Historical on-time performance
Las Vegas to Miami
2,175 miData through Dec 2025Source: US DOT · BTS
Flights on LAS–MIA arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.4%of scheduled flights
based on 1,479 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.
- American AirlinesOn-time80%Medianon timep9040 minCancel0.4%Flights1,419
- Spirit AirlinesOn-time82%Medianon timep9020 minCancel0.0%Flights60
Why flights run late
Delay causes
- Airline43%
- Weather2%
- Air traffic (NAS)13%
- Late aircraft41%
- 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 LAS → MIA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 67% to 82% on time.
- Mornings82% on time · p90 25 min · 1,145 flights
- Overnights80% on time · p90 35 min · 1,776 flights
- Afternoons75% on time · p90 65 min · 181 flights · limited
- Early mornings73% on time · p90 50 min · 542 flights
- Middays67% on time · p90 60 min · 1,258 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 71% to 80% on time.
- Tuesdays80% on time · p90 30 min · 690 flights
- Wednesdays79% on time · p90 35 min · 683 flights
- Saturdays79% on time · p90 40 min · 679 flights
- Mondays77% on time · p90 45 min · 697 flights
- Fridays75% on time · p90 40 min · 721 flights
- Sundays73% on time · p90 50 min · 710 flights
- Thursdays71% on time · p90 70 min · 723 flights
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