Best Time to Fly HPN to SJU: On-Time Stats by Hour & Airline
Westchester County → Luis Munoz Marin International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.9% of White Plains (HPN) to San Juan (SJU) flights arrived on time (360 scheduled flights). That is 1.8 points below the national average of 77.6%.
JetBlue was the only reporting airline with regular flights on this route.
May has been the best month (93% on time) and Tuesday the weakest day of the week (71%).
4.2% of flights were cancelled, versus 1.8% nationally.
HPN 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 | 75.9% | 83 min | 4.2% | 360 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HPN to SJU
On-time arrival % by scheduled departure hour (local time), 635 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 77.5% | 2.5% | 635 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on HPN 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) | Limited data | 13 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 30 | ||
| Summer peak (Jun 15 - Aug 15) | 77.7% | -0.2 pts | 5.5% | 109 |
| All other days | 77.9% | — | 1.2% | 483 |
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).