ON TIMEBOARD

DL 3012 on time

Delta Air Lines 3012: Atlanta to Birmingham at 12:15 p.m.; Birmingham to Atlanta at 2:10 p.m. (past 12 months). Figures below the title are for ATL → BHM, its busiest leg

On time
87%
357 flights · likely 83–90%
Cancelled
0.3%
of scheduled flights
Typical arrival
−10 min
median vs schedule
When late
+73 min
average delay
Similar flights
89%
DL, same route & hour

About 1 in 7 DL 3012 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (13%); 0.3% were cancelled. The typical flight landed 10 minutes early.

DL 3012: ATL → BHM

Scheduled to leave Atlanta at 12:15 p.m. local time. Over the past year it arrived on time 87% of the time (357 flights), in line with other DL flights on the route at that hour (89%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (29 flights)100SepOct 2025: 97% on time (30 flights)97OctNov 2025: 90% on time (30 flights)90NovDec 2025: 90% on time (29 flights)90DecJan 2026: 70% on time (27 flights)70JanFeb 2026: 93% on time (28 flights)93FebMar 2026: 84% on time (31 flights)84MarApr 2026: 93% on time (30 flights)93AprMay 2026: 84% on time (31 flights)84MayJun 2026: 77% on time (30 flights)77JunJul 2026: 87% on time (31 flights)87JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5383%
Tuesday5285%
Wednesday5287%
Thursday5294%
Friday5188%
Saturday4787%
Sunday5082%

Why it was late

Airline (crew, maintenance, ops) 58%Late inbound plane 16%Air traffic & airport (NAS) 13%Severe weather 13%

All flights ATL → BHM · Connecting off DL 3012? Check the risk

DL 3012: BHM → ATL

Scheduled to leave Birmingham at 2:10 p.m. local time. Over the past year it arrived on time 86% of the time (356 flights), worse than other DL flights on the route at that hour (91%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (28 flights)100SepOct 2025: 97% on time (30 flights)97OctNov 2025: 93% on time (30 flights)93NovDec 2025: 93% on time (29 flights)93DecJan 2026: 74% on time (27 flights)74JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 87% on time (31 flights)87MarApr 2026: 93% on time (30 flights)93AprMay 2026: 94% on time (31 flights)94MayJun 2026: 77% on time (30 flights)77JunJul 2026: 65% on time (31 flights)65JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5387%
Tuesday5285%
Wednesday5290%
Thursday5290%
Friday5182%
Saturday4787%
Sunday4982%

Why it was late

Late inbound plane 47%Air traffic & airport (NAS) 35%Airline (crew, maintenance, ops) 15%Severe weather 3%

All flights BHM → ATL · Connecting off DL 3012? Check the risk

Questions

How often is DL 3012 from ATL to BHM late?

Delta Air Lines 3012 from Atlanta, GA to Birmingham, AL arrived 15 or more minutes late, was diverted or was cancelled on 13% of 357 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

How often is DL 3012 from BHM to ATL late?

Delta Air Lines 3012 from Birmingham, AL to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 14% of 356 scheduled flights between September 2025 and August 2026. 0.3% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.