Historical on-time performance
Sacramento to Boise
437 miData through May 2026Source: US DOT · BTS
Flights on SMF–BOI arrive on time 80% of the time over the last 12 months.
On-time rate80%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 851 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time80%Medianon timep9025 minCancel0.0%Flights851
Why flights run late
Delay causes
- Airline25%
- Weather1%
- Air traffic (NAS)8%
- Late aircraft65%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline72%
- Weather22%
- Air traffic (NAS)6%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 18 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 SMF → BOI
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 · 616 flights
- Middays89% on time · p90 15 min · 638 flights
- Evenings77% on time · p90 35 min · 299 flights
- Overnights73% on time · p90 45 min · 247 flights
- Afternoons72% on time · p90 40 min · 726 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 87% on time.
- Wednesdays87% on time · p90 20 min · 342 flights
- Tuesdays85% on time · p90 25 min · 349 flights
- Saturdays84% on time · p90 25 min · 300 flights
- Mondays82% on time · p90 25 min · 382 flights
- Sundays81% on time · p90 30 min · 396 flights
- Thursdays79% on time · p90 25 min · 374 flights
- Fridays78% on time · p90 30 min · 383 flights
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