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Route Reliability

Boise → San Jose

BOI–SJC · 523 miles · Boise Airport to San José Mineta International Airport

93
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
0 min
Average arrival delay
0.1%
Cancelled
689
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.Alaska Airlines93%357 flights
  2. 2.Southwest Airlines77%332 flights

What the data says

Morning-you made the right choice.

BOI–SJC flights departing between 9 AM–12 PM arrived on time 94% of the time, versus 50% between 6–9 PM.

Friday is doing you no favors.

BOI–SJC flights arrived on time 95% of the time on Wednesdays and just 78% on Fridays. That gap is worth planning around.

Alaska Airlines has a clear lead on this route.

Alaska Airlines arrived on time 93% of the time on this route; Southwest Airlines managed 77%.

It basically never cancels.

Out of 689 scheduled flights, only 0.1% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon79%(107 flights)
  • Tue87%(95 flights)
  • Wed95%(93 flights)
  • Thu83%(104 flights)
  • Fri78%(106 flights)
  • Sat91%(65 flights)
  • Sun88%(118 flights)
On-time by departure window
  • 6–9 AM88%(77 flights)
  • 9 AM–12 PM94%(300 flights)
  • 12–3 PM90%(166 flights)
  • 3–6 PM63%(131 flights)
  • 6–9 PM50%(14 flights)
On-time trend by month
87%
May

Jun 83% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%60
July 202573%62
August 202586%62
September 202585%60
October 202585%58
November 202585%61
December 202585%71
January 202693%60
February 202690%52
March 202690%49
April 202685%46
May 202687%47

Same trip, other airports

Keep nerding

Based on 689 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.