Dallas (DAL) to Miami (MIA): On-Time Performance
Data through July 2026
Dallas (DAL) to Miami (MIA) effectively runs on two schedules. In January 2025, 93% of arrivals were on time; in May 2026 that fell to 53% — a 41-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%. Morning departures also hold up better than evening ones (80% vs 67%), which matters most in the rough months.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 20 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 1.1
- last 12 months
- Duration
- 2h 44m
- scheduled
- Distance
- 1,109 mi
Monthly on-time trend
Best time to fly from DAL to MIA
Aim for departures around 6 a.m. (97% on-time); avoid 1 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 25 min |
| Tuesday | 68% | 18 min |
| Wednesday | 73% | 17 min |
| Thursday | 71% | 23 min |
| Friday | 73% | 19 min |
| Saturday | 73% | 17 min |
| Sundaybest | 74% | 19 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations40%
- National airspace system22%
- Weather5%
Frequently asked questions
- How often are flights from DAL to MIA delayed?
- 28% of DAL–MIA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 20 minutes.
- What is the best time of day to fly from DAL to MIA?
- Departures around 6 a.m. have the best record (97% on-time), while departures around 1 p.m. have the worst (58%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DAL to MIA?
- The scheduled DAL–MIA flight time averages 2h 44m over 1,109 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are DAL to MIA flights cancelled?
- 1.4% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from DAL to MIA?
- May 2026 was the roughest month in this dataset, with only 53% of arrivals on time. The best was January 2025 at 93%. If your dates are flexible, that 41-point gap is worth planning around.
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Based on 877 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.