Jacksonville (JAX) to Philadelphia (PHL): On-Time Performance
Data through July 2026
When you fly JAX to PHL matters as much as anything else about the booking: the route swung from 92% on-time in November 2024 to just 55% in July 2025. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 70%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 2.8%
- Flights/day
- 4.3
- last 12 months
- Duration
- 2h 12m
- scheduled
- Distance
- 742 mi
Best airline from JAX to PHL
4 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 92% | 7 min | 1.7% | 180 |
| American Airlines | 80% | 20 min | 1.9% | 1,639 |
| PSA Airlines | 78% | 26 min | 4.5% | 814 |
| Frontier Airlines | 73% | 23 min | 3.0% | 691 |
Monthly on-time trend
Best time to fly from JAX to PHL
Aim for departures around 6 a.m. (93% on-time); avoid 4 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 76% | 25 min |
| Tuesday | 78% | 20 min |
| Wednesdaybest | 87% | 8 min |
| Thursday | 77% | 26 min |
| Friday | 77% | 25 min |
| Saturday | 80% | 17 min |
| Sunday | 76% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft53%
- Airline operations28%
- National airspace system13%
- Weather6%
Frequently asked questions
- How often are flights from JAX to PHL delayed?
- 22% of JAX–PHL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 21 minutes.
- Which airline is most reliable from JAX to PHL?
- Republic Airways has the best on-time record on this route at 92%, based on 180 flights. 4 airlines flew JAX–PHL frequently enough to compare in this period.
- What is the best time of day to fly from JAX to PHL?
- Departures around 6 a.m. have the best record (93% on-time), while departures around 4 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from JAX to PHL?
- The scheduled JAX–PHL flight time averages 2h 12m over 742 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are JAX to PHL flights cancelled?
- 2.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from JAX to PHL?
- July 2025 was the roughest month in this dataset, with only 55% of arrivals on time. The best was November 2024 at 92%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 3,324 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.