Philadelphia International (PHL) Delays and On-Time Departures
Philadelphia, PA · ranked 270th of 333 airports for on-time departures
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, Philadelphia (PHL) had 100,793 scheduled departures and 76.1% of them left on time (US average 77.4%).
That ranks 270th of 333 US airports tracked on this site, with 2.7% of departures cancelled.
Among airlines at Philadelphia (PHL), Republic Airways left on time most often (84.5%).
Over 24 months, Wednesday was the most reliable day (82% on time) and July the worst month (66%).
Best time of day to fly out of Philadelphia (PHL)
On-time departure % by scheduled departure hour (local time), last 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 1am–2am | Limited data | 3 | |
| 2am–3am | Limited data | 1 | |
| 5am–6am | 90.7% | 2.4% | 5,395 |
| 6am–7am | 89.7% | 1.9% | 11,426 |
| 7am–8am | 87.6% | 1.7% | 8,578 |
| 8am–9am | 87.4% | 1.9% | 21,476 |
| 9am–10am | 84.5% | 1.7% | 7,955 |
| 10am–11am | 85.1% | 1.5% | 18,418 |
| 11am–12pm | 80.3% | 1.6% | 10,814 |
| 12pm–1pm | 78.0% | 1.5% | 7,617 |
| 1pm–2pm | 77.0% | 1.5% | 12,566 |
| 2pm–3pm | 74.5% | 1.8% | 7,861 |
| 3pm–4pm | 72.7% | 2.1% | 13,837 |
| 4pm–5pm | 70.5% | 2.0% | 9,379 |
| 5pm–6pm | 66.6% | 2.8% | 10,340 |
| 6pm–7pm | 66.5% | 3.2% | 19,844 |
| 7pm–8pm | 66.7% | 3.9% | 17,409 |
| 8pm–9pm | 61.6% | 4.9% | 5,785 |
| 9pm–10pm | 71.2% | 5.1% | 9,552 |
| 10pm–11pm | 68.6% | 6.3% | 1,857 |
| 11pm–12am | 67.6% | 4.8% | 269 |
Airlines at PHL ranked by on-time departures
Last 12 months. Airlines with fewer than 30 departures are marked “limited data”.
| Airline | On-time departures | On-time arrivals | Cancelled | Departures |
|---|---|---|---|---|
| Republic Airways | 84.5% | 82.5% | 2.7% | 6,771 |
| United Airlines | 83.3% | 78.0% | 1.4% | 4,413 |
| Delta Air Lines | 82.5% | 83.1% | 2.6% | 6,487 |
| Alaska Airlines | 76.8% | 68.0% | 1.6% | 737 |
| American Airlines | 75.7% | 75.8% | 2.2% | 46,717 |
| PSA Airlines | 75.1% | 74.7% | 4.5% | 17,411 |
| JetBlue | 74.7% | 71.8% | 3.0% | 1,719 |
| Spirit Airlines | 73.2% | 73.0% | 4.8% | 1,996 |
| Frontier Airlines | 71.5% | 69.0% | 2.7% | 9,279 |
| Southwest Airlines | 68.2% | 72.9% | 1.3% | 5,111 |
| SkyWest Airlines | 64.4% | 66.7% | 2.2% | 89 |
| Allegiant Air | 45.9% | 50.8% | 3.2% | 63 |
80%+ good 70–79.9% fair <70% poor
Best day to fly out of PHL
On-time departures by day, 24 months.
Best month to fly out of PHL
On-time departures by month, 24 months.
Holiday travel at Philadelphia (PHL)
On-time departures during holiday periods compared with all other days, last 24 months.
| Period | On-time departures | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 79.1% | -0.7 pts | 0.8% | 3,496 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.8% | -9.0 pts | 2.1% | 7,332 |
| Summer peak (Jun 15 - Aug 15) | 66.9% | -12.9 pts | 4.8% | 38,361 |
| All other days | 79.8% | — | 1.9% | 151,194 |
Monthly on-time departure trend at PHL
On-time departure % each month, with the 12-month US average for reference.
Routes from Philadelphia (PHL)
Every route from PHL with its own page, by number of flights (last 12 months, on-time arrivals).