Best Time to Fly HOU to BHM: On-Time Stats by Hour & Airline
William P Hobby → Birmingham-Shuttlesworth International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.0% of Houston (HOU) to Birmingham (BHM) flights arrived on time (448 scheduled flights). That is 1.6 points below 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 (92% on time) and Monday the weakest day of the week (77%).
0.5% of flights were cancelled, versus 1.8% nationally.
HOU 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 | 76.0% | 46 min | 0.5% | 448 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly HOU to BHM
On-time arrival % by scheduled departure hour (local time), 910 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 9am–10am | Limited data | 1 | |
| 10am–11am | 88.7% | 0.0% | 238 |
| 11am–12pm | 90.4% | 0.7% | 137 |
| 12pm–1pm | 80.6% | 2.7% | 37 |
| 1pm–2pm | 80.0% | 2.4% | 82 |
| 2pm–3pm | 72.6% | 0.0% | 106 |
| 3pm–4pm | 60.9% | 0.0% | 70 |
| 4pm–5pm | 77.6% | 0.0% | 67 |
| 5pm–6pm | Limited data | 20 | |
| 6pm–7pm | 88.6% | 0.0% | 44 |
| 7pm–8pm | Limited data | 23 | |
| 8pm–9pm | 55.4% | 0.0% | 65 |
| 9pm–10pm | Limited data | 15 | |
| 10pm–11pm | Limited data | 5 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on HOU 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 | 18 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 85.7% | +5.5 pts | 2.8% | 36 |
| Summer peak (Jun 15 - Aug 15) | 74.4% | -5.8 pts | 0.0% | 165 |
| All other days | 80.2% | — | 0.4% | 691 |
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).