Best Time to Fly BDL to SJU: On-Time Stats by Hour & Airline
Bradley International → Luis Munoz Marin International
Data through July 2026 · Last updated October 18, 2026
966 flights were scheduled from Hartford (BDL) to San Juan (SJU) in the last 12 months, and 60.8% of those that flew arrived on time, 16.9 points below the US average of 77.6%.
JetBlue was the most punctual of the 2 airlines on the route at 61.2%, while Frontier Airlines trailed at 59.4%.
May has been the best month (76% on time) and Thursday the weakest day of the week (62%).
2.0% of flights were cancelled, versus 1.8% nationally.
BDL to SJU 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 |
|---|---|---|---|---|
| JetBlue | 61.2% | 93 min | 1.9% | 727 |
| Frontier Airlines | 59.4% | 108 min | 2.1% | 239 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BDL to SJU
On-time arrival % by scheduled departure hour (local time), 1,943 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 77.4% | 1.7% | 117 |
| 7am–8am | 81.6% | 5.0% | 40 |
| 8am–9am | 81.7% | 0.0% | 112 |
| 9am–10am | 67.6% | 1.7% | 181 |
| 10am–11am | 71.5% | 3.8% | 159 |
| 11am–12pm | 56.8% | 1.5% | 131 |
| 12pm–1pm | Limited data | 8 | |
| 1pm–2pm | 62.2% | 1.0% | 99 |
| 2pm–3pm | 68.1% | 0.0% | 113 |
| 3pm–4pm | 71.7% | 1.9% | 54 |
| 4pm–5pm | 62.6% | 0.0% | 127 |
| 5pm–6pm | 48.9% | 1.1% | 93 |
| 6pm–7pm | 64.5% | 3.1% | 64 |
| 7pm–8pm | 60.2% | 1.3% | 299 |
| 8pm–9pm | 59.0% | 0.0% | 161 |
| 9pm–10pm | 65.1% | 0.9% | 110 |
| 10pm–11pm | 38.0% | 5.3% | 75 |
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 SJU
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) | 44.1% | -22.8 pts | 0.0% | 34 |
| Christmas & New Year (Dec 20 - Jan 3) | 62.3% | -4.6 pts | 6.2% | 113 |
| Summer peak (Jun 15 - Aug 15) | 56.6% | -10.3 pts | 2.5% | 363 |
| All other days | 66.9% | — | 0.9% | 1,433 |
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).