Historical on-time performance
Boise to San Jose
Flights on BOI–SJC arrive on time 84% of the time over the last 12 months.
based on 439 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- SkyWest AirlinesOn-time91%Medianon timep9010 minCancel0.4%Flights245
- Southwest AirlinesOn-time75%Medianon timep9040 minCancel0.0%Flights194
Why flights run late
Delay causes
- Airline24%
- Weather0%
- Air traffic (NAS)2%
- Late aircraft74%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 1 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BOI → SJC
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 94% on time.
- Mornings94% on time · p90 5 min · 602 flights
- Middays89% on time · p90 15 min · 819 flights
- Afternoons80% on time · p90 25 min · 428 flights
- Evenings77% on time · p90 30 min · 141 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 93% on time.
- Saturdays93% on time · p90 5 min · 208 flights
- Wednesdays93% on time · p90 10 min · 269 flights
- Tuesdays90% on time · p90 10 min · 271 flights
- Sundays90% on time · p90 10 min · 308 flights
- Thursdays87% on time · p90 20 min · 312 flights
- Fridays83% on time · p90 25 min · 314 flights
- Mondays82% on time · p90 25 min · 309 flights
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