Luis Munoz Marin International in June 2024

70.7%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 June 2024, reporting carriers scheduled 3,409 domestic departures from Luis Munoz Marin International (SJU). 70.7% left less than 15 minutes late and 68.5% reached their destination on time; 1.8% were cancelled.

Nationally that month, 73.7% of flights departed on time and 73.9% arrived on time, so SJU departures were 3.0 points below the national departure figure.

Flights arriving at SJU that month were on time 66.1% of the time (3,411 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 40%, air carrier 40% and national aviation system 19%.

On time 68.5%
Arrived 15+ minutes late 28.9%
Cancelled 1.8%
Diverted 0.8%

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

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

Measure	Jun 2024	Year earlier	SJU, 12 months to Jul 2026	All reported flights, Jun 2024
Departed on time	70.7%	—	74.5%	73.7%
Arrived on time	68.5%	—	75.6%	73.9%
Cancelled	1.8%	—	2.0%	1.3%
Average departure delay (late minutes only)	24.9 min	—	19.6 min	19.7 min
Scheduled departures a day	114	—	97	20,371
Scheduled departures	3,409	—	35,302	611,132

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	908	27%	71.3%	14.9 min	1.0%
F9 Frontier Airlines	642	19%	56.2%	26.2 min	3.6%
NK Spirit Airlines	502	15%	72.9%	11.9 min	3.0%
WN Southwest Airlines	474	14%	67.7%	12.9 min	1.1%
AA American Airlines	309	9%	62.5%	42.0 min	1.9%
DL Delta Air Lines	305	9%	82.6%	8.2 min	0.0%
UA United Airlines	269	8%	72.5%	13.3 min	1.1%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
SJU–MCO	San Juan to Orlando	600	68.5%	14.3 min	0.5%
SJU–JFK	San Juan to New York	333	78.7%	6.9 min	0.9%
SJU–MIA	San Juan to Miami	261	65.9%	27.5 min	4.2%
SJU–FLL	San Juan to Fort Lauderdale	255	68.6%	11.5 min	4.3%
SJU–BOS	San Juan to Boston	221	68.3%	16.9 min	1.4%
SJU–ATL	San Juan to Atlanta	196	75.0%	21.3 min	0.0%
SJU–EWR	San Juan to Newark	185	68.1%	24.0 min	2.2%
SJU–TPA	San Juan to Tampa	165	68.5%	15.3 min	0.6%
SJU–PHL	San Juan to Philadelphia	132	50.8%	25.5 min	2.3%
SJU–BWI	San Juan to Baltimore	123	71.5%	15.1 min	1.6%
SJU–ORD	San Juan to Chicago	121	65.3%	29.4 min	0.0%
SJU–DFW	San Juan to Dallas/Fort Worth	98	69.4%	33.6 min	3.1%

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), June 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2024	Minutes
Air carrier	39.5%	34.4%	32,173
Late-arriving aircraft	40.4%	41.5%	32,896
National Aviation System	18.7%	17.8%	15,235
Extreme weather	1.4%	6.0%	1,114
Security	0.1%	0.2%	79

81,497 delay minutes on 985 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left SJU on time in June 2024?

70.7% of 3,409 scheduled domestic departures left less than 15 minutes late, and 68.5% reached their destination on time. The national figures that month were 73.7% and 73.9%.

How does that compare with a year earlier?

June 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 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.