Best Time to Fly BNA to ATL: On-Time Stats by Hour & Airline
Nashville International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
4,265 flights were scheduled from Nashville (BNA) to Atlanta (ATL) in the last 12 months, and 83.5% of those that flew arrived on time, 5.8 points above the US average of 77.6%.
Delta Air Lines was the most punctual of the 2 airlines on the route at 86.5%, while Southwest Airlines trailed at 72.4%.
September has been the best month (90% on time) and Monday the weakest day of the week (81%).
1.8% of flights were cancelled, versus 1.8% nationally.
BNA 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 | 86.5% | 76 min | 2.1% | 3,368 |
| Southwest Airlines | 72.4% | 54 min | 0.3% | 897 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to ATL
On-time arrival % by scheduled departure hour (local time), 8,205 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 95.8% | 2.1% | 749 |
| 6am–7am | 86.7% | 1.6% | 553 |
| 7am–8am | 89.8% | 0.7% | 714 |
| 8am–9am | 91.8% | 2.2% | 583 |
| 9am–10am | 93.2% | 1.8% | 734 |
| 10am–11am | 87.9% | 1.0% | 409 |
| 11am–12pm | 85.6% | 0.7% | 435 |
| 12pm–1pm | 85.0% | 0.5% | 652 |
| 1pm–2pm | 83.8% | 1.2% | 162 |
| 2pm–3pm | 82.3% | 0.7% | 724 |
| 3pm–4pm | 74.5% | 2.0% | 149 |
| 4pm–5pm | 79.3% | 1.4% | 710 |
| 5pm–6pm | 74.8% | 0.9% | 684 |
| 6pm–7pm | 69.3% | 1.3% | 467 |
| 7pm–8pm | 73.4% | 2.1% | 374 |
| 8pm–9pm | 78.7% | 0.0% | 47 |
| 9pm–10pm | 53.3% | 0.0% | 30 |
| 10pm–11pm | Limited data | 29 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BNA 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) | 81.2% | -4.7 pts | 0.0% | 149 |
| Christmas & New Year (Dec 20 - Jan 3) | 86.7% | +0.8 pts | 0.7% | 303 |
| Summer peak (Jun 15 - Aug 15) | 78.7% | -7.2 pts | 1.5% | 1,523 |
| All other days | 85.9% | — | 1.3% | 6,230 |
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).