San Juan, PR · Airport profile
SJU
Luis Muñoz Marín International Airport
SJU right now
Live conditions where a permitted source publishes them, and the historical record where none does.
Aviation weather is not currently a factor.
84.3% leave on time
09:00–09:59 local · 2,220 departures on record
When flights run late in this hour, most of the delay is attributed to late-arriving aircraft.
Historical pattern for SJU from US DOT BTS — not a live reading.
Minimal operational impact. Conditions are not a notable factor for operations right now.
Forecast issued 11:45Z.
UpdatedBelow 10,000 ft, so aircraft overflying at cruise are not counted. These are observations, not an operational status: a count is a floor, since receiver coverage varies.
UpdatedAircraft observations from adsb.lol, under the ODbL 1.0. Derived data.
FlyerIntel shows live values only where a permitted source provides them. Sections without data are left empty rather than estimated.
Airport reliability
Departures from SJU, July 2023 – June 2026.
Better than 20% of major US airports covered by FlyerIntel (58 compared)
Calculated from 106,272 flights. How this is calculated
Source: US DOT Bureau of Transportation Statistics · Data covering July 2023 – June 2026
Best time to fly from SJU
On-time arrival rate by scheduled local departure time.
Flights departing 5–9 AM arrived on time 88.3% of the time, against 68.4% for 3–6 PM departures — a gap of 19.9 percentage points.
By departure window
By departure hour
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Buckets with fewer than 120 flights are not scored.
International arrivals
How long passport control normally takes at this airport. This is the arrivals queue, not departure security.
| Terminal | Typical wait | Busy-hour wait | Worst recorded | Hours over 30 min |
|---|---|---|---|---|
| San Juan AA | 13 min | 26 min | 194 min | 4.7% |
Typical wait by hour — San Juan AA
Arrivals landing around 6 PM typically wait 19 min, against 5 min around 8 AM.
Source: US Customs and Border Protection · 2024-08-28 to 2026-08-28 · These are CBP passport control waits for arriving international passengers — a different queue from TSA departure screening. CBP publishes them about two days in arrears, so this describes what is normal rather than what is happening now.
What to expect at SJU
How busy the airport is through the day, from scheduled departure volume.
Scheduled departures by hour
The busiest hour is 3 PM, with about 8 departures a day, against roughly 2 at 9 AM.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Taxi-out is the time between leaving the gate and lifting off, averaged across departures and weighted by hour.
Weekly and seasonal patterns
By day of week
Wednesday is historically the most reliable day and Saturday the least, a gap of 4.8 percentage points.
By month
August is historically the weakest month and November the strongest, a spread of 13.0 percentage points.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Airlines at SJU
Departure performance by operating carrier. Regional flights are reported by the carrier that operated them, not by the mainline brand.
| Carrier | Departures | On time | Cancelled | Median delay |
|---|---|---|---|---|
| JetBlue B6 | 32,329 | 73.6% | 1.34% | -5 min |
| Frontier Airlines F9 | 16,180 | 68.8% | 2.10% | -2 min |
| American Airlines AA | 13,097 | 77.1% | 0.78% | -6 min |
| Spirit Airlines NK | 12,230 | 75.0% | 2.12% | -6 min |
| Southwest Airlines WN | 11,708 | 80.7% | 0.59% | -2 min |
| Delta Air Lines DL | 10,845 | 86.7% | 0.82% | -10 min |
| United Airlines UA | 9,858 | 81.1% | 1.24% | -8 min |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Carriers with fewer than 500 departures are not listed.
Routes from SJU
Ranked by FlyerIntel Route Reliability Score.
Busiest routes
| Destination | Flights | On time | Score |
|---|---|---|---|
| SJU → MCO Orlando | 18,752 | 77.3% | 60 |
| SJU → JFK New York | 11,035 | 79.6% | 61 |
| SJU → MIA Miami | 8,278 | 76.7% | 59 |
| SJU → FLL Fort Lauderdale | 6,980 | 74.6% | 57 |
| SJU → EWR Newark | 6,653 | 73.4% | 48 |
| SJU → ATL Atlanta | 6,433 | 81.3% | 71 |
| SJU → BOS Boston | 6,286 | 73.2% | 50 |
| SJU → PHL Philadelphia | 4,931 | 67.1% | 36 |
| SJU → TPA Tampa | 4,635 | 76.8% | 58 |
| SJU → BWI Baltimore | 3,967 | 77.9% | 65 |
| SJU → ORD Chicago | 3,766 | 78.1% | 67 |
| SJU → CLT Charlotte | 3,223 | 79.6% | 66 |
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026 · Only routes with at least 750 flights are ranked.
Reliability over time
On-time arrival rate for departures, by month.
Source: FlyerIntel analysis of US DOT BTS data · July 2023 – June 2026
Data and sources
Historical statistics
Every historical figure on this page is calculated by FlyerIntel from US DOT Bureau of Transportation Statistics on-time performance records covering July 2023 – June 2026, comprising 106,272 departures from SJU. A flight counts as delayed when it arrives 15 or more minutes after schedule.
Live conditions
Aviation weather comes from the NOAA Aviation Weather Center. Operational events come from the FAA where available. FlyerIntel shows the age of every live value and does not display data it cannot currently retrieve.
Latest observation for SJU: METAR TJSJ 301256Z 07010KT 10SM SCT021 BKN042 BKN065 30/26 A2996 RMK AO2 SLP144 VCSH SE-SW NW T03000261 $ (issued ).