arrival delay
1.8%
Cancelled
14 min early
Median arrival delay

Based on 341 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 3–6 AM arrived on time 100% of the time, against 94% between 6–9 AM.

Skip Tuesday if you can.

AS 2015 arrived on time 100% of the time on Saturdays. On Tuesdays: 92%.

A bit ahead of the GEG–BOI route.

AS 2015 arrived on time 96% of the time, versus 91% across the GEG–BOI route.

Well ahead of the Alaska Airlines network.

AS 2015 arrived on time 96% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon98%(49 flights)
  • Tue92%(50 flights)
  • Wed94%(49 flights)
  • Thu96%(48 flights)
  • Fri96%(47 flights)
  • Sat100%(41 flights)
  • Sun94%(50 flights)
On-time by departure window
  • 3–6 AM100%(67 flights)
  • 6–9 AM94%(267 flights)
On-time trend by month
92%
May

Jun 90% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202590%30
July 202593%29
August 202597%30
September 2025100%30
October 202594%31
November 2025100%29
December 202597%31
January 202692%26
February 2026100%27
March 202693%30
April 202697%29
May 202692%12
Departures on time
96%
Diverted
0.3%
Flights flown
334
Months covered
12

Same route, other flights

Keep nerding

Based on 341 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.