About 1 in 4 DL 3143 flights from Lexington arrived 15+ minutes late, diverted or cancelled over the past year (24%); 2.4% were cancelled. The typical flight landed 19 minutes early.
DL 3143: LEX → ATL
Scheduled to leave Lexington at 5:56 p.m. local time. Over the past year it arrived on time 76% of the time (168 flights), in line with other DL flights on the route at that hour (78%). Last seen in the data Aug 30, 2026.
Usually Delta Air Lines's last flight of the day from Lexington to Atlanta (52% of days). Delta Air Lines's last LEX–ATL flight was cancelled 3.3% of the time, against 1.4% 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
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 26 | 81% |
| Tuesday | 22 | 77% |
| Wednesday | 22 | 82% |
| Thursday | 25 | 84% |
| Friday | 30 | 63% |
| Saturday | 19 | — |
| Sunday | 24 | 75% |
Why it was late
All flights LEX → ATL · Connecting off DL 3143? Check the risk
DL 3143: ATL → LEX
Scheduled to leave Atlanta at 3:59 p.m. local time. Over the past year it arrived on time 74% of the time (160 flights), worse than other DL flights on the route at that hour (78%). Last seen in the data Aug 30, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 24 | 63% |
| Tuesday | 24 | 79% |
| Wednesday | 24 | 92% |
| Thursday | 23 | 83% |
| Friday | 23 | 65% |
| Saturday | 19 | — |
| Sunday | 23 | 78% |
Why it was late
All flights ATL → LEX · Connecting off DL 3143? Check the risk
Questions
How often is DL 3143 from LEX to ATL late?
Delta Air Lines 3143 from Lexington, KY to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 24% of 168 scheduled flights between September 2025 and August 2026. 2.4% were cancelled.
How often is DL 3143 from ATL to LEX late?
Delta Air Lines 3143 from Atlanta, GA to Lexington, KY arrived 15 or more minutes late, was diverted or was cancelled on 26% of 160 scheduled flights between September 2025 and August 2026. 2.5% 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.