Detroit (DTW) to Knoxville (TYS): On-Time Performance
Data through May 2026
Detroit (DTW) to Knoxville (TYS) is a thinner route than most in this dataset — 0 departures over the past year, roughly 1 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 85% arrived on time, comfortably above the national average of 78%.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 0.00
- last 12 months
- Duration
- 1h 35m
- scheduled
- Distance
- 443 mi
Monthly on-time trend
Best time to fly from DTW to TYS
Aim for departures around 10 a.m. (94% on-time); avoid 7 p.m. departures (74%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 9 min |
| Tuesday | 89% | 6 min |
| Wednesday | 83% | 12 min |
| Thursday | 82% | 12 min |
| Friday | 87% | 13 min |
| Saturdaybest | 91% | 3 min |
| Sunday | 83% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft52%
- Airline operations34%
- National airspace system11%
- Weather5%
Frequently asked questions
- How often are flights from DTW to TYS delayed?
- 15% of DTW–TYS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from DTW to TYS?
- Departures around 10 a.m. have the best record (94% on-time), while departures around 7 p.m. have the worst (74%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DTW to TYS?
- The scheduled DTW–TYS flight time averages 1h 35m over 443 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are DTW to TYS flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What day of the week is most reliable for DTW to TYS?
- Saturday flights have the best record at 91% on-time. Day-of-week differences on this route are meaningful — Thursday trails at 82%.
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Based on 399 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.