Historical on-time performance
Las Vegas to Boise
520 miData through Dec 2025Source: US DOT · BTS
Flights on LAS–BOI arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,124 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.
- Southwest AirlinesOn-time77%Medianon timep9030 minCancel0.3%Flights1,033
- SkyWest AirlinesOn-time74%Medianon timep9050 minCancel0.0%Flights91
Why flights run late
Delay causes
- Airline32%
- Weather1%
- Air traffic (NAS)10%
- Late aircraft56%
- Security0%
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 LAS → 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 — 91% on time.
- Mornings91% on time · p90 10 min · 1,196 flights
- Evenings76% on time · p90 45 min · 554 flights
- Middays70% on time · p90 45 min · 875 flights
- Afternoons69% on time · p90 50 min · 1,034 flights
- Overnights65% on time · p90 55 min · 1,072 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 82% on time.
- Saturdays82% on time · p90 30 min · 519 flights
- Wednesdays81% on time · p90 25 min · 588 flights
- Tuesdays81% on time · p90 25 min · 591 flights
- Mondays72% on time · p90 50 min · 762 flights
- Fridays72% on time · p90 50 min · 762 flights
- Thursdays70% on time · p90 45 min · 742 flights
- Sundays68% on time · p90 45 min · 767 flights
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