On-Time Report

Airports › San Juan (SJU) › December 2024

Airport month · December 2024

Luis Munoz Marin International in December 2024

74.7%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In December 2024, reporting carriers scheduled 3,517 domestic departures from Luis Munoz Marin International (SJU). 74.7% left less than 15 minutes late and 74.0% reached their destination on time; 0.4% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so SJU departures were 3.1 points below the national departure figure.

A year earlier, in December 2023, the airport had 3,057 departures with 75.8% leaving on time: a change of −1.1 points, with flights up 15%.

Flights arriving at SJU that month were on time 70.9% of the time (3,525 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, air carrier 32% and national aviation system 15%.

Every scheduled departure from SJU in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

MeasureDec 2024Dec 2023SJU, 12 months to Jul 2026All reported flights, Dec 2024
Departed on time74.7%75.8%74.5%77.8%
Arrived on time74.0%75.8%75.6%78.1%
Cancelled0.4%0.2%2.0%0.7%
Average departure delay (late minutes only)19.2 min19.0 min19.6 min16.6 min
Scheduled departures a day1171029719,686
Scheduled departures3,5173,05735,302590,581

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
B6 JetBlue Airways1,11032%67.5%19.5 min0.3%
F9 Frontier Airlines62118%70.0%11.5 min0.3%
AA American Airlines41512%74.9%6.6 min0.0%
NK Spirit Airlines38211%78.3%5.7 min1.0%
DL Delta Air Lines36310%82.1%6.4 min0.3%
WN Southwest Airlines3239%79.9%5.0 min0.0%
UA United Airlines3039%82.8%8.9 min1.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
SJU–MCOSan Juan to Orlando60376.6%7.4 min0.2%
SJU–JFKSan Juan to New York38477.3%9.2 min0.5%
SJU–MIASan Juan to Miami24472.1%9.7 min0.0%
SJU–EWRSan Juan to Newark22569.3%19.4 min0.4%
SJU–FLLSan Juan to Fort Lauderdale22366.4%18.9 min0.9%
SJU–BOSSan Juan to Boston20870.2%19.3 min0.5%
SJU–ATLSan Juan to Atlanta20380.8%10.4 min1.0%
SJU–PHLSan Juan to Philadelphia16566.7%20.5 min0.0%
SJU–TPASan Juan to Tampa14268.3%16.2 min0.0%
SJU–ORDSan Juan to Chicago13482.1%-1.7 min0.7%
SJU–BWISan Juan to Baltimore13190.1%-6.9 min0.0%
SJU–CLTSan Juan to Charlotte12575.2%8.3 min0.0%

By scheduled departure hour

On-time share:under 62%6270768288% and over
Share of departures that left less than 15 minutes late, by scheduled hour (local time), December 2024.

Delay causes

BTS cause categoryShare of delay minutesNational, Dec 2024Minutes
Air carrier31.9%34.3%20,381
Late-arriving aircraft52.6%40.2%33,561
National Aviation System14.9%17.8%9,481
Extreme weather0.4%7.5%279
Security0.2%0.2%134
63,836 delay minutes on 893 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← November 2024January 2025 →

Questions and answers

How many flights left SJU on time in December 2024?

74.7% of 3,517 scheduled domestic departures left less than 15 minutes late, and 74.0% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 75.8% of 3,057 departures left on time and 0.2% were cancelled, against 74.7% and 0.4% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for SJU · methodology · corrections.