Best Time to Fly IAH to BNA: On-Time Stats by Hour & Airline
George Bush Intercontinental/Houston → Nashville International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 72.9% of Houston (IAH) to Nashville (BNA) flights arrived on time (1,408 scheduled flights). That is 4.7 points below the national average of 77.6%.
United Airlines was the most punctual of the 2 airlines on the route at 74.5%, while SkyWest Airlines trailed at 68.9%.
January has been the best month (86% on time) and Thursday the weakest day of the week (74%).
0.6% of flights were cancelled, versus 1.8% nationally.
IAH 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 |
|---|---|---|---|---|
| United Airlines | 74.5% | 55 min | 0.5% | 1,024 |
| SkyWest Airlines | 68.9% | 74 min | 0.8% | 380 |
| Spirit Airlines | Limited data | 4 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly IAH to BNA
On-time arrival % by scheduled departure hour (local time), 2,913 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 12am–1am | Limited data | 1 | |
| 6am–7am | Limited data | 3 | |
| 7am–8am | 88.1% | 1.0% | 518 |
| 8am–9am | Limited data | 21 | |
| 9am–10am | 87.6% | 0.0% | 89 |
| 10am–11am | Limited data | 13 | |
| 11am–12pm | 79.3% | 2.0% | 203 |
| 12pm–1pm | 77.6% | 0.0% | 143 |
| 1pm–2pm | 82.9% | 2.4% | 42 |
| 2pm–3pm | 73.6% | 0.9% | 326 |
| 3pm–4pm | 63.6% | 0.0% | 55 |
| 4pm–5pm | 71.2% | 0.6% | 365 |
| 5pm–6pm | Limited data | 17 | |
| 6pm–7pm | 71.7% | 1.5% | 675 |
| 7pm–8pm | 60.6% | 0.0% | 33 |
| 8pm–9pm | 68.6% | 0.3% | 375 |
| 9pm–10pm | Limited data | 31 | |
| 11pm–12am | Limited data | 3 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on IAH 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) | 75.9% | -1.8 pts | 0.0% | 58 |
| Christmas & New Year (Dec 20 - Jan 3) | 71.7% | -5.9 pts | 0.9% | 107 |
| Summer peak (Jun 15 - Aug 15) | 68.0% | -9.6 pts | 1.6% | 506 |
| All other days | 77.6% | — | 1.0% | 2,242 |
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).