Philadelphia International in July 2025

63.1%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 July 2025, reporting carriers scheduled 9,013 domestic departures from Philadelphia International (PHL). 63.1% left less than 15 minutes late and 61.3% reached their destination on time; 5.2% were cancelled.

Nationally that month, 69.7% of flights departed on time and 69.0% arrived on time, so PHL departures were 6.6 points below the national departure figure.

A year earlier, in July 2024, the airport had 9,968 departures with 63.7% leaving on time: a change of −0.6 points, with flights down 10%.

Flights arriving at PHL that month were on time 61.7% of the time (9,014 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 41%, air carrier 31% and national aviation system 20%.

On time 61.3%
Arrived 15+ minutes late 32.9%
Cancelled 5.2%
Diverted 0.5%

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

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

Measure	Jul 2025	Jul 2024	PHL, 12 months to Jul 2026	All reported flights, Jul 2025
Departed on time	63.1%	63.7%	74.1%	69.7%
Arrived on time	61.3%	63.5%	73.4%	69.0%
Cancelled	5.2%	3.7%	2.7%	2.5%
Average departure delay (late minutes only)	34.9 min	30.9 min	20.2 min	24.3 min
Scheduled departures a day	300	332	276	21,048
Scheduled departures	9,013	9,968	100,793	631,428

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	4,486	50%	59.9%	30.1 min	5.7%
OH PSA Airlines	1,269	14%	60.0%	34.3 min	8.4%
F9 Frontier Airlines	726	8%	56.1%	35.2 min	4.7%
YX Republic Airline	713	8%	66.2%	18.0 min	6.6%
DL Delta Air Lines	586	7%	69.3%	23.2 min	1.4%
WN Southwest Airlines	433	5%	63.3%	26.7 min	1.2%
UA United Airlines	341	4%	71.0%	22.6 min	0.9%
NK Spirit Airlines	278	3%	61.5%	22.9 min	3.2%
B6 JetBlue Airways	120	1%	62.5%	21.4 min	3.3%
AS Alaska Airlines	61	1%	47.5%	38.8 min	1.6%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
PHL–ATL	Philadelphia to Atlanta	528	66.1%	18.2 min	3.2%
PHL–MCO	Philadelphia to Orlando	427	56.7%	32.0 min	3.7%
PHL–BOS	Philadelphia to Boston	420	62.9%	24.8 min	6.7%
PHL–ORD	Philadelphia to Chicago	403	56.3%	38.1 min	6.2%
PHL–DEN	Philadelphia to Denver	317	65.9%	28.9 min	2.5%
PHL–DFW	Philadelphia to Dallas/Fort Worth	295	58.3%	29.8 min	8.5%
PHL–CLT	Philadelphia to Charlotte	288	68.4%	25.7 min	3.8%
PHL–DTW	Philadelphia to Detroit	281	64.4%	31.4 min	4.3%
PHL–LAX	Philadelphia to Los Angeles	263	67.7%	16.6 min	3.4%
PHL–FLL	Philadelphia to Fort Lauderdale	234	65.0%	16.5 min	5.1%
PHL–BNA	Philadelphia to Nashville	233	65.7%	26.7 min	3.4%
PHL–MIA	Philadelphia to Miami	220	56.8%	45.7 min	1.8%

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), July 2025.

Delay causes

BTS cause category	Share of delay minutes	National, Jul 2025	Minutes
Air carrier	30.8%	31.1%	93,576
Late-arriving aircraft	40.9%	40.8%	124,343
National Aviation System	19.6%	20.7%	59,441
Extreme weather	8.6%	7.3%	26,251
Security	0.1%	0.1%	323

303,934 delay minutes on 2,965 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 July 2025?

63.1% of 9,013 scheduled domestic departures left less than 15 minutes late, and 61.3% reached their destination on time. The national figures that month were 69.7% and 69.0%.

How does that compare with a year earlier?

In July 2024, 63.7% of 9,968 departures left on time and 3.7% were cancelled, against 63.1% and 5.2% in July 2025.

Provenance

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