Miami (MIA) to Birmingham (BHM): On-Time Performance
Data through July 2026
The calendar drives reliability on MIA–BHM. September 2025 flights landed on schedule 96% of the time, but August 2024 dropped to 59% — a gap of 37 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (93% vs 77%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.1%
- Flights/day
- 1.8
- last 12 months
- Duration
- 2h 5m
- scheduled
- Distance
- 661 mi
Best airline from MIA to BHM
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 81% | 10 min | 1.0% | 1,298 |
| American Airlines | 61% | 33 min | 2.1% | 146 |
Monthly on-time trend
Best time to fly from MIA to BHM
Aim for departures around 9 p.m. (100% on-time); avoid 11 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 11 min |
| Tuesday | 83% | 10 min |
| Wednesdaybest | 86% | 10 min |
| Thursday | 80% | 11 min |
| Friday | 71% | 17 min |
| Saturday | 76% | 12 min |
| Sunday | 73% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft44%
- Airline operations23%
- National airspace system27%
- Weather6%
Frequently asked questions
- How often are flights from MIA to BHM delayed?
- 22% of MIA–BHM 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 12 minutes.
- Which airline is most reliable from MIA to BHM?
- Envoy Air has the best on-time record on this route at 81%, based on 1,298 flights. 2 airlines flew MIA–BHM frequently enough to compare in this period.
- What is the best time of day to fly from MIA to BHM?
- Departures around 9 p.m. have the best record (100% on-time), while departures around 11 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to BHM?
- The scheduled MIA–BHM flight time averages 2h 5m over 661 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are MIA to BHM flights cancelled?
- 1.1% 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 MIA to BHM?
- August 2024 was the roughest month in this dataset, with only 59% of arrivals on time. The best was September 2025 at 96%. If your dates are flexible, that 37-point gap is worth planning around.
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Based on 1,451 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.