Historical on-time performance
Boston to Las Vegas
2,381 miData through Dec 2025Source: US DOT · BTS
Flights on BOS–LAS arrive on time 76% of the time over the last 12 months.
On-time rate76%arrived within 15 min
p90 delay45 min1 in 10 flights is worse (tail risk)
Cancelled0.3%of scheduled flights
based on 1,716 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.
- Delta Air LinesOn-time75%Medianon timep9045 minCancel0.2%Flights620
- JetBlue AirwaysOn-time76%Medianon timep9045 minCancel0.5%Flights1,096
Why flights run late
Delay causes
- Airline34%
- Weather2%
- Air traffic (NAS)31%
- Late aircraft33%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BOS → LAS
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 — 81% on time.
- Mornings81% on time · p90 30 min · 2,488 flights
- Middays77% on time · p90 45 min · 523 flights
- Evenings70% on time · p90 70 min · 1,604 flights
- Afternoons68% on time · p90 60 min · 194 flights · limited
- Overnights59% on time · p90 105 min · 75 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.
- Tuesdays80% on time · p90 35 min · 645 flights
- Wednesdays79% on time · p90 35 min · 665 flights
- Thursdays76% on time · p90 50 min · 740 flights
- Saturdays76% on time · p90 55 min · 599 flights
- Mondays75% on time · p90 55 min · 743 flights
- Fridays73% on time · p90 45 min · 744 flights
- Sundays73% on time · p90 55 min · 748 flights
Advertisement
Keep exploring