Best Time to Fly JAX to SJU
Jacksonville to San Juan — month-by-month delay data from the Bureau of Transportation Statistics.
Best month
January
1% on time
Worst month
January
1% on time
JAX → SJU on-time performance by month
23
24
25
26
JanFebMarAprMayJunJulAugSepOctNovDec
Worse
Better
Monthly breakdown
| Month | On-time | Cancel rate | Flights |
|---|---|---|---|
| January | 1% | 0% | 70 |
| February | 1% | 0% | 57 |
| March | 1% | 0% | 91 |
| April | 1% | 0% | 97 |
| May | 1% | 0% | 127 |
| June | 1% | 0% | 139 |
| July | 1% | 0.1% | 144 |
| August | 1% | 0.1% | 40 |
| November | 1% | 0% | 25 |
| December | 1% | 0% | 75 |
Frequently asked
What is the best month to fly from JAX to SJU?
January has the highest on-time rate at 1% for flights from Jacksonville to San Juan.
What is the worst month to fly JAX to SJU?
January has the lowest on-time rate at 1%, often due to winter weather.
How often are JAX to SJU flights delayed?
On average, 1% of flights from JAX to SJU arrive on time. That means about 99% experience some form of delay.
Source: Bureau of Transportation Statistics.