Atlanta (ATL) to Jacksonville (JAX): On-Time Performance
Data through July 2026
Atlanta (ATL) to Jacksonville (JAX) effectively runs on two schedules. In October 2024, 91% of arrivals were on time; in July 2024 that fell to 54% — a 37-point seasonal swing. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 67%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 16 min
- completed flights
- Cancelled
- 1.7%
- Flights/day
- 11
- last 12 months
- Duration
- 1h 9m
- scheduled
- Distance
- 269 mi
Best airline from ATL to JAX
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Southwest Airlinesmost reliable | 75% | 14 min | 0.8% | 487 |
| Delta Air Lines | 75% | 16 min | 1.7% | 7,991 |
| Frontier Airlines | 55% | 28 min | 1.3% | 224 |
Monthly on-time trend
Best time to fly from ATL to JAX
Aim for departures around 8 a.m. (93% on-time); avoid 8 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 19 min |
| Tuesday | 81% | 11 min |
| Wednesdaybest | 84% | 9 min |
| Thursday | 76% | 15 min |
| Friday | 72% | 18 min |
| Saturday | 73% | 18 min |
| Sunday | 65% | 24 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft30%
- Airline operations51%
- National airspace system14%
- Weather5%
Frequently asked questions
- How often are flights from ATL to JAX delayed?
- 26% of ATL–JAX 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 16 minutes.
- Which airline is most reliable from ATL to JAX?
- Southwest Airlines has the best on-time record on this route at 75%, based on 487 flights. 3 airlines flew ATL–JAX frequently enough to compare in this period.
- What is the best time of day to fly from ATL to JAX?
- Departures around 8 a.m. have the best record (93% on-time), while departures around 8 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to JAX?
- The scheduled ATL–JAX flight time averages 1h 9m over 269 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are ATL to JAX flights cancelled?
- 1.7% 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 ATL to JAX?
- July 2024 was the roughest month in this dataset, with only 54% of arrivals on time. The best was October 2024 at 91%. If your dates are flexible, that 37-point gap is worth planning around.
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Based on 8,702 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.