On-Time Report

Airports › Philadelphia (PHL) › April 2025

Airport month · April 2025

Philadelphia International in April 2025

78.8%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 April 2025, reporting carriers scheduled 8,603 domestic departures from Philadelphia International (PHL). 78.8% left less than 15 minutes late and 76.9% reached their destination on time; 0.6% were cancelled.

Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so PHL departures were 1.8 points below the national departure figure.

A year earlier, in April 2024, the airport had 7,893 departures with 81.9% leaving on time: a change of −3.1 points, with flights up 9%.

Flights arriving at PHL that month were on time 77.2% of the time (8,604 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 46%, air carrier 35% and national aviation system 16%.

Every scheduled departure from PHL in April 2025, judged by arrival at the destination.

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

MeasureApr 2025Apr 2024PHL, 12 months to Jul 2026All reported flights, Apr 2025
Departed on time78.8%81.9%74.1%80.6%
Arrived on time76.9%81.6%73.4%79.5%
Cancelled0.6%0.6%2.7%0.8%
Average departure delay (late minutes only)16.8 min14.9 min20.2 min14.1 min
Scheduled departures a day28726327619,465
Scheduled departures8,6037,893100,793583,950

Airlines that month

Reporting carrierFlightsShareOn timeAvg arrival delayCancelled
AA American Airlines3,76044%76.7%7.7 min0.7%
OH PSA Airlines1,39716%72.4%16.2 min1.0%
F9 Frontier Airlines93011%71.9%12.5 min1.1%
YX Republic Airline6988%83.7%0.6 min0.0%
DL Delta Air Lines4886%83.4%2.6 min0.8%
NK Spirit Airlines4605%78.5%4.7 min0.0%
WN Southwest Airlines3844%79.2%5.3 min0.0%
UA United Airlines3234%81.7%5.8 min0.3%
B6 JetBlue Airways901%80.0%2.3 min1.1%
AS Alaska Airlines601%78.3%0.0 min0.0%
OO SkyWest Airlines130%69.2%12.3 min0.0%

Busiest routes that month

RouteCitiesFlightsOn timeAvg arrival delayCancelled
PHL–MCOPhiladelphia to Orlando54780.1%2.0 min0.4%
PHL–ATLPhiladelphia to Atlanta47075.1%13.6 min0.9%
PHL–BOSPhiladelphia to Boston46081.1%3.8 min0.7%
PHL–ORDPhiladelphia to Chicago35674.4%8.7 min1.4%
PHL–MIAPhiladelphia to Miami31880.2%7.6 min1.3%
PHL–TPAPhiladelphia to Tampa31475.8%10.1 min0.6%
PHL–CLTPhiladelphia to Charlotte29482.0%10.0 min0.3%
PHL–FLLPhiladelphia to Fort Lauderdale28378.8%4.3 min0.0%
PHL–DFWPhiladelphia to Dallas/Fort Worth26574.7%9.6 min3.4%
PHL–BNAPhiladelphia to Nashville22279.3%2.4 min0.0%
PHL–RDUPhiladelphia to Raleigh/Durham21975.8%7.4 min0.0%
PHL–DENPhiladelphia to Denver21672.7%16.9 min0.0%

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), April 2025.

Delay causes

BTS cause categoryShare of delay minutesNational, Apr 2025Minutes
Air carrier35.2%32.7%47,939
Late-arriving aircraft46.2%39.4%62,957
National Aviation System16.3%22.2%22,251
Extreme weather2.1%5.5%2,927
Security0.1%0.2%83
136,157 delay minutes on 1,908 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.
← March 2025May 2025 →

Questions and answers

How many flights left PHL on time in April 2025?

78.8% of 8,603 scheduled domestic departures left less than 15 minutes late, and 76.9% reached their destination on time. The national figures that month were 80.6% and 79.5%.

How does that compare with a year earlier?

In April 2024, 81.9% of 7,893 departures left on time and 0.6% were cancelled, against 78.8% and 0.6% in April 2025.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for PHL · methodology · corrections.