Best Time to Fly BNA to BHM: On-Time Stats by Hour & Airline
Nashville International → Birmingham-Shuttlesworth International
Data through July 2026 · Last updated October 18, 2026
516 flights were scheduled from Nashville (BNA) to Birmingham (BHM) in the last 12 months, and 76.6% of those that flew arrived on time, 1.0 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 (87% on time) and July the worst month (63%).
The cancellation rate was 0.6% (US average 1.8%).
BNA to BHM 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 | 76.6% | 47 min | 0.6% | 516 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BNA to BHM
On-time arrival % by scheduled departure hour (local time), 782 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | 89.7% | 0.0% | 58 |
| 10am–11am | 78.0% | 0.0% | 82 |
| 11am–12pm | Limited data | 9 | |
| 12pm–1pm | 82.9% | 0.0% | 117 |
| 1pm–2pm | 81.0% | 2.4% | 124 |
| 2pm–3pm | 77.1% | 0.0% | 118 |
| 3pm–4pm | 82.6% | 3.4% | 89 |
| 4pm–5pm | 90.0% | 0.0% | 30 |
| 5pm–6pm | Limited data | 12 | |
| 6pm–7pm | Limited data | 2 | |
| 8pm–9pm | Limited data | 8 | |
| 9pm–10pm | 67.6% | 0.0% | 74 |
| 10pm–11pm | 55.2% | 1.7% | 59 |
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 BHM
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 | 15 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 70.0% | -11.4 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 64.5% | -16.9 pts | 0.6% | 156 |
| All other days | 81.4% | — | 1.0% | 581 |
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).