Historical on-time performance
San Francisco to Miami
Flights on SFO–MIA arrive on time 78% of the time over the last 12 months.
based on 1,701 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-time78%Medianon timep9035 minCancel0.9%Flights1,073
- United AirlinesOn-time77%Medianon timep9030 minCancel0.0%Flights628
Why flights run late
Delay causes
- Airline46%
- Weather1%
- Air traffic (NAS)23%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather90%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 10 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 SFO → MIA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 74% to 82% on time.
- Overnights82% on time · p90 25 min · 1,866 flights
- Mornings81% on time · p90 30 min · 1,826 flights
- Middays74% on time · p90 45 min · 1,032 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 83% on time.
- Tuesdays83% on time · p90 25 min · 661 flights
- Saturdays82% on time · p90 25 min · 692 flights
- Wednesdays82% on time · p90 25 min · 668 flights
- Fridays81% on time · p90 35 min · 700 flights
- Mondays79% on time · p90 40 min · 687 flights
- Thursdays79% on time · p90 35 min · 691 flights
- Sundays76% on time · p90 45 min · 692 flights
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