On-Time Report

Airports › New York (JFK) › September 2025

Airport month · September 2025

John F. Kennedy International in September 2025

84.0%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 September 2025, reporting carriers scheduled 8,567 domestic departures from John F. Kennedy International (JFK). 84.0% left less than 15 minutes late and 81.0% reached their destination on time; 0.7% were cancelled.

Nationally that month, 83.1% of flights departed on time and 82.8% arrived on time, so JFK departures were 0.9 points above the national departure figure.

A year earlier, in September 2024, the airport had 10,376 departures with 86.1% leaving on time: a change of −2.1 points, with flights down 17%.

Flights arriving at JFK that month were on time 84.1% of the time (8,568 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, national aviation system 39%, air carrier 31% and late-arriving aircraft 27%.

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

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

MeasureSep 2025Sep 2024JFK, 12 months to Jul 2026All reported flights, Sep 2025
Departed on time84.0%86.1%75.5%83.1%
Arrived on time81.0%84.7%72.8%82.8%
Cancelled0.7%0.2%3.5%0.5%
Average departure delay (late minutes only)12.4 min10.0 min18.2 min12.2 min
Scheduled departures a day28634628118,748
Scheduled departures8,56710,376102,683562,439

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
B6 JetBlue Airways2,84433%78.7%2.9 min0.6%
DL Delta Air Lines2,56030%83.9%-3.3 min0.3%
YX Republic Airline1,41216%79.5%3.2 min1.6%
AA American Airlines1,13013%83.1%0.8 min0.6%
AS Alaska Airlines3004%77.0%2.9 min2.0%
F9 Frontier Airlines2903%81.0%4.1 min0.0%
HA Hawaiian Airlines310%77.4%27.9 min3.2%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
JFK–LAXNew York to Los Angeles85682.7%1.2 min0.6%
JFK–SFONew York to San Francisco57985.3%-6.3 min0.3%
JFK–BOSNew York to Boston54764.7%18.0 min2.0%
JFK–ATLNew York to Atlanta38884.3%-1.6 min0.3%
JFK–MIANew York to Miami35979.1%8.1 min0.3%
JFK–MCONew York to Orlando34982.8%1.3 min0.3%
JFK–LASNew York to Las Vegas33781.6%-3.6 min0.0%
JFK–SEANew York to Seattle27083.0%-6.6 min0.7%
JFK–DCANew York to Washington26281.7%1.0 min1.5%
JFK–FLLNew York to Fort Lauderdale25978.4%1.4 min0.4%
JFK–SJUNew York to San Juan24572.7%5.6 min0.0%
JFK–CLTNew York to Charlotte20683.5%7.3 min1.0%

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), September 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Sep 2025Minutes
Air carrier31.0%34.3%35,322
Late-arriving aircraft27.2%37.4%30,997
National Aviation System39.3%22.6%44,844
Extreme weather2.4%5.6%2,738
Security0.2%0.1%185
114,086 delay minutes on 1,546 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← August 2025October 2025 →

Questions and answers

How many flights left JFK on time in September 2025?

84.0% of 8,567 scheduled domestic departures left less than 15 minutes late, and 81.0% reached their destination on time. The national figures that month were 83.1% and 82.8%.

How does that compare with a year earlier?

In September 2024, 86.1% of 10,376 departures left on time and 0.2% were cancelled, against 84.0% and 0.7% in September 2025.

Provenance

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