Historical on-time performance
Dallas to Miami
1,109 miData through May 2026Source: US DOT · BTS
Flights on DAL–MIA arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled2.5%of scheduled flights
based on 366 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time67%Medianon timep9075 minCancel2.5%Flights366
Why flights run late
Delay causes
- Airline33%
- Weather3%
- Air traffic (NAS)25%
- Late aircraft38%
- Security1%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather67%
- Air traffic (NAS)33%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 9 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 DAL → 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 — 83% on time.
- Mornings83% on time · p90 25 min · 256 flights
- Middays73% on time · p90 45 min · 614 flights
- Afternoons67% on time · p90 100 min · 189 flights · limited
- Evenings65% on time · p90 80 min · 214 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 75% on time.
- Fridays75% on time · p90 55 min · 158 flights · limited
- Sundays74% on time · p90 40 min · 242 flights
- Saturdays74% on time · p90 60 min · 274 flights
- Tuesdays73% on time · p90 75 min · 152 flights · limited
- Wednesdays72% on time · p90 40 min · 153 flights · limited
- Thursdays71% on time · p90 65 min · 157 flights · limited
- Mondays68% on time · p90 70 min · 156 flights · limited
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