Historical on-time performance
Salt Lake City to Miami
2,088 miData through Dec 2025Source: US DOT · BTS
Flights on SLC–MIA arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.6%of scheduled flights
based on 654 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-time82%Medianon timep9025 minCancel0.0%Flights336
- American AirlinesOn-time79%Medianon timep9035 minCancel1.3%Flights318
Why flights run late
Delay causes
- Airline44%
- Weather0%
- Air traffic (NAS)18%
- Late aircraft38%
- 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 SLC → MIA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Overnights are the most reliable time of day to fly this route — 83% on time.
- Overnights83% on time · p90 25 min · 1,180 flights
- Afternoons73% on time · p90 70 min · 128 flights · limited
- Evenings73% on time · p90 35 min · 190 flights · limited
- Middays65% on time · p90 80 min · 193 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 84% on time.
- Tuesdays84% on time · p90 25 min · 248 flights
- Fridays82% on time · p90 30 min · 249 flights
- Wednesdays79% on time · p90 30 min · 250 flights
- Thursdays79% on time · p90 30 min · 248 flights
- Mondays76% on time · p90 35 min · 253 flights
- Saturdays74% on time · p90 50 min · 250 flights
- Sundays74% on time · p90 50 min · 253 flights
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