On-Time Report

Airports › Newark (EWR) › May 2025

Airport month · May 2025

Newark Liberty International in May 2025

66.7%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 9,070 domestic departures from Newark Liberty International (EWR). 66.7% left less than 15 minutes late and 61.5% reached their destination on time; 5.0% were cancelled.

Nationally that month, 76.7% of flights departed on time and 75.4% arrived on time, so EWR departures were 10.0 points below the national departure figure.

A year earlier, in May 2024, the airport had 11,358 departures with 75.3% leaving on time: a change of −8.6 points, with flights down 20%.

Flights arriving at EWR that month were on time 49.8% of the time (9,062 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 54%, national aviation system 28% and air carrier 18%.

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

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

MeasureMay 2025May 2024EWR, 12 months to Jul 2026All reported flights, May 2025
Departed on time66.7%75.3%77.3%76.7%
Arrived on time61.5%73.9%75.3%75.4%
Cancelled5.0%1.3%3.1%1.0%
Average departure delay (late minutes only)30.2 min17.9 min17.0 min17.5 min
Scheduled departures a day30237933620,188
Scheduled departures9,07011,358122,705605,648

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
UA United Airlines4,99155%66.4%15.5 min2.9%
YX Republic Airline1,25014%61.9%10.5 min14.5%
NK Spirit Airlines7268%51.8%44.4 min6.6%
DL Delta Air Lines5376%48.4%58.1 min2.0%
B6 JetBlue Airways5196%57.8%21.5 min3.3%
AA American Airlines4965%62.9%25.8 min3.8%
AS Alaska Airlines3083%50.0%63.8 min2.3%
MQ Envoy Air961%32.3%48.9 min21.9%
F9 Frontier Airlines931%47.3%49.9 min3.2%
G4 Allegiant Air541%27.8%74.8 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
EWR–ORDNewark to Chicago51463.0%21.3 min5.6%
EWR–MCONewark to Orlando51057.6%27.7 min3.9%
EWR–LAXNewark to Los Angeles47466.7%17.9 min3.0%
EWR–ATLNewark to Atlanta46843.8%54.0 min2.4%
EWR–SFONewark to San Francisco41870.8%9.9 min3.6%
EWR–FLLNewark to Fort Lauderdale33462.9%23.3 min3.9%
EWR–MIANewark to Miami28859.4%35.5 min3.5%
EWR–CLTNewark to Charlotte26365.0%18.2 min3.8%
EWR–BOSNewark to Boston26251.9%38.3 min8.0%
EWR–IAHNewark to Houston25560.8%22.6 min1.6%
EWR–DFWNewark to Dallas/Fort Worth25454.7%34.5 min5.5%
EWR–PBINewark to West Palm Beach/Palm Beach25463.0%16.8 min4.3%

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 categoryShare of delay minutesNational, May 2025Minutes
Air carrier18.2%29.3%50,022
Late-arriving aircraft53.5%37.8%147,381
National Aviation System27.6%25.9%75,992
Extreme weather0.7%6.9%2,029
Security0.0%0.1%110
275,534 delay minutes on 3,021 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← April 2025June 2025 →

Questions and answers

How many flights left EWR on time in May 2025?

66.7% of 9,070 scheduled domestic departures left less than 15 minutes late, and 61.5% 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, 75.3% of 11,358 departures left on time and 1.3% were cancelled, against 66.7% and 5.0% 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 EWR · methodology · corrections.