OnTimeRoutes
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Delta Air Lines ATL to BHM on-time performance

Delta Air Lines nonstop flights from Atlanta to Birmingham · Aug 2025 – Jul 2026

On-time arrivals
84%
arrived < 15 min late
Cancelled
1.8%
59 flights
Avg arrival delay
11 min
65 min when late
Rank on route
#1 of 1
route average 84% on time

Key facts

  • Delta Air Lines flights on ATL to BHM arrived on time 84% of the time in Aug 2025 – Jul 2026.
  • 1.8% were cancelled, and 6% arrived an hour or more late.
  • That ranks #1 of 1 airlines on this route, which averaged 84% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (55%).

On-time trend by month

60%80%100%July 2025: 73.9% on time, 0.4% cancelledJul ’25August 2025: 84.4% on time, 1.2% cancelledAug ’25September 2025: 91.9% on time, 0.0% cancelledSep ’25October 2025: 89.5% on time, 0.0% cancelledOct ’25November 2025: 87.7% on time, 3.4% cancelledNov ’25December 2025: 79.8% on time, 2.9% cancelledDec ’25January 2026: 77.7% on time, 4.5% cancelledJan ’26February 2026: 88.3% on time, 0.4% cancelledFeb ’26March 2026: 82.5% on time, 2.1% cancelledMar ’26April 2026: 88.7% on time, 2.3% cancelledApr ’26May 2026: 78.8% on time, 1.9% cancelledMay ’26June 2026: 85.3% on time, 1.6% cancelledJun ’26July 2026: 71.6% on time, 1.0% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)55%
  • Late-arriving aircraft28%
  • Air traffic control & airport congestion12%
  • Extreme weather5%
  • Security0%

Other airlines on ATL to BHM

3,334 Delta Air Lines flights tracked on this route; 59 cancelled, 3 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.