Best Time to Fly BNA to CHS: On-Time Stats by Hour & Airline
Nashville International → Charleston AFB/International
Data through July 2026 · Last updated October 18, 2026
987 flights were scheduled from Nashville (BNA) to Charleston (CHS) in the last 12 months, and 73.8% of those that flew arrived on time, 3.8 points below the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Tuesday was the most reliable day (82% on time) and June the worst month (56%).
The cancellation rate was 0.5% (US average 1.8%).
BNA to CHS 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 | 73.8% | 49 min | 0.5% | 987 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to CHS
On-time arrival % by scheduled departure hour (local time), 1,818 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 8 | |
| 8am–9am | Limited data | 3 | |
| 9am–10am | 90.2% | 0.3% | 379 |
| 10am–11am | 89.0% | 1.4% | 294 |
| 11am–12pm | Limited data | 25 | |
| 12pm–1pm | Limited data | 24 | |
| 1pm–2pm | 57.4% | 0.0% | 63 |
| 2pm–3pm | 70.6% | 0.0% | 68 |
| 3pm–4pm | 65.0% | 0.0% | 158 |
| 4pm–5pm | 75.9% | 0.7% | 142 |
| 5pm–6pm | 72.8% | 0.0% | 81 |
| 6pm–7pm | 69.3% | 1.6% | 182 |
| 7pm–8pm | 62.2% | 1.6% | 191 |
| 8pm–9pm | 61.8% | 2.0% | 148 |
| 9pm–10pm | 76.0% | 0.0% | 50 |
| 10pm–11pm | Limited data | 2 | |
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 CHS
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) | 75.0% | -4.2 pts | 0.0% | 32 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.0% | -4.2 pts | 1.4% | 73 |
| Summer peak (Jun 15 - Aug 15) | 65.2% | -14.0 pts | 1.4% | 349 |
| All other days | 79.2% | — | 0.7% | 1,364 |
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).