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Flight Reliability

AS 3418 · Alaska Airlines

Boise → San Jose (BOI–SJC)

98
Nerd Approved
WanderNerd Reliability Score
92%
Arrive within 15 minutes
5 min early
Average arrival delay
0.3%
Cancelled
11 min early
Median arrival delay

Based on 299 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 9 AM–12 PM arrived on time 93% of the time, against 88% between 6–9 AM.

Skip Tuesday if you can.

AS 3418 arrived on time 98% of the time on Thursdays. On Tuesdays: 86%.

A bit ahead of the BOI–SJC route.

AS 3418 arrived on time 92% of the time, versus 85% across the BOI–SJC route.

Better than the Alaska Airlines network average.

AS 3418 arrived on time 92% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon93%(43 flights)
  • Tue86%(43 flights)
  • Wed96%(44 flights)
  • Thu98%(43 flights)
  • Fri88%(41 flights)
  • Sat93%(41 flights)
  • Sun88%(43 flights)
On-time by departure window
  • 6–9 AM88%(77 flights)
  • 9 AM–12 PM93%(221 flights)
On-time trend by month
97%
Apr

Jun 97% → Apr 97% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202597%30
July 202584%31
August 202597%31
September 202587%30
October 202594%31
November 202590%29
December 202590%31
January 202697%31
February 202682%11
March 202686%14
April 202697%29
Departures on time
94%
Diverted
0%
Flights flown
298
Months covered
11

Same route, other flights

Keep nerding

Based on 299 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.