Best Time to Fly BDL to MIA: On-Time Stats by Hour & Airline
Bradley International → Miami International
Data through July 2026 · Last updated October 18, 2026
429 flights were scheduled from Hartford (BDL) to Miami (MIA) in the last 12 months, and 90.3% of those that flew arrived on time, 12.7 points above the US average of 77.6%.
American Airlines was the most punctual of the 2 airlines on the route at 90.5%, while Frontier Airlines trailed at 87.5%.
October has been the best month (97% on time) and Sunday the weakest day of the week (85%).
1.4% of flights were cancelled, versus 1.8% nationally.
BDL to MIA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| American Airlines | 90.5% | 150 min | 1.3% | 396 |
| Frontier Airlines | 87.5% | 69 min | 3.0% | 33 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BDL to MIA
On-time arrival % by scheduled departure hour (local time), 854 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.0% | 1.2% | 667 |
| 6am–7am | 98.3% | 1.6% | 61 |
| 7am–8am | 61.3% | 0.0% | 31 |
| 8am–9am | Limited data | 1 | |
| 11am–12pm | Limited data | 6 | |
| 1pm–2pm | Limited data | 3 | |
| 2pm–3pm | Limited data | 3 | |
| 3pm–4pm | 82.3% | 0.0% | 34 |
| 4pm–5pm | Limited data | 6 | |
| 5pm–6pm | Limited data | 1 | |
| 7pm–8pm | Limited data | 20 | |
| 8pm–9pm | Limited data | 21 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BDL to MIA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 14 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 84.8% | -4.2 pts | 2.9% | 34 |
| Summer peak (Jun 15 - Aug 15) | 91.8% | +2.8 pts | 1.6% | 124 |
| All other days | 89.0% | — | 1.2% | 682 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).