Philadelphia International in December 2024

77.1%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 December 2024, reporting carriers scheduled 7,464 domestic departures from Philadelphia International (PHL). 77.1% left less than 15 minutes late and 76.5% reached their destination on time; 0.5% were cancelled.

Nationally that month, 77.8% of flights departed on time and 78.1% arrived on time, so PHL departures were 0.7 points below the national departure figure.

A year earlier, in December 2023, the airport had 7,047 departures with 82.1% leaving on time: a change of −5.0 points, with flights up 6%.

Flights arriving at PHL that month were on time 76.5% of the time (7,460 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 32% and national aviation system 18%.

On time 76.5%
Arrived 15+ minutes late 22.7%
Cancelled 0.5%
Diverted 0.3%

Every scheduled departure from PHL in December 2024, judged by arrival at the destination.

December 2024 against a year earlier, the airport's year and the nation

Measure	Dec 2024	Dec 2023	PHL, 12 months to Jul 2026	All reported flights, Dec 2024
Departed on time	77.1%	82.1%	74.1%	77.8%
Arrived on time	76.5%	83.0%	73.4%	78.1%
Cancelled	0.5%	0.3%	2.7%	0.7%
Average departure delay (late minutes only)	18.4 min	13.5 min	20.2 min	16.6 min
Scheduled departures a day	249	235	276	19,686
Scheduled departures	7,464	7,047	100,793	590,581

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	3,175	43%	77.5%	8.4 min	0.3%
OH PSA Airlines	1,139	15%	70.9%	17.3 min	0.2%
F9 Frontier Airlines	827	11%	70.1%	10.5 min	1.3%
YX Republic Airline	541	7%	80.8%	3.6 min	0.4%
DL Delta Air Lines	488	7%	83.2%	2.2 min	0.0%
WN Southwest Airlines	450	6%	80.0%	4.9 min	0.2%
NK Spirit Airlines	343	5%	74.9%	11.9 min	0.6%
UA United Airlines	324	4%	83.0%	0.6 min	0.9%
B6 JetBlue Airways	79	1%	75.9%	3.6 min	3.8%
AS Alaska Airlines	55	1%	60.0%	10.7 min	0.0%
OO SkyWest Airlines	26	0%	76.9%	4.2 min	0.0%
9E Endeavor Air	17	0%	88.2%	-2.4 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHL–ATL	Philadelphia to Atlanta	512	80.1%	5.6 min	0.0%
PHL–MCO	Philadelphia to Orlando	472	76.9%	6.1 min	0.4%
PHL–BOS	Philadelphia to Boston	395	77.7%	6.9 min	1.5%
PHL–ORD	Philadelphia to Chicago	329	83.9%	4.8 min	0.0%
PHL–CLT	Philadelphia to Charlotte	315	76.2%	11.2 min	0.0%
PHL–MIA	Philadelphia to Miami	291	72.9%	11.4 min	0.7%
PHL–DFW	Philadelphia to Dallas/Fort Worth	289	76.5%	9.1 min	1.4%
PHL–DTW	Philadelphia to Detroit	242	77.3%	15.7 min	0.4%
PHL–DEN	Philadelphia to Denver	222	80.2%	0.5 min	0.0%
PHL–BNA	Philadelphia to Nashville	217	80.2%	2.2 min	0.0%
PHL–LAX	Philadelphia to Los Angeles	207	80.7%	3.1 min	0.0%
PHL–TPA	Philadelphia to Tampa	205	72.2%	9.5 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), December 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2024	Minutes
Air carrier	32.1%	34.3%	40,930
Late-arriving aircraft	44.9%	40.2%	57,278
National Aviation System	18.4%	17.8%	23,514
Extreme weather	4.5%	7.5%	5,711
Security	0.2%	0.2%	250

127,683 delay minutes on 1,698 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 PHL on time in December 2024?

77.1% of 7,464 scheduled domestic departures left less than 15 minutes late, and 76.5% reached their destination on time. The national figures that month were 77.8% and 78.1%.

How does that compare with a year earlier?

In December 2023, 82.1% of 7,047 departures left on time and 0.3% were cancelled, against 77.1% and 0.5% in December 2024.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for December 2024; 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.