About 1 in 4 DL 5117 flights from Detroit arrived 15+ minutes late, diverted or cancelled over the past year (26%); 0.6% were cancelled. The typical flight landed 10 minutes early.
DL 5117: DTW → CHA
Scheduled to leave Detroit at 12:25 p.m. local time, operated by Endeavor Air as 9E 5117. Over the past year it arrived on time 74% of the time (328 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
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 53 | 74% |
| Tuesday | 50 | 78% |
| Wednesday | 50 | 80% |
| Thursday | 50 | 72% |
| Friday | 50 | 64% |
| Saturday | 25 | 84% |
| Sunday | 50 | 74% |
Why it was late
All flights DTW → CHA · Connecting off DL 5117? Check the risk
DL 5117: CHA → DTW
Scheduled to leave Chattanooga at 3:00 p.m. local time, operated by Endeavor Air as 9E 5117. Over the past year it arrived on time 78% of the time (124 flights), in line with other DL flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.
Usually Delta Air Lines's last flight of the day from Chattanooga to Detroit (100% of days). Delta Air Lines's last CHA–DTW flight was cancelled 0.4% of the time, against 1.2% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 6:00 a.m. the next morning.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 21 | 81% |
| Tuesday | 20 | 80% |
| Wednesday | 20 | 80% |
| Thursday | 20 | 85% |
| Friday | 20 | 60% |
| Saturday | 4 | — |
| Sunday | 19 | — |
Why it was late
All flights CHA → DTW · Connecting off DL 5117? Check the risk
Questions
How often is DL 5117 from DTW to CHA late?
Delta Air Lines 5117 from Detroit, MI to Chattanooga, TN arrived 15 or more minutes late, was diverted or was cancelled on 26% of 328 scheduled flights between September 2025 and August 2026. 0.6% were cancelled.
How often is DL 5117 from CHA to DTW late?
Delta Air Lines 5117 from Chattanooga, TN to Detroit, MI arrived 15 or more minutes late, was diverted or was cancelled on 22% of 124 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.