Best Time to Fly MKE to BNA: On-Time Stats by Hour & Airline
General Mitchell International → Nashville International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 81.5% of Milwaukee (MKE) to Nashville (BNA) flights arrived on time (971 scheduled flights). That is 3.9 points above the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
September has been the best month (90% on time) and Sunday the weakest day of the week (80%).
1.3% of flights were cancelled, versus 1.8% nationally.
MKE 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 | 81.5% | 50 min | 1.3% | 971 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly MKE to BNA
On-time arrival % by scheduled departure hour (local time), 1,858 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 93.5% | 0.8% | 387 |
| 6am–7am | 95.2% | 1.2% | 86 |
| 7am–8am | 97.1% | 0.6% | 171 |
| 8am–9am | 92.6% | 1.2% | 82 |
| 9am–10am | 91.7% | 4.8% | 63 |
| 10am–11am | 90.1% | 1.1% | 92 |
| 11am–12pm | 84.7% | 1.9% | 154 |
| 12pm–1pm | 90.4% | 0.0% | 53 |
| 1pm–2pm | 81.6% | 2.0% | 50 |
| 2pm–3pm | 89.3% | 1.7% | 58 |
| 3pm–4pm | 73.1% | 0.0% | 134 |
| 4pm–5pm | 63.9% | 0.5% | 192 |
| 5pm–6pm | 62.2% | 1.0% | 100 |
| 6pm–7pm | 75.2% | 0.8% | 134 |
| 7pm–8pm | 61.5% | 0.0% | 52 |
| 8pm–9pm | 71.4% | 2.0% | 50 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on MKE 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) | 66.7% | -18.9 pts | 3.2% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.4% | -6.1 pts | 0.0% | 68 |
| Summer peak (Jun 15 - Aug 15) | 76.6% | -9.0 pts | 0.8% | 351 |
| All other days | 85.5% | — | 1.1% | 1,408 |
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).