Best Time to Fly CMH to BNA: On-Time Stats by Hour & Airline
John Glenn Columbus International → Nashville International
Data through July 2026 · Last updated October 18, 2026
1,040 flights were scheduled from Columbus (CMH) to Nashville (BNA) in the last 12 months, and 83.8% of those that flew arrived on time, 6.2 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
August has been the best month (91% on time) and Friday the weakest day of the week (80%).
0.7% of flights were cancelled, versus 1.8% nationally.
CMH 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 | 83.8% | 51 min | 0.7% | 1,040 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to BNA
On-time arrival % by scheduled departure hour (local time), 1,902 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 14 | |
| 6am–7am | 96.1% | 0.5% | 587 |
| 7am–8am | 95.8% | 1.7% | 120 |
| 8am–9am | Limited data | 3 | |
| 9am–10am | Limited data | 1 | |
| 11am–12pm | 92.9% | 0.0% | 85 |
| 12pm–1pm | 78.1% | 0.0% | 137 |
| 1pm–2pm | 86.0% | 1.7% | 58 |
| 2pm–3pm | 65.8% | 2.6% | 39 |
| 3pm–4pm | 77.3% | 0.0% | 119 |
| 4pm–5pm | Limited data | 3 | |
| 5pm–6pm | 76.2% | 4.5% | 66 |
| 6pm–7pm | Limited data | 23 | |
| 7pm–8pm | 78.8% | 0.3% | 284 |
| 8pm–9pm | 70.4% | 0.0% | 169 |
| 9pm–10pm | 73.2% | 1.6% | 194 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CMH 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) | 83.9% | -1.4 pts | 0.0% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 80.8% | -4.4 pts | 0.0% | 73 |
| Summer peak (Jun 15 - Aug 15) | 81.4% | -3.8 pts | 0.5% | 368 |
| All other days | 85.2% | — | 1.0% | 1,430 |
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).