Historical on-time performance
Jacksonville to Miami
Flights on JAX–MIA arrive on time 79% of the time over the last 12 months.
based on 1,532 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-time79%Medianon timep9050 minCancel1.2%Flights828
- Envoy AirOn-time78%Medianon timep9040 minCancel1.0%Flights704
Why flights run late
Delay causes
- Airline35%
- Weather4%
- Air traffic (NAS)14%
- Late aircraft48%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline12%
- Weather41%
- Air traffic (NAS)47%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 17 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 JAX → MIA
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 — 87% on time.
- Mornings87% on time · p90 20 min · 2,048 flights
- Middays84% on time · p90 30 min · 1,040 flights
- Afternoons65% on time · p90 70 min · 799 flights
- Evenings64% on time · p90 85 min · 1,159 flights
- Overnights56% on time · p90 120 min · 254 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 80% on time.
- Wednesdays80% on time · p90 40 min · 728 flights
- Tuesdays79% on time · p90 40 min · 754 flights
- Mondays78% on time · p90 55 min · 753 flights
- Fridays76% on time · p90 55 min · 771 flights
- Thursdays76% on time · p90 55 min · 750 flights
- Saturdays75% on time · p90 55 min · 776 flights
- Sundays73% on time · p90 70 min · 768 flights
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