John F. Kennedy International in May 2024

77.8%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 May 2024, reporting carriers scheduled 10,627 domestic departures from John F. Kennedy International (JFK). 77.8% left less than 15 minutes late and 76.3% reached their destination on time; 0.8% were cancelled.

Nationally that month, 73.4% of flights departed on time and 72.3% arrived on time, so JFK departures were 4.4 points above the national departure figure.

Flights arriving at JFK that month were on time 76.1% of the time (10,623 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, air carrier 37%, national aviation system 31% and late-arriving aircraft 30%.

On time 76.3%
Arrived 15+ minutes late 22.6%
Cancelled 0.8%
Diverted 0.3%

Every scheduled departure from JFK in May 2024, judged by arrival at the destination.

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

Measure	May 2024	Year earlier	JFK, 12 months to Jul 2026	All reported flights, May 2024
Departed on time	77.8%	—	75.5%	73.4%
Arrived on time	76.3%	—	72.8%	72.3%
Cancelled	0.8%	—	3.5%	1.4%
Average departure delay (late minutes only)	16.9 min	—	18.2 min	20.8 min
Scheduled departures a day	354	—	281	20,325
Scheduled departures	10,627	—	102,683	609,743

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	3,196	30%	72.9%	8.5 min	0.8%
DL Delta Air Lines	2,679	25%	74.8%	8.0 min	0.1%
9E Endeavor Air	1,503	14%	81.7%	3.6 min	1.8%
YX Republic Airline	1,400	13%	84.1%	0.1 min	1.4%
AA American Airlines	1,229	12%	74.2%	10.7 min	1.0%
AS Alaska Airlines	341	3%	76.0%	9.0 min	0.6%
OO SkyWest Airlines	248	2%	69.4%	23.0 min	0.8%
HA Hawaiian Airlines	31	0%	77.4%	2.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
JFK–LAX	New York to Los Angeles	826	77.4%	4.3 min	0.0%
JFK–SFO	New York to San Francisco	599	66.8%	12.1 min	0.0%
JFK–BOS	New York to Boston	494	77.3%	8.1 min	1.2%
JFK–MIA	New York to Miami	469	77.0%	7.8 min	0.9%
JFK–MCO	New York to Orlando	412	75.5%	3.6 min	0.5%
JFK–RDU	New York to Raleigh/Durham	372	78.2%	6.3 min	1.1%
JFK–FLL	New York to Fort Lauderdale	313	74.1%	7.7 min	0.6%
JFK–ATL	New York to Atlanta	312	71.5%	11.9 min	0.0%
JFK–CLT	New York to Charlotte	308	76.3%	7.5 min	1.0%
JFK–LAS	New York to Las Vegas	297	76.8%	6.1 min	0.0%
JFK–SJU	New York to San Juan	280	72.1%	10.3 min	0.0%
JFK–SEA	New York to Seattle	279	81.0%	0.4 min	0.4%

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), May 2024.

Delay causes

BTS cause category	Share of delay minutes	National, May 2024	Minutes
Air carrier	37.3%	29.8%	65,639
Late-arriving aircraft	29.5%	43.0%	51,880
National Aviation System	31.1%	20.1%	54,776
Extreme weather	2.0%	7.0%	3,461
Security	0.1%	0.1%	95

175,851 delay minutes on 2,398 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 JFK on time in May 2024?

77.8% of 10,627 scheduled domestic departures left less than 15 minutes late, and 76.3% reached their destination on time. The national figures that month were 73.4% and 72.3%.

How does that compare with a year earlier?

May 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 May 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for JFK · methodology · corrections.