Dallas/Fort Worth (DFW) to Knoxville (TYS): On-Time Performance
Data through July 2026
Dallas/Fort Worth (DFW) to Knoxville (TYS) effectively runs on two schedules. In February 2026, 82% of arrivals were on time; in June 2025 that fell to 52% — a 30-point seasonal swing. Across the full period the route averages 69% on-time against a national 78%. Morning departures also hold up better than evening ones (81% vs 57%), which matters most in the rough months.
- On-time
- 69%
- arrived <15 min late
- Avg delay
- 25 min
- completed flights
- Cancelled
- 2.8%
- Flights/day
- 4.8
- last 12 months
- Duration
- 2h 10m
- scheduled
- Distance
- 772 mi
Best airline from DFW to TYS
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 86% | 6 min | 1.4% | 139 |
| PSA Airlines | 72% | 28 min | 1.5% | 602 |
| American Airlines | 67% | 25 min | 3.1% | 2,619 |
Monthly on-time trend
Best time to fly from DFW to TYS
Aim for departures around 7 a.m. (88% on-time); avoid 4 p.m. departures (47%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 65% | 29 min |
| Tuesdaybest | 75% | 18 min |
| Wednesday | 69% | 23 min |
| Thursday | 69% | 25 min |
| Friday | 70% | 24 min |
| Saturday | 68% | 25 min |
| Sunday | 67% | 27 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft56%
- Airline operations27%
- National airspace system11%
- Weather5%
Frequently asked questions
- How often are flights from DFW to TYS delayed?
- 31% of DFW–TYS 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 25 minutes.
- Which airline is most reliable from DFW to TYS?
- Envoy Air has the best on-time record on this route at 86%, based on 139 flights. 3 airlines flew DFW–TYS frequently enough to compare in this period.
- What is the best time of day to fly from DFW to TYS?
- Departures around 7 a.m. have the best record (88% on-time), while departures around 4 p.m. have the worst (47%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DFW to TYS?
- The scheduled DFW–TYS flight time averages 2h 10m over 772 miles. Actual arrival times vary — flights on this route land 15+ minutes late 31% of the time.
- How often are DFW to TYS flights cancelled?
- 2.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from DFW to TYS?
- June 2025 was the roughest month in this dataset, with only 52% of arrivals on time. The best was February 2026 at 82%. If your dates are flexible, that 30-point gap is worth planning around.
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Based on 3,403 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.