ON TIMEBOARD

DL 1478 on time

Delta Air Lines 1478: Atlanta to Detroit at 6:45 p.m. (past 12 months)

On time
75%
347 flights · likely 70–79%
Cancelled
0.0%
of scheduled flights
Typical arrival
−5 min
median vs schedule
When late
+70 min
average delay
Similar flights
75%
DL, same route & hour

About 1 in 4 DL 1478 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (25%); 0.0% were cancelled. The typical flight landed 5 minutes early.

DL 1478: ATL → DTW

Scheduled to leave Atlanta at 6:45 p.m. local time. Over the past year it arrived on time 75% of the time (347 flights), in line with other DL flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 100% on time (30 flights)100SepOct 2025: 87% on time (31 flights)87OctNov 2025: 73% on time (30 flights)73NovDec 2025: 58% on time (31 flights)58DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 79% on time (28 flights)79FebMar 2026: 81% on time (31 flights)81MarApr 2026: 80% on time (30 flights)80AprMay 2026: 55% on time (31 flights)55MayJun 2026: 90% on time (21 flights)90JunJul 2026: 43% on time (30 flights)43JulAug 2026: 87% on time (23 flights)87Aug

By day of week

DayFlightsOn time
Monday5368%
Tuesday4576%
Wednesday4580%
Thursday5279%
Friday5267%
Saturday4881%
Sunday5277%

Why it was late

Airline (crew, maintenance, ops) 45%Late inbound plane 24%Air traffic & airport (NAS) 20%Severe weather 11%

All flights ATL → DTW · Connecting off DL 1478? Check the risk

Questions

How often is DL 1478 from ATL to DTW late?

Delta Air Lines 1478 from Atlanta, GA to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 25% of 347 scheduled flights between September 2025 and August 2026. 0.0% 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.