Best Time to Fly ATL to LEX: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Blue Grass
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 84.8% of Atlanta (ATL) to Lexington (LEX) flights arrived on time (2,055 scheduled flights). That is 7.2 points above the national average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
October has been the best month (91% on time) and Sunday the weakest day of the week (78%).
1.9% of flights were cancelled, versus 1.8% nationally.
ATL to LEX 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 | 84.9% | 66 min | 1.9% | 2,054 |
| SkyWest Airlines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to LEX
On-time arrival % by scheduled departure hour (local time), 4,192 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 91.8% | 1.4% | 635 |
| 9am–10am | Limited data | 27 | |
| 10am–11am | 93.2% | 1.3% | 75 |
| 11am–12pm | 88.3% | 0.8% | 504 |
| 12pm–1pm | 80.0% | 3.0% | 67 |
| 1pm–2pm | 84.5% | 0.8% | 482 |
| 2pm–3pm | 83.5% | 4.0% | 126 |
| 3pm–4pm | 80.6% | 1.3% | 475 |
| 4pm–5pm | 79.7% | 0.9% | 114 |
| 5pm–6pm | 78.8% | 1.8% | 332 |
| 6pm–7pm | 71.6% | 1.8% | 165 |
| 7pm–8pm | 81.5% | 1.5% | 132 |
| 8pm–9pm | 77.2% | 1.4% | 361 |
| 9pm–10pm | Limited data | 21 | |
| 10pm–11pm | 81.3% | 1.8% | 676 |
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 LEX
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) | 87.1% | +2.1 pts | 0.0% | 85 |
| Christmas & New Year (Dec 20 - Jan 3) | 83.3% | -1.6 pts | 0.0% | 66 |
| Summer peak (Jun 15 - Aug 15) | 76.1% | -8.9 pts | 1.3% | 778 |
| All other days | 85.0% | — | 1.5% | 3,263 |
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).