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Tell FlyerIntel where and when you are flying. It will show how that route actually performs at that time of day and on that day of the week, what both airports are doing right now, and when to get to the airport.
JFK → SJU
New York to San Juan · departing 9:50 PM
JFK → SJU flights departing 9 PM–5 AM arrive on time 60.3% of the time, against 70.5% across the whole day — your departure window is 10.2 points worse than average for this route.
There is no day-by-hour view for JFK → SJU: only 23 of its weekday-and-hour slots have 120 or more flights, and a day-by-hour view needs 45.
Other times on JFK → SJU
Time of day
On JFK → SJU, flights leaving 5–9 AM arrived on time 80.6% of the time, against 60.3% for those leaving 9 PM–5 AM: 20.3 points more often.
- 5–9 AM80.6%
- 9 AM–12 PM67.4%
- 12–3 PM75.9%
- 3–6 PM68.3%
- 6–9 PM59.5%
- 9 PM–5 AM60.3%
Day of week
- Monday70.7%
- Tuesday72.2%
- Wednesday73.4%
- Thursday69.3%
- Friday72.6%
- Saturday68.3%
- Sunday67.3%
Bars start below the lowest figure so a real gap is visible; read the percentage, not the bar length. A time with too few flights to score is left unscored rather than guessed at.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · History describes what has happened on this route. It is not a prediction about your flight. Full route profile →
Which flight
Flights on JFK → SJU, the ones scheduled closest to 9:50 PM first.
Within 90 minutes of 9:50 PM, B61803 (usually 8:25 PM) has the best record: 74.3% on time and 1.70% cancelled over 412 flights, against 70.5% on time for JFK → SJU as a whole.
| Flight | Usually departs | On time | Cancelled |
|---|---|---|---|
| B6403JetBlueLive map | 9:50 PM | 63.1% | 2.60% |
| B6303JetBlueLive map | 10:00 PM10 min away | 59.8% | 1.99% |
| B62903JetBlueLive map | 10:59 PM69 min away | 59.7% | 2.34% |
| B6903JetBlueLive map | 8:40 PM70 min away | 63.3% | 3.59% |
| B61803JetBlueLive map | 8:25 PM85 min away | 74.3% | 1.70% |
| B6703JetBlueLive map | 8:00 PM110 min away | 54.6% | 2.85% |
| DL1859Delta Air LinesLive map | 6:59 PM171 min away | 67.7% | 0.82% |
| B6803JetBlueLive map | 3:30 PM380 min away | 63.8% | 1.79% |
| B61603JetBlueLive map | 5:01 AM431 min away | 78.5% | 1.64% |
| DL1961Delta Air LinesLive map | 12:25 PM565 min away | 86.6% | 0.55% |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – July 2026 · Showing 10 of 12 flight numbers. “Usually departs” is the scheduled time each flight number most often had over the period; airlines retime flights, so confirm the time on your booking. Flight numbers with fewer than 90 operations on this route are left out. This is history, not a forecast for your flight.
When to get to the airport
A starting point for JFK, not a promise about your day.
2h 0m before your 9:50 PM departure
How this was worked out
- FlyerIntel cannot currently obtain live security wait times for JFK, so this figure does not account for the queue on the day.
- It does not include your journey to the airport, parking, or a shuttle from a remote lot.
- International departures, and travel with children, checked pets or special assistance, need more time.
Both airports right now
Aviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedAviation weather is not currently a factor.
Minimal operational impact. Conditions are not a notable factor for operations right now.
UpdatedSource: NOAA Aviation Weather Center · Conditions describe the airfield, not your flight, and change quickly.
Other ways to make this journey
Airport pairings serving New York to San Juan.
Who flies this route
Performance by the carrier that actually operates the flight.
| Carrier | Flights | On time | Cancelled | Median delay |
|---|---|---|---|---|
| JetBlue | 6,846 | 66.8% | 2.06% | -1 min |
| Delta Air Lines | 3,402 | 80.0% | 0.85% | -11 min |
| Frontier Airlines | 1,090 | 64.3% | 1.93% | 0 min |