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Flight Reliability

AS 2373 · Alaska Airlines

Boise → Spokane (BOI–GEG)

100
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
7 min early
Average arrival delay
0.4%
Cancelled
12 min early
Median arrival delay

Based on 231 historical flights. Data through May 2026.

What the data says

9 PM–12 AM has a slight edge.

Departures between 9 PM–12 AM arrived on time 100% of the time, against 94% between 6–9 AM.

Saturdays have been rough.

AS 2373 arrived on time 100% of the time on Wednesdays and just 85% on Saturdays. That gap is worth planning around.

A bit ahead of the BOI–GEG route.

AS 2373 arrived on time 94% of the time, versus 88% across the BOI–GEG route.

Better than the Alaska Airlines network average.

AS 2373 arrived on time 94% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon88%(33 flights)
  • Tue94%(34 flights)
  • Wed100%(35 flights)
  • Thu97%(34 flights)
  • Fri97%(34 flights)
  • Sat85%(26 flights)
  • Sun94%(34 flights)
On-time by departure window
  • 6–9 AM94%(220 flights)
  • 9 PM–12 AM100%(10 flights)
On-time trend by month
94%
May

Jun 100% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%10
August 2025100%12
September 2025100%30
December 202590%30
January 202682%27
February 202696%27
March 202693%30
April 202697%30
May 202694%31
Departures on time
94%
Diverted
0%
Flights flown
230
Months covered
10

Same route, other flights

Keep nerding

Based on 231 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.