Best Time to Fly SJU to BDL: On-Time Stats by Hour & Airline
Luis Munoz Marin International → Bradley International
Data through July 2026 · Last updated October 18, 2026
966 flights were scheduled from San Juan (SJU) to Hartford (BDL) in the last 12 months, and 69.8% of those that flew arrived on time, 7.8 points below the US average of 77.6%.
Among 2 airlines, Frontier Airlines led with 73.7% on time and JetBlue was last with 68.5%.
Over 24 months, Wednesday was the most reliable day (78% on time) and August the worst month (59%).
The cancellation rate was 2.3% (US average 1.8%).
SJU to BDL 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 |
|---|---|---|---|---|
| Frontier Airlines | 73.7% | 49 min | 1.2% | 240 |
| JetBlue | 68.5% | 78 min | 2.6% | 726 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJU to BDL
On-time arrival % by scheduled departure hour (local time), 1,944 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | 68.3% | 2.4% | 84 |
| 1am–2am | Limited data | 1 | |
| 2am–3am | 80.0% | 0.0% | 30 |
| 3am–4am | Limited data | 22 | |
| 4am–5am | Limited data | 11 | |
| 5am–6am | 77.3% | 0.0% | 76 |
| 6am–7am | 79.9% | 1.7% | 288 |
| 7am–8am | 78.2% | 3.8% | 211 |
| 8am–9am | 70.3% | 1.3% | 76 |
| 10am–11am | Limited data | 7 | |
| 11am–12pm | 79.2% | 0.0% | 77 |
| 12pm–1pm | 63.5% | 0.0% | 63 |
| 1pm–2pm | Limited data | 23 | |
| 2pm–3pm | 81.5% | 0.0% | 66 |
| 3pm–4pm | 64.5% | 1.4% | 355 |
| 4pm–5pm | 64.0% | 1.1% | 174 |
| 5pm–6pm | 51.1% | 1.1% | 93 |
| 6pm–7pm | 68.0% | 0.7% | 148 |
| 7pm–8pm | 63.3% | 5.3% | 95 |
| 8pm–9pm | 76.7% | 0.0% | 44 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SJU to BDL
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) | 65.7% | -7.8 pts | 0.0% | 35 |
| Christmas & New Year (Dec 20 - Jan 3) | 59.0% | -14.5 pts | 6.2% | 113 |
| Summer peak (Jun 15 - Aug 15) | 66.0% | -7.5 pts | 3.3% | 363 |
| All other days | 73.5% | — | 0.8% | 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).