Miami (MIA) to Baltimore (BWI): On-Time Performance
Data through July 2026
Miami (MIA) to Baltimore (BWI) effectively runs on two schedules. In October 2024, 89% of arrivals were on time; in July 2026 that fell to 50% — a 39-point seasonal swing. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (91% vs 65%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 18 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 6.3
- last 12 months
- Duration
- 2h 40m
- scheduled
- Distance
- 946 mi
Best airline from MIA to BWI
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 83% | 9 min | 1.4% | 289 |
| Southwest Airlines | 76% | 16 min | 1.8% | 2,504 |
| Frontier Airlines | 76% | 21 min | 2.7% | 591 |
| Spirit Airlines | 71% | 26 min | 4.1% | 197 |
| American Airlines | 67% | 22 min | 2.2% | 1,244 |
Monthly on-time trend
Best time to fly from MIA to BWI
Aim for departures around 6 a.m. (95% on-time); avoid 6 p.m. departures (45%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 21 min |
| Tuesday | 81% | 13 min |
| Wednesdaybest | 82% | 13 min |
| Thursday | 75% | 19 min |
| Friday | 72% | 19 min |
| Saturday | 73% | 18 min |
| Sunday | 68% | 22 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 operations29%
- National airspace system22%
- Weather5%
Frequently asked questions
- How often are flights from MIA to BWI delayed?
- 26% of MIA–BWI 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 18 minutes.
- Which airline is most reliable from MIA to BWI?
- Envoy Air has the best on-time record on this route at 83%, based on 289 flights. 5 airlines flew MIA–BWI frequently enough to compare in this period.
- What is the best time of day to fly from MIA to BWI?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 6 p.m. have the worst (45%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to BWI?
- The scheduled MIA–BWI flight time averages 2h 40m over 946 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are MIA to BWI flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from MIA to BWI?
- July 2026 was the roughest month in this dataset, with only 50% of arrivals on time. The best was October 2024 at 89%. If your dates are flexible, that 39-point gap is worth planning around.
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Based on 4,825 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.