Historical on-time performance
Detroit to Miami
1,145 miData through May 2026Source: US DOT · BTS
Flights on DTW–MIA arrive on time 79% of the time over the last 12 months.
On-time rate79%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.3%of scheduled flights
based on 1,536 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesbestOn-time88%Medianon timep9015 minCancel1.5%Flights394
- Delta Air LinesOn-time76%Medianon timep9045 minCancel0.9%Flights991
- Spirit AirlinesOn-time75%Medianon timep9050 minCancel3.3%Flights151
Why flights run late
Delay causes
- Airline51%
- Weather1%
- Air traffic (NAS)32%
- Late aircraft16%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline40%
- Weather55%
- Air traffic (NAS)5%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 20 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 DTW → 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 — 84% on time.
- Mornings84% on time · p90 20 min · 2,502 flights
- Middays70% on time · p90 60 min · 532 flights
- Afternoons69% on time · p90 65 min · 472 flights
- Evenings69% on time · p90 65 min · 1,329 flights
- Overnights63% on time · p90 75 min · 360 flights
Best day of week
Tuesdays are the most reliable day to fly this route — 83% on time.
- Tuesdays83% on time · p90 30 min · 671 flights
- Wednesdays79% on time · p90 35 min · 684 flights
- Mondays77% on time · p90 50 min · 766 flights
- Fridays76% on time · p90 40 min · 785 flights
- Thursdays75% on time · p90 45 min · 768 flights
- Saturdays73% on time · p90 50 min · 751 flights
- Sundays68% on time · p90 60 min · 770 flights
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