Jacksonville (JAX) to Philadelphia (PHL): On-Time Performance
Data through May 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 79% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 72%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 21 min
- completed flights
- Cancelled
- 2.6%
- Flights/day
- 4.2
- last 12 months
- Duration
- 2h 11m
- scheduled
- Distance
- 742 mi
Best airline from JAX to PHL
4 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 93% | 5 min | 1.8% | 163 |
| American Airlines | 80% | 21 min | 1.8% | 1,518 |
| PSA Airlines | 79% | 24 min | 4.2% | 783 |
| Frontier Airlines | 73% | 22 min | 2.8% | 681 |
Monthly on-time trend
Best time to fly from JAX to PHL
Aim for departures around 6 a.m. (93% on-time); avoid 3 p.m. departures (58%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 22 min |
| Tuesday | 80% | 18 min |
| Wednesdaybest | 86% | 10 min |
| Thursday | 77% | 25 min |
| Friday | 78% | 24 min |
| Saturday | 80% | 18 min |
| Sunday | 77% | 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 operations31%
- National airspace system11%
- Weather5%
Frequently asked questions
- How often are flights from JAX to PHL delayed?
- 21% of JAX–PHL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. 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 93%, based on 163 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 3 p.m. have the worst (58%). 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 11m over 742 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are JAX to PHL flights cancelled?
- 2.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, 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 3,145 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.