Historical on-time performance
Dallas to Miami
1,109 miData through Dec 2025Source: US DOT · BTS
Flights on DAL–MIA arrive on time 68% of the time over the last 12 months.
On-time rate68%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled1.7%of scheduled flights
based on 359 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time68%Medianon timep9075 minCancel1.7%Flights359
Why flights run late
Delay causes
- Airline35%
- Weather5%
- Air traffic (NAS)20%
- Late aircraft39%
- Security0%
Most delay minutes here are attributed to Late aircraft.
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 (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 65% to 85% on time.
- Mornings85% on time · p90 25 min · 252 flights
- Overnights76% on time · p90 30 min · 51 flights · limited
- Middays73% on time · p90 40 min · 662 flights
- Evenings66% on time · p90 80 min · 263 flights
- Afternoons65% on time · p90 100 min · 161 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 77% on time.
- Tuesdays77% on time · p90 35 min · 167 flights · limited
- Fridays76% on time · p90 40 min · 170 flights · limited
- Sundays75% on time · p90 40 min · 263 flights
- Saturdays75% on time · p90 50 min · 281 flights
- Wednesdays71% on time · p90 40 min · 167 flights · limited
- Mondays70% on time · p90 50 min · 171 flights · limited
- Thursdays67% on time · p90 70 min · 170 flights · limited
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