Best Time to Fly JAX to ATL: On-Time Stats by Hour & Airline
Jacksonville International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 84.7% of Jacksonville (JAX) to Atlanta (ATL) flights arrived on time (4,046 scheduled flights). That is 7.0 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 86.6% on time and Frontier Airlines was last with 49.0%.
Over 24 months, Wednesday was the most reliable day (90% on time) and July the worst month (72%).
The cancellation rate was 1.7% (US average 1.8%).
JAX to ATL 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 | 86.6% | 79 min | 1.6% | 3,837 |
| Frontier Airlines | 49.0% | 79 min | 1.9% | 209 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly JAX to ATL
On-time arrival % by scheduled departure hour (local time), 8,311 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.4% | 1.6% | 667 |
| 6am–7am | 92.0% | 1.4% | 775 |
| 7am–8am | 91.2% | 1.7% | 714 |
| 8am–9am | 91.3% | 1.5% | 721 |
| 9am–10am | 90.2% | 1.9% | 592 |
| 10am–11am | 91.4% | 1.0% | 199 |
| 11am–12pm | 88.4% | 1.3% | 635 |
| 12pm–1pm | 82.7% | 1.0% | 198 |
| 1pm–2pm | 81.4% | 1.6% | 494 |
| 2pm–3pm | 79.0% | 0.9% | 462 |
| 3pm–4pm | 80.3% | 0.4% | 456 |
| 4pm–5pm | 79.1% | 0.7% | 272 |
| 5pm–6pm | 74.7% | 1.5% | 752 |
| 6pm–7pm | 73.2% | 1.0% | 673 |
| 7pm–8pm | 73.6% | 3.3% | 392 |
| 8pm–9pm | 67.8% | 2.6% | 309 |
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 ATL
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) | 85.7% | -0.3 pts | 0.0% | 161 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.5% | -4.6 pts | 1.6% | 307 |
| Summer peak (Jun 15 - Aug 15) | 75.9% | -10.1 pts | 2.2% | 1,464 |
| All other days | 86.0% | — | 1.3% | 6,379 |
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).