Airport month record
SJUNOV
Luis Munoz Marin International in November 2025
- Departures
- 2,715
- Month
- November 2025
- National, same month
- 79.4%
- Carriers
- 7
Historical statistics for November 2025, not live status or a forecast for this year’s November. For today’s conditions at SJU, see live FAA status.
SJU in November lands a B, 2 points better than the national rate of 79.4%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by an hour and a half on average. That is a workable record, not a spotless one. That rests on 2,715 flights, of which American Airlines flew 388 at 83.1% on time.
Key figures
On time
81.8%
Arrivals under 15 minutes late, of 2,679 completed departures
Avg delay
87 min
Across delayed arrivals only, not all flights
Cancelled
1.07%
Nationally in November: 2.49%
Whole year
77.8%
SJU across all twelve months
These figures cover 2,715 departures from Luis Munoz Marin International in November 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
November next to SJU's other months
Against SJU's own year, November ran 4 points better than the twelve-month rate of 77.8%, which makes it number three of twelve months, best first. Cancellations were unusually low for SJU in November, at 1.07% against 1.83% across the year. Either side of it, October ran 79.1% on time and December 78.4%, so a trip moved by a few weeks would have landed in a worse stretch.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 | 3,415 | 75.4% | 80 min | 1.55% | B |
| August 2025 | 2,975 | 70.9% | 80 min | 0.77% | C+ |
| September 2025 | 1,965 | 80.7% | 69 min | 0.00% | B+ |
| October 2025 | 2,186 | 79.1% | 68 min | 0.46% | B+ |
| November 2025 (this page) | 2,715 | 81.8% | 87 min | 1.07% | B |
| December 2025 | 3,393 | 78.4% | 79 min | 1.77% | B |
| January 2026 | 3,306 | 73.3% | 91 min | 7.96% | C− |
| February 2026 | 2,835 | 74.7% | 79 min | 3.17% | C− |
| March 2026 | 3,441 | 75.1% | 73 min | 2.06% | B |
| April 2026 | 3,190 | 78.4% | 68 min | 0.75% | B+ |
| May 2026 | 2,875 | 84.7% | 64 min | 0.21% | B+ |
| June 2026 | 3,095 | 83.1% | 76 min | 0.61% | B+ |
Departure window
The best time of day to leave SJU in November
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 13 points, against 5 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am560 flights88.8%
- 8am–11am262 flights88.9%
- 11am–2pm343 flights86.9%
- 2pm–5pm725 flights77.9%
- 5pm–8pm524 flights76.4%
- 8pm–5am301 flights75.5%
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 88.9% of the time, against 75.5% for the overnight window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 725 flights scheduled in it.
Across the week, Wednesday is the strongest day at 90.7% on time and Sunday the weakest at 71.4%. 19 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at SJU in November
The two carriers here are closely matched: 5 points separate the best from the worst. At that spread, schedule and price are better tie-breakers than reliability. Sample sizes are shown so you can see which rows are worth weighing.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| JetBlue Airways | 978 | 78.2% | 92 min | 1.33% | B |
| American Airlines | 388 | 83.1% | 77 min | 0.52% | B+ |
| Frontier Airlinesthin sample | 346 | 74.9% | 95 min | 0.87% | C+ |
| Southwest Airlinesthin sample | 307 | 90.5% | 44 min | 0.65% | A+ |
| United Airlinesthin sample | 299 | 83.3% | 82 min | 1.67% | B |
| Delta Air Linesthin sample | 267 | 91.3% | 112 min | 1.12% | A |
| Spirit Airlinesthin sample | 130 | 79.7% | 78 min | 0.77% | B+ |
No carrier stands out. American tops the table at 83.1%, 5 points clear of the bottom, which is inside the range this kind of sample moves year to year.
Route by route
Busiest routes out of SJU in November
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SJU to MCO · Orlando | 483 | 86.4% | 93 min | 1.04% | A |
| SJU to JFK · New Yorkthin sample | 297 | 80.6% | 82 min | 1.01% | B |
| SJU to FLL · Fort Lauderdalethin sample | 228 | 85.3% | 94 min | 1.32% | A |
| SJU to MIA · Miamithin sample | 211 | 80.5% | 78 min | 0.47% | B+ |
| SJU to ATL · Atlantathin sample | 148 | 87.6% | 147 min | 1.35% | A |
| SJU to EWR · Newarkthin sample | 144 | 78.4% | 107 min | 3.47% | B− |
| SJU to TPA · Tampathin sample | 128 | 79.7% | 110 min | 0.00% | B+ |
| SJU to PHL · Philadelphiathin sample | 125 | 76.2% | 75 min | 1.60% | B |
| SJU to BOS · Bostonthin sample | 120 | 76.7% | 52 min | 1.67% | B |
| SJU to ORD · Chicagothin sample | 100 | 74.7% | 50 min | 1.00% | C |
| SJU to CLT · Charlottethin sample | 83 | 85.4% | 91 min | 1.20% | A |
| SJU to BWI · Baltimorethin sample | 75 | 83.8% | 35 min | 1.33% | B |
| SJU to DFW · Dallas-Fort Worththin sample | 75 | 83.8% | 72 min | 0.00% | B+ |
| SJU to IAD · Washingtonthin sample | 73 | 87.7% | 49 min | 0.00% | A+ |
| SJU to IAH · Houstonthin sample | 68 | 79.4% | 77 min | 0.00% | B+ |
| SJU to BDL · Hartfordthin sample | 64 | 73.4% | 108 min | 0.00% | C+ |
| SJU to RDU · Raleighthin sample | 41 | 80.0% | 72 min | 2.44% | B |
| SJU to STT · Charlotte Amaliethin sample | 31 | 80.6% | 95 min | 0.00% | B+ |
| SJU to PVD · Providencethin sample | 30 | 79.3% | 43 min | 0.00% | B+ |
| SJU to DEN · Denverthin sample | 30 | 86.7% | 49 min | 0.00% | A+ |
| SJU to DCA · Washingtonthin sample | 30 | 70.0% | 117 min | 0.00% | C+ |
| SJU to STX · Christianstedthin sample | 30 | 76.7% | 56 min | 0.00% | B+ |
| SJU to HPN · White Plainsthin sample | 30 | 82.8% | 363 min | 3.33% | B− |
Delay causes
What held SJU up in November
One category carries most of the weight here. Late-arriving aircraft accounts for 56% of the 42,000 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 56%Late-arriving aircraft
- 33%Carrier
- 10%National Airspace System
- 0%Extreme weather
56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 42,000 reported delay minutes here, that single category outweighs weather by 56 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 42,425 reported delay minutes.
Cancellations sit at 1.07% against a national 2.49%, which is ordinary. Diversions add another 0.26%.
7.5% of arrivals land an hour or more late, close to the national 7.8%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, which a normal layover absorbs.
What to do with this
Flying from SJU in November
For a November trip through SJU: this is one of the better months to be flying from here, 81.8% on time with 1.07% cancelled. That is a base rate for the month as a whole; a single storm can still spoil a particular day.
Related
Where to go next
- Luis Munoz Marin International (SJU), the whole year
- SJU in July75.4%
- SJU in August70.9%
- SJU in September80.7%
- SJU in October79.1%
- SJU in December78.4%
- SJU in January73.3%
- SJU in February74.7%
- SJU in March75.1%
- SJU in April78.4%
- SJU in May84.7%
- SJU in June83.1%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.