Atlanta (ATL) to Birmingham (BHM): On-Time Performance
Data through May 2026
The calendar drives reliability on ATL–BHM. November 2024 flights landed on schedule 93% of the time, but July 2024 dropped to 61% — a gap of 31 points. Across the full period the route averages 82% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 77%), which matters most in the rough months.
- On-time
- 82%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 8.9
- last 12 months
- Duration
- 53m
- scheduled
- Distance
- 134 mi
Monthly on-time trend
Best time to fly from ATL to BHM
Aim for departures around 12 p.m. (91% on-time); avoid 5 p.m. departures (72%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 13 min |
| Tuesday | 85% | 11 min |
| Wednesdaybest | 85% | 8 min |
| Thursday | 85% | 10 min |
| Friday | 82% | 16 min |
| Saturday | 81% | 11 min |
| Sunday | 79% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft24%
- Airline operations57%
- National airspace system12%
- Weather8%
Frequently asked questions
- How often are flights from ATL to BHM delayed?
- 18% of ATL–BHM flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- What is the best time of day to fly from ATL to BHM?
- Departures around 12 p.m. have the best record (91% on-time), while departures around 5 p.m. have the worst (72%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to BHM?
- The scheduled ATL–BHM flight time averages 53m over 134 miles. Actual arrival times vary — flights on this route land 15+ minutes late 18% of the time.
- How often are ATL to BHM flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to BHM?
- July 2024 was the roughest month in this dataset, with only 61% of arrivals on time. The best was November 2024 at 93%. If your dates are flexible, that 31-point gap is worth planning around.
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Based on 6,202 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.