ON TIMEBOARD

DL 4894 on time

Delta Air Lines 4894: Detroit to Chattanooga at 8:10 p.m. (past 12 months)

On time
75%
249 flights · likely 69–80%
Cancelled
1.2%
of scheduled flights
Typical arrival
−7 min
median vs schedule
When late
+89 min
average delay
Similar flights
66%
DL, same route & hour

About 1 in 4 DL 4894 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (25%); 1.2% were cancelled. The typical flight landed 7 minutes early.

DL 4894: DTW → CHA

Scheduled to leave Detroit at 8:10 p.m. local time, operated by Endeavor Air as 9E 4894. Over the past year it arrived on time 75% of the time (249 flights), better than other DL flights on the route at that hour (66%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Detroit to Chattanooga (88% of days). Delta Air Lines's last DTW–CHA flight was cancelled 1.2% of the time, against 0.4% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 12:30 p.m. the next morning.

Month by month

20%60%100%Jun 2025: 55% on time (29 flights)55JunJul 2025: 68% on time (31 flights)68JulAug 2025: 81% on time (31 flights)81AugSep 2025: 97% on time (30 flights)97SepOct 2025: 93% on time (30 flights)93OctNov 2025: 76% on time (29 flights)76NovDec 2025: 32% on time (19 flights)32DecApr 2026: 89% on time (18 flights)89AprMay 2026: 77% on time (31 flights)77MayJun 2026: 77% on time (30 flights)77JunJul 2026: 52% on time (31 flights)52JulAug 2026: 71% on time (31 flights)71Aug

By day of week

DayFlightsOn time
Monday3773%
Tuesday3669%
Wednesday3681%
Thursday3476%
Friday3683%
Saturday3583%
Sunday3557%

Why it was late

Late inbound plane 57%Airline (crew, maintenance, ops) 30%Air traffic & airport (NAS) 11%Severe weather 2%

All flights DTW → CHA · Connecting off DL 4894? Check the risk

Questions

How often is DL 4894 from DTW to CHA late?

Delta Air Lines 4894 from Detroit, MI to Chattanooga, TN arrived 15 or more minutes late, was diverted or was cancelled on 25% of 249 scheduled flights between September 2025 and August 2026. 1.2% 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.