Historical on-time performance
Boston to Las Vegas
Flights on BOS–LAS arrive on time 75% of the time over the last 12 months.
based on 1,674 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-time77%Medianon timep9040 minCancel1.3%Flights622
- JetBlue AirwaysOn-time74%Medianon timep9050 minCancel1.0%Flights1,052
Why flights run late
Delay causes
- Airline32%
- Weather3%
- Air traffic (NAS)26%
- Late aircraft38%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline11%
- Weather89%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 19 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 BOS → LAS
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 — 82% on time.
- Mornings82% on time · p90 30 min · 2,598 flights
- Middays77% on time · p90 40 min · 509 flights
- Evenings70% on time · p90 70 min · 1,683 flights
- Afternoons65% on time · p90 65 min · 198 flights · limited
- Overnights62% on time · p90 110 min · 120 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 79% on time.
- Tuesdays79% on time · p90 35 min · 675 flights
- Wednesdays79% on time · p90 35 min · 693 flights
- Saturdays77% on time · p90 55 min · 614 flights
- Thursdays76% on time · p90 45 min · 783 flights
- Mondays74% on time · p90 50 min · 775 flights
- Fridays74% on time · p90 45 min · 786 flights
- Sundays74% on time · p90 55 min · 782 flights
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