Airport month record
PHLJUL
Philadelphia International in July 2025
- Departures
- 9,013
- Month
- July 2025
- National, same month
- 71.1%
- Carriers
- 10
Historical statistics for July 2025, not live status or a forecast for this year’s July. For today’s conditions at PHL, see live FAA status.
PHL in July carries a cancellation problem, not just a delay problem: 5.3% of scheduled flights never operate, against 2.5% nationally. Of the ones that do fly, about two flights in three arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 9,013 flights, of which Republic Airways flew 713 at 71.2% on time.
Republic Airways is the most reliable of the six carriers covered here at 71.2% on time across 713 flights.
Key figures
On time
65.1%
Arrivals under 15 minutes late, of 8,491 completed departures
Avg delay
103 min
Across delayed arrivals only, not all flights
Cancelled
5.25%
Nationally in July: 2.45%
Whole year
75.7%
PHL across all twelve months
These figures cover 9,013 departures from Philadelphia International in July 2025. On time means an arrival less than 15 minutes after the scheduled gate time, the DOT's threshold, and the national comparison uses every US departure in the same month rather than the whole year.
Against the year
July next to PHL's other months
Against PHL's own year, July ran 11 points worse than the twelve-month rate of 75.7%, which makes it the worst of the twelve months in the data. Cancellations are where July stands out: 5.25% of scheduled departures were called off, 2.0 times the airport's rate across the year.
| Month | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| July 2025 (this page) | 9,013 | 65.1% | 103 min | 5.25% | C− |
| August 2025 | 9,120 | 72.2% | 79 min | 1.30% | C |
| September 2025 | 8,225 | 82.0% | 67 min | 0.53% | B+ |
| October 2025 | 9,306 | 77.5% | 72 min | 0.44% | B+ |
| November 2025 | 7,499 | 77.8% | 80 min | 2.00% | B |
| December 2025 | 7,468 | 65.3% | 80 min | 2.36% | C |
| January 2026 | 7,049 | 75.5% | 84 min | 7.86% | B− |
| February 2026 | 6,686 | 80.0% | 70 min | 6.09% | B− |
| March 2026 | 7,778 | 76.7% | 86 min | 3.15% | B− |
| April 2026 | 8,692 | 80.8% | 73 min | 0.68% | B+ |
| May 2026 | 9,251 | 80.7% | 74 min | 1.09% | B |
| June 2026 | 9,707 | 74.4% | 85 min | 2.73% | C |
Departure window
The best time of day to leave PHL in July
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 43 points, against 12 points between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am1,138 flights87.2%
- 8am–11am1,920 flights83.5%
- 11am–2pm1,319 flights72.6%
- 2pm–5pm1,338 flights57.2%
- 5pm–8pm2,373 flights44.6%
- 8pm–5am925 flights46.5%
Scale runs 35% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 44.6% on time, against 87.2% for the 5am–8am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 5pm–8pm window is the busiest, with 2,373 flights scheduled in it.
Across the week, Wednesday is the strongest day at 70.6% on time and Sunday the weakest at 59.8%. 11 points is a smaller lever than departure hour, but it is free.
Carrier by carrier
Which airlines ran best at PHL in July
The choice of carrier is not cosmetic here. Republic Airways arrives on time 71.2% of the time; Frontier Airlines manages 58.8%. Sample sizes sit next to every figure, because a two-point gap across 726 flights means less than a ten-point one.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlines | 4,486 | 64.0% | 102 min | 5.71% | D− |
| PSA Airlines | 1,269 | 65.8% | 121 min | 8.35% | C− |
| Frontier Airlines | 726 | 58.8% | 105 min | 4.68% | D− |
| Republic Airways | 713 | 71.2% | 87 min | 6.59% | C− |
| Delta Air Lines | 586 | 70.6% | 109 min | 1.37% | C |
| Southwest Airlines | 433 | 64.6% | 88 min | 1.15% | D |
| United Airlinesthin sample | 341 | 72.2% | 109 min | 0.88% | C+ |
| Spirit Airlinesthin sample | 278 | 63.6% | 84 min | 3.24% | D− |
| JetBlue Airwaysthin sample | 120 | 64.7% | 91 min | 3.33% | D− |
| Alaska Airlinesthin sample | 61 | 49.2% | 89 min | 1.64% | F |
PSA Airlines cancels 8.3% of what it schedules here, the highest in the table. A cancelled flight never appears in an on-time rate, so read that column alongside the punctuality one rather than after it.
