About 1 in 4 DL 5279 flights from Knoxville arrived 15+ minutes late, diverted or cancelled over the past year (27%); 0.8% were cancelled. The typical flight landed 12 minutes early.
DL 5279: TYS → ATL
Scheduled to leave Knoxville at 8:35 a.m. local time, operated by Endeavor Air as 9E 5279. Over the past year it arrived on time 73% of the time (357 flights), in line with other DL flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 66% |
| Tuesday | 52 | 69% |
| Wednesday | 52 | 79% |
| Thursday | 52 | 73% |
| Friday | 52 | 73% |
| Saturday | 45 | 80% |
| Sunday | 51 | 73% |
Why it was late
All flights TYS → ATL · Connecting off DL 5279? Check the risk
Questions
How often is DL 5279 from TYS to ATL late?
Delta Air Lines 5279 from Knoxville, TN to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 27% of 357 scheduled flights between September 2025 and August 2026. 0.8% 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.