Historical on-time performance
Miami to Salt Lake City
Flights on MIA–SLC arrive on time 74% of the time over the last 12 months.
based on 695 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-time76%Medianon timep9045 minCancel1.4%Flights359
- Delta Air LinesOn-time72%Medianon timep9045 minCancel0.6%Flights336
Why flights run late
Delay causes
- Airline49%
- Weather2%
- Air traffic (NAS)19%
- Late aircraft29%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline29%
- Weather71%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 7 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 MIA → SLC
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 — 84% on time.
- Mornings84% on time · p90 20 min · 542 flights
- Evenings69% on time · p90 60 min · 1,195 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 81% on time.
- Tuesdays81% on time · p90 25 min · 267 flights
- Wednesdays75% on time · p90 45 min · 269 flights
- Thursdays75% on time · p90 40 min · 276 flights
- Fridays74% on time · p90 40 min · 275 flights
- Mondays71% on time · p90 45 min · 274 flights
- Saturdays68% on time · p90 70 min · 275 flights
- Sundays66% on time · p90 80 min · 276 flights
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