Flight OddsB6861 BOS → SJU
JetBlue Airways · Boston, MA to San Juan, PR · 364 flights observed, 2025-07-01 to 2026-06-30 · 1,674 mi
On-time arrival
80%
Median delay
-9 min
90th percentile
+41 min
Cancellation rate
3%
How often is B6861 on time?
Across 364 flights on BOS → SJU from 2025-07-01 to 2026-06-30, B6861 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +41 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 282 | 80% |
| 16-30 min | 21 | 6% |
| 31-60 min | 28 | 8% |
| 61-120 min | 16 | 5% |
| 2+ hrs | 5 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 94% | -6 min |
| 2025-08 | 29 | 90% | -6 min |
| 2025-09 | 30 | 70% | +8 min |
| 2025-10 | 30 | 90% | -20 min |
| 2025-11 | 28 | 86% | -7 min |
| 2025-12 | 31 | 71% | +9 min |
| 2026-01 | 27 | 67% | +16 min |
| 2026-02 | 25 | 64% | +21 min |
| 2026-03 | 30 | 90% | -8 min |
| 2026-04 | 30 | 83% | +9 min |
| 2026-05 | 31 | 77% | -1 min |
| 2026-06 | 30 | 77% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 78% |
| Tue | 50 | 88% |
| Wed | 51 | 78% |
| Thu | 52 | 75% |
| Fri | 50 | 80% |
| Sat | 51 | 84% |
| Sun | 48 | 77% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…