Philadelphia International in December 2025

68.8%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 December 2025, reporting carriers scheduled 7,468 domestic departures from Philadelphia International (PHL). 68.8% left less than 15 minutes late and 63.6% reached their destination on time; 2.4% were cancelled.

Nationally that month, 72.0% of flights departed on time and 71.9% arrived on time, so PHL departures were 3.2 points below the national departure figure.

A year earlier, in December 2024, the airport had 7,464 departures with 77.1% leaving on time: a change of −8.3 points, with flights up 0%.

Flights arriving at PHL that month were on time 70.7% of the time (7,477 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 45%, air carrier 27% and national aviation system 23%.

On time 63.6%
Arrived 15+ minutes late 33.9%
Cancelled 2.4%
Diverted 0.2%

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

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

Measure	Dec 2025	Dec 2024	PHL, 12 months to Jul 2026	All reported flights, Dec 2025
Departed on time	68.8%	77.1%	74.1%	72.0%
Arrived on time	63.6%	76.5%	73.4%	71.9%
Cancelled	2.4%	0.5%	2.7%	1.5%
Average departure delay (late minutes only)	26.1 min	18.4 min	20.2 min	21.2 min
Scheduled departures a day	249	249	276	19,410
Scheduled departures	7,468	7,464	100,793	582,304

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	3,115	42%	67.4%	17.2 min	1.5%
OH PSA Airlines	1,365	18%	55.2%	31.7 min	4.9%
F9 Frontier Airlines	736	10%	55.8%	33.5 min	3.7%
YX Republic Airline	534	7%	73.8%	14.9 min	1.7%
DL Delta Air Lines	506	7%	67.6%	12.5 min	3.4%
WN Southwest Airlines	480	6%	57.3%	23.5 min	0.0%
UA United Airlines	343	5%	68.2%	16.0 min	0.0%
NK Spirit Airlines	181	2%	70.2%	13.3 min	3.3%
B6 JetBlue Airways	124	2%	60.5%	18.0 min	2.4%
AS Alaska Airlines	62	1%	37.1%	28.1 min	0.0%
OO SkyWest Airlines	22	0%	63.6%	117.6 min	0.0%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHL–ATL	Philadelphia to Atlanta	458	66.4%	10.5 min	4.4%
PHL–MCO	Philadelphia to Orlando	449	61.5%	28.2 min	1.8%
PHL–BOS	Philadelphia to Boston	365	74.5%	11.0 min	1.6%
PHL–ORD	Philadelphia to Chicago	343	63.8%	21.3 min	1.7%
PHL–FLL	Philadelphia to Fort Lauderdale	325	67.1%	25.6 min	1.2%
PHL–CLT	Philadelphia to Charlotte	300	68.3%	15.1 min	1.7%
PHL–MIA	Philadelphia to Miami	277	74.7%	14.2 min	1.8%
PHL–DFW	Philadelphia to Dallas/Fort Worth	270	63.0%	26.9 min	3.3%
PHL–DEN	Philadelphia to Denver	236	54.7%	22.9 min	1.7%
PHL–DTW	Philadelphia to Detroit	232	63.4%	35.5 min	3.4%
PHL–TPA	Philadelphia to Tampa	211	59.7%	33.7 min	0.9%
PHL–BNA	Philadelphia to Nashville	204	62.7%	25.7 min	1.0%

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 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Dec 2025	Minutes
Air carrier	26.6%	33.3%	53,506
Late-arriving aircraft	45.2%	41.1%	90,751
National Aviation System	22.6%	19.1%	45,354
Extreme weather	5.5%	6.4%	11,094
Security	0.1%	0.2%	192

200,897 delay minutes on 2,528 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 2025?

68.8% of 7,468 scheduled domestic departures left less than 15 minutes late, and 63.6% reached their destination on time. The national figures that month were 72.0% and 71.9%.

How does that compare with a year earlier?

In December 2024, 77.1% of 7,464 departures left on time and 0.5% were cancelled, against 68.8% and 2.4% in December 2025.

Provenance

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