Knoxville (TYS) to Miami (MIA): On-Time Performance
Data through July 2026
The calendar drives reliability on TYS–MIA. April 2026 flights landed on schedule 100% of the time, but June 2025 dropped to 64% — a gap of 36 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (84% vs 69%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 0.6%
- Flights/day
- 1.3
- last 12 months
- Duration
- 2h 11m
- scheduled
- Distance
- 724 mi
Best airline from TYS to MIA
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 85% | 12 min | 0.4% | 718 |
| American Airlines | 72% | 48 min | 1.2% | 164 |
Monthly on-time trend
Best time to fly from TYS to MIA
Aim for departures around 5 a.m. (91% on-time); avoid 7 p.m. departures (64%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 12 min |
| Tuesday | 85% | 14 min |
| Wednesday | 88% | 14 min |
| Thursdaybest | 89% | 20 min |
| Friday | 79% | 30 min |
| Saturday | 74% | 25 min |
| Sunday | 76% | 17 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft22%
- Airline operations58%
- National airspace system12%
- Weather7%
Frequently asked questions
- How often are flights from TYS to MIA delayed?
- 19% of TYS–MIA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from TYS to MIA?
- Envoy Air has the best on-time record on this route at 85%, based on 718 flights. 2 airlines flew TYS–MIA frequently enough to compare in this period.
- What is the best time of day to fly from TYS to MIA?
- Departures around 5 a.m. have the best record (91% on-time), while departures around 7 p.m. have the worst (64%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from TYS to MIA?
- The scheduled TYS–MIA flight time averages 2h 11m over 724 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are TYS to MIA flights cancelled?
- 0.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from TYS to MIA?
- June 2025 was the roughest month in this dataset, with only 64% of arrivals on time. The best was April 2026 at 100%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 899 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.