Historical on-time performance
Sacramento to Boise
437 miData through Dec 2025Source: US DOT · BTS
Flights on SMF–BOI arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay25 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 855 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time81%Medianon timep9015 minCancel0.0%Flights31
- Southwest AirlinesOn-time81%Medianon timep9025 minCancel0.0%Flights824
Why flights run late
Delay causes
- Airline20%
- Weather1%
- Air traffic (NAS)8%
- Late aircraft70%
- Security1%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
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 · 697 flights
- Middays89% on time · p90 15 min · 695 flights
- Evenings74% on time · p90 45 min · 272 flights
- Afternoons71% on time · p90 40 min · 811 flights
- Overnights69% on time · p90 55 min · 134 flights · limited
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 · 362 flights
- Tuesdays84% on time · p90 25 min · 367 flights
- Saturdays84% on time · p90 25 min · 298 flights
- Mondays82% on time · p90 30 min · 399 flights
- Sundays81% on time · p90 30 min · 401 flights
- Thursdays79% on time · p90 25 min · 387 flights
- Fridays78% on time · p90 30 min · 395 flights
Advertisement
Keep exploring