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Delta Air Lines / ATL → MSY

DL 3146 on time

Delta Air Lines 3146: Atlanta to New Orleans at 3:19 p.m.; New Orleans to Atlanta at 5:16 p.m. (past 12 months). Figures below the title are for ATL → MSY, its busiest leg

On time
76%
255 flights · likely 70–81%
Cancelled
2.0%
of scheduled flights
Typical arrival
−2 min
median vs schedule
When late
+61 min
average delay
Similar flights
78%
DL, same route & hour

About 1 in 4 DL 3146 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (24%); 2.0% were cancelled. The typical flight landed 2 minutes early.

DL 3146: ATL → MSY

Scheduled to leave Atlanta at 3:19 p.m. local time. Over the past year it arrived on time 76% of the time (255 flights), in line with other DL flights on the route at that hour (78%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Apr 2025: 80% on time (30 flights)80AprMay 2025: 74% on time (31 flights)74MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 61% on time (31 flights)61JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 68% on time (31 flights)68MarApr 2026: 93% on time (30 flights)93AprMay 2026: 74% on time (31 flights)74MayJun 2026: 83% on time (30 flights)83JunJul 2026: 58% on time (31 flights)58JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday3784%
Tuesday3683%
Wednesday3681%
Thursday3675%
Friday3656%
Saturday3778%
Sunday3773%

Why it was late

Airline (crew, maintenance, ops) 41%Late inbound plane 24%Air traffic & airport (NAS) 19%Severe weather 13%Security 2%

All flights ATL → MSY · Connecting off DL 3146? Check the risk

DL 3146: MSY → ATL

Scheduled to leave New Orleans at 5:16 p.m. local time. Over the past year it arrived on time 78% of the time (167 flights), in line with other DL flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Feb 2025: 71% on time (28 flights)71FebMar 2025: 65% on time (31 flights)65MarApr 2025: 73% on time (30 flights)73AprMay 2025: 80% on time (30 flights)80MayJun 2025: too few flights (7 flights)JunDec 2025: too few flights (12 flights)DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 89% on time (28 flights)89FebMar 2026: 68% on time (31 flights)68MarApr 2026: 83% on time (30 flights)83AprMay 2026: too few flights (6 flights)MayAug 2026: 69% on time (29 flights)69Aug

By day of week

DayFlightsOn time
Monday2584%
Tuesday2475%
Wednesday2492%
Thursday2391%
Friday2370%
Saturday2471%
Sunday2463%

Why it was late

Airline (crew, maintenance, ops) 56%Late inbound plane 26%Air traffic & airport (NAS) 16%Severe weather 3%

All flights MSY → ATL · Connecting off DL 3146? Check the risk

Questions

How often is DL 3146 from ATL to MSY late?

Delta Air Lines 3146 from Atlanta, GA to New Orleans, LA arrived 15 or more minutes late, was diverted or was cancelled on 24% of 255 scheduled flights between September 2025 and August 2026. 2.0% were cancelled.

How often is DL 3146 from MSY to ATL late?

Delta Air Lines 3146 from New Orleans, LA to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 22% of 167 scheduled flights between September 2025 and August 2026. 3.0% 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.