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Delta Air Lines / ATL → SDF

DL 1126 on time

Delta Air Lines 1126: Atlanta to Louisville at 4:25 p.m.; Louisville to Atlanta at 5:35 p.m. (past 12 months). Figures below the title are for ATL → SDF, its busiest leg

On time
77%
252 flights · likely 72–82%
Cancelled
0.8%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+62 min
average delay
Similar flights
80%
DL, same route & hour

About 1 in 4 DL 1126 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (23%); 0.8% were cancelled. The typical flight landed 4 minutes early.

DL 1126: ATL → SDF

Scheduled to leave Atlanta at 4:25 p.m. local time. Over the past year it arrived on time 77% of the time (252 flights), in line with other DL flights on the route at that hour (80%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 87% on time (30 flights)87AprMay 2025: 71% on time (31 flights)71MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (11 flights)DecJan 2026: 76% on time (29 flights)76JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 68% on time (31 flights)68MarApr 2026: 87% on time (30 flights)87AprMay 2026: 74% on time (31 flights)74MayJun 2026: 80% on time (30 flights)80JunJul 2026: 65% on time (31 flights)65JulAug 2026: 81% on time (31 flights)81Aug

By day of week

DayFlightsOn time
Monday3789%
Tuesday3669%
Wednesday3683%
Thursday3678%
Friday3686%
Saturday3574%
Sunday3661%

Why it was late

Airline (crew, maintenance, ops) 52%Late inbound plane 23%Air traffic & airport (NAS) 20%Severe weather 5%

All flights ATL → SDF · Connecting off DL 1126? Check the risk

DL 1126: SDF → ATL

Scheduled to leave Louisville at 5:35 p.m. local time. Over the past year it arrived on time 81% of the time (215 flights), worse than other DL flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Louisville to Atlanta (65% of days). Delta Air Lines's last SDF–ATL flight was cancelled 0.8% of the time, against 1.6% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 6:00 a.m. the next morning.

Month by month

40%70%100%Jan 2025: 77% on time (31 flights)77JanFeb 2025: 71% on time (28 flights)71FebMar 2025: too few flights (8 flights)MarDec 2025: too few flights (11 flights)DecJan 2026: too few flights (4 flights)JanFeb 2026: 88% on time (17 flights)88FebMar 2026: 84% on time (31 flights)84MarApr 2026: 100% on time (30 flights)100AprMay 2026: 77% on time (31 flights)77MayJun 2026: 83% on time (30 flights)83JunJul 2026: 57% on time (30 flights)57JulAug 2026: 84% on time (31 flights)84Aug

By day of week

DayFlightsOn time
Monday3190%
Tuesday3083%
Wednesday3090%
Thursday3181%
Friday3177%
Saturday3093%
Sunday3256%

Why it was late

Late inbound plane 60%Air traffic & airport (NAS) 30%Airline (crew, maintenance, ops) 6%Severe weather 4%

All flights SDF → ATL · Connecting off DL 1126? Check the risk

Questions

How often is DL 1126 from ATL to SDF late?

Delta Air Lines 1126 from Atlanta, GA to Louisville, KY arrived 15 or more minutes late, was diverted or was cancelled on 23% of 252 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

How often is DL 1126 from SDF to ATL late?

Delta Air Lines 1126 from Louisville, KY to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 19% of 215 scheduled flights between September 2025 and August 2026. 0.9% 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.