ON TIMEBOARD

DL 5347 on time

Delta Air Lines 5347: Detroit to Knoxville at 8:40 a.m. (past 12 months)

On time
84%
341 flights · likely 79–87%
Cancelled
1.2%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+72 min
average delay
Similar flights
84%
DL, same route & hour

About 1 in 6 DL 5347 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (16%); 1.2% were cancelled. The typical flight landed 9 minutes early.

DL 5347: DTW → TYS

Scheduled to leave Detroit at 8:40 a.m. local time, operated by Endeavor Air as 9E 5347. Over the past year it arrived on time 84% of the time (341 flights), in line with other DL flights on the route at that hour (84%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 97% on time (31 flights)97OctNov 2025: 83% on time (30 flights)83NovDec 2025: 63% on time (19 flights)63DecJan 2026: 65% on time (23 flights)65JanFeb 2026: 83% on time (24 flights)83FebMar 2026: 87% on time (31 flights)87MarApr 2026: 83% on time (30 flights)83AprMay 2026: 87% on time (31 flights)87MayJun 2026: 90% on time (30 flights)90JunJul 2026: 84% on time (31 flights)84JulAug 2026: 74% on time (31 flights)74Aug

By day of week

DayFlightsOn time
Monday5080%
Tuesday5080%
Wednesday5082%
Thursday5090%
Friday5092%
Saturday4589%
Sunday4672%

Why it was late

Airline (crew, maintenance, ops) 59%Late inbound plane 25%Air traffic & airport (NAS) 13%Severe weather 3%

All flights DTW → TYS · Connecting off DL 5347? Check the risk

Questions

How often is DL 5347 from DTW to TYS late?

Delta Air Lines 5347 from Detroit, MI to Knoxville, TN arrived 15 or more minutes late, was diverted or was cancelled on 16% of 341 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.