Route by route
Busiest routes out of PHL in July
| Route | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| PHL to ATL · Atlanta | 528 | 68.7% | 82 min | 3.22% | C− |
| PHL to MCO · Orlando | 427 | 59.3% | 96 min | 3.75% | D− |
| PHL to BOS · Boston | 420 | 67.3% | 93 min | 6.67% | C− |
| PHL to ORD · Chicago | 403 | 60.2% | 112 min | 6.20% | D− |
| PHL to DEN · Denverthin sample | 317 | 68.8% | 115 min | 2.52% | C |
| PHL to DFW · Dallas-Fort Worththin sample | 295 | 64.4% | 100 min | 8.47% | D− |
| PHL to CLT · Charlottethin sample | 288 | 71.4% | 123 min | 3.82% | C− |
| PHL to DTW · Detroitthin sample | 281 | 67.5% | 120 min | 4.27% | C− |
| PHL to LAX · Los Angelesthin sample | 263 | 70.1% | 83 min | 3.42% | C− |
| PHL to FLL · Fort Lauderdalethin sample | 234 | 69.4% | 85 min | 5.13% | C− |
| PHL to BNA · Nashvillethin sample | 233 | 68.6% | 104 min | 3.43% | C− |
| PHL to MIA · Miamithin sample | 220 | 58.7% | 130 min | 1.82% | D |
| PHL to RDU · Raleighthin sample | 219 | 64.7% | 93 min | 7.31% | D− |
| PHL to PHX · Phoenixthin sample | 211 | 64.7% | 105 min | 4.27% | D− |
| PHL to SFO · San Franciscothin sample | 182 | 68.5% | 91 min | 2.20% | C |
| PHL to TPA · Tampathin sample | 179 | 68.6% | 108 min | 3.35% | C− |
| PHL to MSP · Minneapolisthin sample | 168 | 62.0% | 143 min | 1.19% | D |
| PHL to IND · Indianapolisthin sample | 159 | 61.6% | 80 min | 8.18% | D− |
| PHL to LAS · Las Vegasthin sample | 154 | 58.3% | 106 min | 5.19% | D− |
| PHL to MDW · Chicagothin sample | 154 | 54.7% | 102 min | 2.60% | F |
| PHL to IAH · Houstonthin sample | 151 | 66.9% | 99 min | 3.97% | C− |
| PHL to JAX · Jacksonvillethin sample | 143 | 65.6% | 93 min | 7.69% | C− |
| PHL to PIT · Pittsburghthin sample | 139 | 60.8% | 103 min | 10.07% | D− |
| PHL to STL · St. Louisthin sample | 135 | 62.1% | 87 min | 2.22% | D |
| PHL to SJU · San Juanthin sample | 132 | 43.7% | 132 min | 4.55% | F− |
Delay causes
What held PHL up in July
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 304,000 reported delay minutes.
- 41%Late-arriving aircraft
- 31%Carrier
- 20%National Airspace System
- 9%Extreme weather
- 0%Security
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 304,000 reported delay minutes here, that single category outweighs weather by 5 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 303,934 reported delay minutes.
Cancellations run at 5.25%, against 2.45% nationally. That is about one flight in twenty cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 18.1% of arrivals land a full hour or more behind schedule, against 12.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
What to do with this
Flying from PHL in July
For a July trip through PHL: plan on this being one of the airport's harder months. The 5am–8am departures held up best at 87.2% on time, and with 18.1% of arrivals an hour or more late, a connection here deserves more slack than the same trip in September would.
Related
Where to go next
- Philadelphia International (PHL), the whole year
- PHL in August72.2%
- PHL in September82.0%
- PHL in October77.5%
- PHL in November77.8%
- PHL in December65.3%
- PHL in January75.5%
- PHL in February80.0%
- PHL in March76.7%
- PHL in April80.8%
- PHL in May80.7%
- PHL in June74.4%
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.