Best Time to Fly BHM to ATL: On-Time Stats by Hour & Airline
Birmingham-Shuttlesworth International → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
3,334 flights were scheduled from Birmingham (BHM) to Atlanta (ATL) in the last 12 months, and 87.5% of those that flew arrived on time, 9.9 points above the US average of 77.6%.
Delta Air Lines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (91% on time) and July the worst month (82%).
The cancellation rate was 1.8% (US average 1.8%).
BHM to ATL 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 |
|---|---|---|---|---|
| Delta Air Lines | 87.5% | 86 min | 1.8% | 3,334 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BHM to ATL
On-time arrival % by scheduled departure hour (local time), 6,313 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 94.5% | 1.4% | 695 |
| 6am–7am | 88.1% | 1.4% | 719 |
| 7am–8am | 89.5% | 1.8% | 667 |
| 8am–9am | 91.0% | 2.9% | 69 |
| 9am–10am | 91.5% | 1.3% | 682 |
| 10am–11am | 92.1% | 1.3% | 374 |
| 11am–12pm | 91.9% | 1.2% | 326 |
| 12pm–1pm | 86.4% | 0.0% | 244 |
| 1pm–2pm | 87.2% | 0.7% | 409 |
| 2pm–3pm | 82.1% | 1.3% | 373 |
| 3pm–4pm | 90.1% | 0.0% | 284 |
| 4pm–5pm | 82.2% | 0.8% | 357 |
| 5pm–6pm | 79.7% | 1.3% | 470 |
| 6pm–7pm | 79.4% | 2.0% | 351 |
| 7pm–8pm | 78.7% | 3.8% | 293 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on BHM to ATL
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) | 84.3% | -4.4 pts | 0.9% | 116 |
| Christmas & New Year (Dec 20 - Jan 3) | 87.5% | -1.3 pts | 1.6% | 243 |
| Summer peak (Jun 15 - Aug 15) | 82.6% | -6.2 pts | 1.8% | 1,163 |
| All other days | 88.8% | — | 1.3% | 4,791 |
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).