Best Time to Fly BOS to BNA: On-Time Stats by Hour & Airline
Logan International → Nashville International
Data through July 2026 · Last updated October 18, 2026
2,934 flights were scheduled from Boston (BOS) to Nashville (BNA) in the last 12 months, and 70.3% of those that flew arrived on time, 7.3 points below the US average of 77.6%.
Among 4 airlines, Republic Airways led with 73.6% on time and Southwest Airlines was last with 65.5%.
Over 24 months, Wednesday was the most reliable day (79% on time) and July the worst month (63%).
The cancellation rate was 2.1% (US average 1.8%).
BOS 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 |
|---|---|---|---|---|
| Republic Airways | 73.6% | 68 min | 4.0% | 478 |
| JetBlue | 73.2% | 63 min | 2.5% | 874 |
| Delta Air Lines | 71.0% | 86 min | 1.4% | 558 |
| Southwest Airlines | 65.5% | 61 min | 1.2% | 999 |
| American Airlines | Limited data | 2 | ||
| Spirit Airlines | Limited data | 23 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to BNA
On-time arrival % by scheduled departure hour (local time), 5,814 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.2% | 1.1% | 478 |
| 6am–7am | 92.7% | 1.0% | 207 |
| 7am–8am | 80.8% | 1.4% | 418 |
| 8am–9am | 83.3% | 2.6% | 498 |
| 9am–10am | 83.8% | 0.9% | 463 |
| 10am–11am | 80.4% | 1.9% | 209 |
| 11am–12pm | 82.8% | 0.8% | 117 |
| 12pm–1pm | 76.3% | 0.6% | 316 |
| 1pm–2pm | 78.0% | 0.8% | 126 |
| 2pm–3pm | 68.6% | 1.3% | 302 |
| 3pm–4pm | 66.9% | 0.4% | 500 |
| 4pm–5pm | 65.0% | 2.9% | 449 |
| 5pm–6pm | 61.2% | 2.4% | 336 |
| 6pm–7pm | 64.6% | 0.4% | 244 |
| 7pm–8pm | 64.5% | 2.5% | 758 |
| 8pm–9pm | 56.0% | 1.6% | 323 |
| 9pm–10pm | Limited data | 27 | |
| 10pm–11pm | 67.4% | 0.0% | 43 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BOS 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) | 74.1% | -2.0 pts | 0.0% | 108 |
| Christmas & New Year (Dec 20 - Jan 3) | 76.1% | +0.0 pts | 1.4% | 208 |
| Summer peak (Jun 15 - Aug 15) | 65.0% | -11.0 pts | 3.3% | 1,123 |
| All other days | 76.0% | — | 1.2% | 4,375 |
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).