BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
ATL→BHM

Atlanta, GA (ATL) to Birmingham, AL (BHM) flight delay odds

82.5% of 3,306 official scheduled ATL-to-BHM flights arrived on time; 10.4% arrived at least 30 minutes late and 1.7% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
82.5%arrived on time
10.4%30+ min late
1.7%cancelled
3,306scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late5.3%all scheduled flights
120+ minutes late1.9%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+2.8 mincompleted flights

Which departure time was most reliable for ATL to BHM?

Among qualifying ATL-to-BHM departure window results, Early morning had the highest on-time rate: 90.5% of 357 flights. Evening was lowest at 77.9% across 855 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning35790.5%4.2%2.2%
Late morning47487.3%5.7%1.9%
Afternoon1,07182.4%10.6%1.1%
Evening85577.9%14.4%1.4%
Night54980.1%11.8%2.9%

Which weekday was most reliable for ATL to BHM?

Among qualifying ATL-to-BHM weekday results, Wednesday had the highest on-time rate: 87.0% of 453 flights. Monday was lowest at 78.6% across 500 flights.

DayFlightsOn time30+ minCancelled
Monday50078.6%13.8%1.6%
Tuesday46685.6%8.8%1.1%
Wednesday45387.0%7.9%0.7%
Thursday49284.6%9.3%0.4%
Friday49780.9%11.5%2.2%
Saturday40182.5%8.5%2.0%
Sunday49778.7%12.1%4.0%

Which airline was most reliable for ATL to BHM?

Only Delta Air Lines met the ATL-to-BHM airline threshold: 82.5% of 3,306 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines3,30682.5%10.4%1.7%

Which month was most reliable for ATL to BHM?

Among qualifying ATL-to-BHM month results, September 2025 had the highest on-time rate: 91.9% of 260 flights. July 2025 was lowest at 73.7% across 285 flights.

MonthFlightsOn time30+ minCancelled
July 202528573.7%16.5%0.4%
August 202525483.1%11.4%1.2%
September 202526091.9%5.0%0.0%
October 202528589.5%6.7%0.0%
November 202526284.7%8.0%3.4%
December 202527677.2%13.0%2.9%
January 202624474.2%13.1%4.5%
February 202623287.9%8.2%0.4%
March 202628680.8%10.5%2.1%
April 202630086.7%8.3%2.3%
May 202631777.3%13.2%1.9%
June 202630583.6%9.8%1.6%

What drove ATL to BHM delay minutes?

Airline was the largest recorded ATL-to-BHM delay category, accounting for 55.3% of 33,391 BTS-attributed delay minutes during July 2025–June 2026.

Airline55.3%
Late aircraft28.0%
National airspace11.1%
Weather5.6%
Security0.1%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.