Best Time to Fly ATL to JAX: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Jacksonville International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.9% of Atlanta (ATL) to Jacksonville (JAX) flights arrived on time (4,045 scheduled flights). That is 1.7 points below the national average of 77.6%.
Delta Air Lines was the most punctual of the 2 airlines on the route at 77.1%, while Frontier Airlines trailed at 54.9%.
October has been the best month (86% on time) and Sunday the weakest day of the week (66%).
1.5% of flights were cancelled, versus 1.8% nationally.
ATL to JAX 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 |
|---|---|---|---|---|
| Delta Air Lines | 77.1% | 56 min | 1.6% | 3,836 |
| Frontier Airlines | 54.9% | 59 min | 1.0% | 209 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to JAX
On-time arrival % by scheduled departure hour (local time), 8,310 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 89.6% | 2.0% | 542 |
| 8am–9am | 92.2% | 0.7% | 271 |
| 9am–10am | 86.8% | 1.9% | 519 |
| 10am–11am | 83.5% | 0.9% | 439 |
| 11am–12pm | 85.3% | 1.9% | 514 |
| 12pm–1pm | 83.0% | 0.4% | 462 |
| 1pm–2pm | 79.4% | 0.3% | 657 |
| 2pm–3pm | 73.1% | 0.0% | 104 |
| 3pm–4pm | 73.2% | 1.3% | 681 |
| 4pm–5pm | 65.8% | 1.3% | 791 |
| 5pm–6pm | 71.4% | 2.0% | 442 |
| 6pm–7pm | 72.6% | 1.7% | 354 |
| 7pm–8pm | 69.0% | 1.6% | 545 |
| 8pm–9pm | 62.5% | 0.7% | 558 |
| 9pm–10pm | 65.3% | 1.1% | 613 |
| 10pm–11pm | 70.1% | 2.7% | 598 |
| 11pm–12am | 70.2% | 2.3% | 220 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL to JAX
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) | 74.5% | -3.8 pts | 0.0% | 161 |
| Christmas & New Year (Dec 20 - Jan 3) | 68.1% | -10.2 pts | 1.6% | 307 |
| Summer peak (Jun 15 - Aug 15) | 64.1% | -14.2 pts | 2.0% | 1,464 |
| All other days | 78.3% | — | 1.3% | 6,378 |
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).