Miami (MIA) to Hartford (BDL): On-Time Performance
Data through July 2026
Miami (MIA) to Hartford (BDL) effectively runs on two schedules. In February 2025, 94% of arrivals were on time; in July 2024 that fell to 36% — a 59-point seasonal swing. Across the full period the route averages 72% on-time against a national 78%.
- On-time
- 72%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 1.2
- last 12 months
- Duration
- 3h 10m
- scheduled
- Distance
- 1,194 mi
Best airline from MIA to BDL
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlinesmost reliable | 81% | 8 min | 3.3% | 60 |
| American Airlines | 71% | 20 min | 1.1% | 790 |
Monthly on-time trend
Best time to fly from MIA to BDL
Aim for departures around 10 a.m. (85% on-time); avoid 8 p.m. departures (70%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 68% | 21 min |
| Tuesdaybest | 82% | 9 min |
| Wednesday | 73% | 23 min |
| Thursday | 69% | 20 min |
| Friday | 67% | 23 min |
| Saturday | 72% | 16 min |
| Sunday | 72% | 20 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations38%
- National airspace system14%
- Weather6%
Frequently asked questions
- How often are flights from MIA to BDL delayed?
- 28% of MIA–BDL 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 19 minutes.
- Which airline is most reliable from MIA to BDL?
- Frontier Airlines has the best on-time record on this route at 81%, based on 60 flights. 2 airlines flew MIA–BDL frequently enough to compare in this period.
- What is the best time of day to fly from MIA to BDL?
- Departures around 10 a.m. have the best record (85% on-time), while departures around 8 p.m. have the worst (70%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from MIA to BDL?
- The scheduled MIA–BDL flight time averages 3h 10m over 1,194 miles. Actual arrival times vary — flights on this route land 15+ minutes late 28% of the time.
- How often are MIA to BDL flights cancelled?
- 1.2% 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 BDL?
- July 2024 was the roughest month in this dataset, with only 36% of arrivals on time. The best was February 2025 at 94%. If your dates are flexible, that 59-point gap is worth planning around.
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Based on 884 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.