Best Time to Fly BNA to CMH: On-Time Stats by Hour & Airline
Nashville International → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 78.3% of Nashville (BNA) to Columbus (CMH) flights arrived on time (1,035 scheduled flights). That is 0.7 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 (89% on time) and Monday the weakest day of the week (75%).
0.6% of flights were cancelled, versus 1.8% nationally.
BNA to CMH 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 | 78.3% | 55 min | 0.6% | 1,035 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to CMH
On-time arrival % by scheduled departure hour (local time), 1,899 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | Limited data | 8 | |
| 9am–10am | 92.9% | 0.5% | 380 |
| 10am–11am | 93.0% | 1.3% | 302 |
| 11am–12pm | Limited data | 30 | |
| 12pm–1pm | Limited data | 8 | |
| 1pm–2pm | 87.3% | 0.0% | 64 |
| 2pm–3pm | 86.4% | 3.3% | 91 |
| 3pm–4pm | 69.9% | 0.0% | 93 |
| 4pm–5pm | 62.4% | 0.6% | 164 |
| 5pm–6pm | 50.9% | 0.0% | 53 |
| 6pm–7pm | 83.2% | 1.0% | 193 |
| 7pm–8pm | 67.8% | 0.4% | 271 |
| 8pm–9pm | 64.6% | 0.0% | 196 |
| 9pm–10pm | 71.7% | 0.0% | 46 |
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 CMH
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) | 79.5% | -3.0 pts | 0.0% | 73 |
| Summer peak (Jun 15 - Aug 15) | 66.8% | -15.6 pts | 0.3% | 363 |
| All other days | 82.5% | — | 0.9% | 1,432 |
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).