John F. Kennedy International in May 2025

79.1%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 2025, reporting carriers scheduled 9,021 domestic departures from John F. Kennedy International (JFK). 79.1% left less than 15 minutes late and 74.4% reached their destination on time; 0.5% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so JFK departures were 2.4 points above the national departure figure.

A year earlier, in May 2024, the airport had 10,627 departures with 77.8% leaving on time: a change of +1.3 points, with flights down 15%.

Flights arriving at JFK that month were on time 72.7% of the time (9,016 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 34%, late-arriving aircraft 33% and air carrier 31%.

On time 74.4%
Arrived 15+ minutes late 24.9%
Cancelled 0.5%
Diverted 0.2%

Every scheduled departure from JFK in May 2025, judged by arrival at the destination.

May 2025 against a year earlier, the airport's year and the nation

Measure	May 2025	May 2024	JFK, 12 months to Jul 2026	All reported flights, May 2025
Departed on time	79.1%	77.8%	75.5%	76.7%
Arrived on time	74.4%	76.3%	72.8%	75.4%
Cancelled	0.5%	0.8%	3.5%	1.0%
Average departure delay (late minutes only)	15.8 min	16.9 min	18.2 min	17.5 min
Scheduled departures a day	301	354	281	20,188
Scheduled departures	9,021	10,627	102,683	605,648

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	3,190	35%	72.5%	7.7 min	0.4%
DL Delta Air Lines	2,656	29%	76.7%	4.1 min	0.2%
YX Republic Airline	1,271	14%	71.4%	11.7 min	1.3%
AA American Airlines	1,227	14%	80.2%	2.9 min	0.5%
AS Alaska Airlines	341	4%	69.2%	11.3 min	0.6%
F9 Frontier Airlines	277	3%	68.2%	14.7 min	0.0%
HA Hawaiian Airlines	31	0%	77.4%	1.0 min	0.0%
OO SkyWest Airlines	28	0%	71.4%	10.9 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
JFK–LAX	New York to Los Angeles	874	81.0%	-4.1 min	0.0%
JFK–SFO	New York to San Francisco	622	82.6%	-6.2 min	0.0%
JFK–MIA	New York to Miami	463	74.7%	9.1 min	0.9%
JFK–BOS	New York to Boston	459	65.6%	13.8 min	0.7%
JFK–MCO	New York to Orlando	429	66.2%	16.1 min	0.5%
JFK–ATL	New York to Atlanta	392	66.6%	19.8 min	0.3%
JFK–LAS	New York to Las Vegas	361	85.3%	-9.4 min	0.0%
JFK–SJU	New York to San Juan	335	83.0%	-1.6 min	0.0%
JFK–FLL	New York to Fort Lauderdale	300	74.0%	9.0 min	0.7%
JFK–SEA	New York to Seattle	279	76.0%	1.3 min	0.4%
JFK–DCA	New York to Washington	248	58.9%	27.3 min	2.4%
JFK–PHX	New York to Phoenix	238	82.8%	-2.1 min	0.0%

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), May 2025.

Delay causes

BTS cause category	Share of delay minutes	National, May 2025	Minutes
Air carrier	30.5%	29.3%	47,228
Late-arriving aircraft	32.5%	37.8%	50,199
National Aviation System	33.9%	25.9%	52,365
Extreme weather	2.9%	6.9%	4,540
Security	0.2%	0.1%	268

154,600 delay minutes on 2,246 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 2025?

79.1% of 9,021 scheduled domestic departures left less than 15 minutes late, and 74.4% reached their destination on time. The national figures that month were 76.7% and 75.4%.

How does that compare with a year earlier?

In May 2024, 77.8% of 10,627 departures left on time and 0.8% were cancelled, against 79.1% and 0.5% in May 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for May 2025; 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.