Best Time to Fly SDF to BNA: On-Time Stats by Hour & Airline
Louisville Muhammad Ali International → Nashville International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.8% of Louisville (SDF) to Nashville (BNA) flights arrived on time (505 scheduled flights). That is 1.2 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
January has been the best month (97% on time) and Sunday the weakest day of the week (71%).
1.0% of flights were cancelled, versus 1.8% nationally.
SDF to BNA 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 |
|---|---|---|---|---|
| Southwest Airlines | 78.8% | 43 min | 1.0% | 505 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SDF to BNA
On-time arrival % by scheduled departure hour (local time), 505 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 95.5% | 0.0% | 66 |
| 7am–8am | 94.5% | 1.1% | 92 |
| 8am–9am | Limited data | 1 | |
| 10am–11am | Limited data | 4 | |
| 11am–12pm | 86.2% | 3.5% | 113 |
| 12pm–1pm | Limited data | 21 | |
| 1pm–2pm | 81.8% | 0.0% | 44 |
| 2pm–3pm | Limited data | 8 | |
| 3pm–4pm | Limited data | 9 | |
| 4pm–5pm | Limited data | 19 | |
| 5pm–6pm | 50.0% | 0.0% | 60 |
| 6pm–7pm | 54.1% | 0.0% | 61 |
| 8pm–9pm | Limited data | 7 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SDF to BNA
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) | Limited data | 10 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 18 | ||
| Summer peak (Jun 15 - Aug 15) | 73.8% | -5.6 pts | 1.0% | 104 |
| All other days | 79.4% | — | 1.1% | 373 |
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).