Best Time to Fly JAX to PHL: On-Time Stats by Hour & Airline
Jacksonville International → Philadelphia International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.5% of Jacksonville (JAX) to Philadelphia (PHL) flights arrived on time (1,564 scheduled flights). That is 1.9 points above the national average of 77.6%.
Among 4 airlines, Republic Airways led with 91.5% on time and Frontier Airlines was last with 73.9%.
Over 24 months, Wednesday was the most reliable day (87% on time) and July the worst month (61%).
The cancellation rate was 3.0% (US average 1.8%).
JAX to PHL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 91.5% | 126 min | 1.4% | 72 |
| American Airlines | 81.6% | 103 min | 2.1% | 776 |
| PSA Airlines | 77.2% | 108 min | 4.5% | 442 |
| Frontier Airlines | 73.9% | 71 min | 3.6% | 274 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JAX to PHL
On-time arrival % by scheduled departure hour (local time), 3,197 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 13 | |
| 6am–7am | 93.0% | 1.9% | 160 |
| 7am–8am | 91.2% | 2.2% | 546 |
| 8am–9am | 79.8% | 0.0% | 79 |
| 9am–10am | 84.8% | 1.3% | 234 |
| 10am–11am | 88.4% | 2.4% | 370 |
| 11am–12pm | 84.3% | 0.0% | 153 |
| 12pm–1pm | Limited data | 14 | |
| 1pm–2pm | 83.6% | 2.7% | 75 |
| 2pm–3pm | 80.0% | 1.3% | 233 |
| 3pm–4pm | 60.0% | 7.8% | 141 |
| 4pm–5pm | 61.4% | 4.5% | 331 |
| 5pm–6pm | 65.2% | 2.4% | 415 |
| 6pm–7pm | 77.4% | 3.7% | 161 |
| 7pm–8pm | 83.6% | 4.3% | 70 |
| 8pm–9pm | Limited data | 21 | |
| 9pm–10pm | 68.1% | 5.2% | 96 |
| 10pm–11pm | 70.0% | 5.9% | 85 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on JAX to PHL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 82.8% | +0.5 pts | 0.0% | 58 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.2% | -2.1 pts | 2.2% | 134 |
| Summer peak (Jun 15 - Aug 15) | 63.5% | -18.7 pts | 5.9% | 592 |
| All other days | 82.3% | — | 2.1% | 2,413 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).