John F. Kennedy International in June 2026

76.0%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 2026, reporting carriers scheduled 8,750 domestic departures from John F. Kennedy International (JFK). 76.0% left less than 15 minutes late and 73.1% reached their destination on time; 2.0% were cancelled.

Nationally that month, 72.2% of flights departed on time and 72.8% arrived on time, so JFK departures were 3.8 points above the national departure figure.

A year earlier, in June 2025, the airport had 8,848 departures with 71.8% leaving on time: a change of +4.2 points, with flights down 1%.

Flights arriving at JFK that month were on time 74.1% of the time (8,752 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 38%, air carrier 31% and national aviation system 28%.

On time 73.1%
Arrived 15+ minutes late 24.4%
Cancelled 2.0%
Diverted 0.4%

Every scheduled departure from JFK in June 2026, judged by arrival at the destination.

June 2026 against a year earlier, the airport's year and the nation

Measure	Jun 2026	Jun 2025	JFK, 12 months to Jul 2026	All reported flights, Jun 2026
Departed on time	76.0%	71.8%	75.5%	72.2%
Arrived on time	73.1%	66.4%	72.8%	72.8%
Cancelled	2.0%	2.4%	3.5%	1.6%
Average departure delay (late minutes only)	19.6 min	23.9 min	18.2 min	20.6 min
Scheduled departures a day	292	295	281	20,253
Scheduled departures	8,750	8,848	102,683	607,577

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
B6 JetBlue Airways	3,215	37%	69.5%	11.4 min	2.2%
DL Delta Air Lines	2,575	29%	76.0%	5.1 min	1.0%
AA American Airlines	1,373	16%	74.4%	11.6 min	1.8%
YX Republic Airline	1,200	14%	75.8%	4.2 min	4.5%
AS Alaska Airlines	357	4%	71.4%	11.3 min	0.6%
F9 Frontier Airlines	30	0%	66.7%	35.3 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
JFK–LAX	New York to Los Angeles	822	69.3%	15.1 min	1.2%
JFK–SFO	New York to San Francisco	611	60.2%	21.2 min	1.0%
JFK–BOS	New York to Boston	428	72.7%	11.2 min	3.5%
JFK–MCO	New York to Orlando	373	75.1%	4.2 min	1.1%
JFK–MIA	New York to Miami	360	78.3%	12.2 min	1.7%
JFK–ATL	New York to Atlanta	342	79.5%	3.5 min	0.6%
JFK–LAS	New York to Las Vegas	317	78.2%	3.5 min	0.3%
JFK–SJU	New York to San Juan	289	77.9%	3.7 min	1.0%
JFK–FLL	New York to Fort Lauderdale	285	78.6%	-0.9 min	3.2%
JFK–SEA	New York to Seattle	270	75.6%	12.3 min	0.7%
JFK–PHX	New York to Phoenix	257	73.9%	6.9 min	0.4%
JFK–DCA	New York to Washington	210	64.8%	14.0 min	7.1%

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 2026.

Delay causes

BTS cause category	Share of delay minutes	National, Jun 2026	Minutes
Air carrier	30.8%	30.8%	51,490
Late-arriving aircraft	38.0%	42.1%	63,487
National Aviation System	27.6%	20.3%	46,151
Extreme weather	3.3%	6.7%	5,516
Security	0.2%	0.1%	366

167,010 delay minutes on 2,138 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 June 2026?

76.0% of 8,750 scheduled domestic departures left less than 15 minutes late, and 73.1% reached their destination on time. The national figures that month were 72.2% and 72.8%.

How does that compare with a year earlier?

In June 2025, 71.8% of 8,848 departures left on time and 2.4% were cancelled, against 76.0% and 2.0% in June 2026.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for June 2026; 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.