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Flight Reliability

AS 2137 · Alaska Airlines

Boise → Spokane (BOI–GEG)97% of its flights flew this route. The rest (LAX–LAS) are included in these numbers.

86
Pretty Reliable
WanderNerd Reliability Score
84%
Arrive within 15 minutes
1 min
Average arrival delay
1.7%
Cancelled
8 min early
Median arrival delay

Based on 346 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

AS 2137 departing between 3–6 PM arrived on time 95% of the time, versus 69% between 9 PM–12 AM.

Monday is the weak spot.

AS 2137 arrived on time 92% of the time on Tuesdays. On Mondays: 81%.

A bit behind the BOI–GEG route.

AS 2137 arrived on time 84% of the time, versus 88% across the BOI–GEG route.

A bit ahead of the Alaska Airlines network.

AS 2137 arrived on time 84% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon81%(52 flights)
  • Tue92%(47 flights)
  • Wed83%(46 flights)
  • Thu86%(49 flights)
  • Fri82%(50 flights)
  • Sat87%(45 flights)
  • Sun82%(51 flights)
On-time by departure window
  • 3–6 PM95%(57 flights)
  • 6–9 PM85%(238 flights)
  • 9 PM–12 AM69%(45 flights)
On-time trend by month
58%
May

Jun 80% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202574%31
August 202590%31
September 202590%30
October 202593%30
November 202583%29
December 202581%31
January 202677%22
February 202696%24
March 2026100%29
April 202686%29
May 202658%24
Departures on time
82%
Diverted
0%
Flights flown
340
Months covered
12

Same route, other flights

Keep nerding

Based on 346 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.