LaGuardia in September 2023

73.8%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 September 2023, reporting carriers scheduled 13,372 domestic departures from LaGuardia (LGA). 73.8% left less than 15 minutes late and 72.7% reached their destination on time; 6.0% were cancelled.

Nationally that month, 80.5% of flights departed on time and 80.1% arrived on time, so LGA departures were 6.7 points below the national departure figure.

Flights arriving at LGA that month were on time 73.5% of the time (13,371 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 37%, air carrier 32% and national aviation system 24%.

On time 72.7%
Arrived 15+ minutes late 20.9%
Cancelled 6.0%
Diverted 0.3%

Every scheduled departure from LGA in September 2023, judged by arrival at the destination.

September 2023 against a year earlier, the airport's year and the nation

Measure	Sep 2023	Year earlier	LGA, 12 months to Jul 2026	All reported flights, Sep 2023
Departed on time	73.8%	—	72.6%	80.5%
Arrived on time	72.7%	—	69.9%	80.1%
Cancelled	6.0%	—	4.6%	1.2%
Average departure delay (late minutes only)	19.7 min	—	19.3 min	14.1 min
Scheduled departures a day	446	—	372	18,978
Scheduled departures	13,372	—	135,840	569,338

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
YX Republic Airline	3,437	26%	75.9%	1.7 min	8.6%
9E Endeavor Air	2,632	20%	72.5%	3.1 min	8.4%
DL Delta Air Lines	2,140	16%	70.9%	14.9 min	2.9%
AA American Airlines	1,521	11%	74.7%	9.2 min	3.5%
B6 JetBlue Airways	1,234	9%	61.6%	24.9 min	4.7%
WN Southwest Airlines	1,012	8%	72.7%	12.6 min	4.3%
UA United Airlines	675	5%	83.0%	2.7 min	3.0%
NK Spirit Airlines	433	3%	71.6%	5.1 min	6.7%
OO SkyWest Airlines	172	1%	74.4%	33.2 min	4.1%
F9 Frontier Airlines	116	1%	51.7%	22.1 min	12.9%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
LGA–ORD	New York to Chicago	771	74.8%	11.9 min	4.0%
LGA–BOS	New York to Boston	660	63.5%	22.3 min	6.5%
LGA–ATL	New York to Atlanta	652	71.2%	13.3 min	3.2%
LGA–DFW	New York to Dallas/Fort Worth	479	72.2%	15.7 min	3.1%
LGA–DEN	New York to Denver	452	81.2%	-2.6 min	3.8%
LGA–MCO	New York to Orlando	434	63.6%	18.1 min	4.8%
LGA–CLT	New York to Charlotte	431	80.7%	2.6 min	5.8%
LGA–MIA	New York to Miami	424	67.2%	7.8 min	2.8%
LGA–DCA	New York to Washington	408	76.7%	4.5 min	5.1%
LGA–BNA	New York to Nashville	393	69.7%	11.4 min	6.4%
LGA–DTW	New York to Detroit	366	76.5%	8.4 min	5.7%
LGA–FLL	New York to Fort Lauderdale	365	67.9%	16.0 min	3.6%

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), September 2023.

Delay causes

BTS cause category	Share of delay minutes	National, Sep 2023	Minutes
Air carrier	31.5%	36.4%	78,123
Late-arriving aircraft	37.4%	38.3%	92,753
National Aviation System	23.7%	19.9%	58,751
Extreme weather	7.3%	5.1%	18,229
Security	0.1%	0.2%	278

248,134 delay minutes on 2,801 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 LGA on time in September 2023?

73.8% of 13,372 scheduled domestic departures left less than 15 minutes late, and 72.7% reached their destination on time. The national figures that month were 80.5% and 80.1%.

How does that compare with a year earlier?

September 2022 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 September 2023; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for LGA · methodology · corrections.