JFK to SJU flight delays
New York, NY (JFK) San Juan, PR (SJU) · 1,598 miles
289 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
78.95%
Arrived on time
Within 15 minutes of schedule
1.04%
Cancelled
Share of scheduled flights
72 min
When late, late by
Average across delayed arrivals
16 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 72 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
Only JetBlue Airways flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
This is a thin route — 289 flights across the whole period. On a route this infrequent a cancellation is far more costly than the rate suggests, because the next departure may not be the same day.
The New York to San Juan route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over March 2025 – August 2026, JetBlue Airways arrived on time most often on JFK to SJU.
Every airline on JFK to SJU
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| JetBlue Airways | 199 | 77.55% | 1.51% | 81 min | C |
| Delta Air Lines | 90 | 82.02% | 0% | 45 min | — |
The return leg
SJU to JFK San Juan back to New York 83.86% on time BOther routes from New York
Common questions
Are flights from New York to San Juan usually delayed?
78.95% of flights on the JFK to SJU route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from New York to San Juan?
Only JetBlue Airways appears in the published record on this route, with 199 flights and 77.55% arriving on time.
How often are JFK to SJU flights cancelled?
1.04% of scheduled flights did not operate — about 10 in every thousand. That is in the normal range.
When JFK to SJU flights are late, how late are they?
About 72 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on JFK to SJU during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →