Historical on-time performance
Birmingham to Atlanta
134 miData through May 2026Source: US DOT · BTS
Flights on BHM–ATL arrive on time 86% of the time over the last 12 months.
On-time rate86%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.9%of scheduled flights
based on 3,266 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time86%Medianon timep9020 minCancel1.9%Flights3,266
Why flights run late
Delay causes
- Airline42%
- Weather4%
- Air traffic (NAS)19%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline69%
- Weather31%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 61 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly BHM → ATL
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 81% to 90% on time.
- Mornings90% on time · p90 10 min · 4,115 flights
- Middays89% on time · p90 10 min · 2,081 flights
- Afternoons86% on time · p90 25 min · 1,321 flights
- Evenings81% on time · p90 35 min · 1,524 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 84% to 91% on time.
- Wednesdays91% on time · p90 10 min · 1,235 flights
- Tuesdays89% on time · p90 10 min · 1,235 flights
- Thursdays89% on time · p90 15 min · 1,362 flights
- Saturdays88% on time · p90 15 min · 1,162 flights
- Fridays87% on time · p90 15 min · 1,375 flights
- Mondays84% on time · p90 20 min · 1,362 flights
- Sundays84% on time · p90 25 min · 1,354 flights
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