Knoxville (TYS) to Dallas/Fort Worth (DFW): On-Time Performance
Data through May 2026
When you fly TYS to DFW matters as much as anything else about the booking: the route swung from 88% on-time in August 2024 to just 66% in June 2024. Across the full period the route averages 77% on-time against a national 78%. Morning departures also hold up better than evening ones (85% vs 63%), which matters most in the rough months.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 25 min
- completed flights
- Cancelled
- 2.9%
- Flights/day
- 4.7
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 772 mi
Best airline from TYS to DFW
3 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 85% | 11 min | 1.4% | 143 |
| PSA Airlines | 79% | 20 min | 1.2% | 507 |
| American Airlines | 76% | 26 min | 3.3% | 2,487 |
Monthly on-time trend
Best time to fly from TYS to DFW
Aim for departures around 10 a.m. (89% on-time); avoid 6 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 29 min |
| Tuesday | 79% | 19 min |
| Wednesday | 76% | 21 min |
| Thursdaybest | 80% | 20 min |
| Friday | 76% | 26 min |
| Saturday | 78% | 31 min |
| Sunday | 74% | 28 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft42%
- Airline operations41%
- National airspace system10%
- Weather7%
Frequently asked questions
- How often are flights from TYS to DFW delayed?
- 23% of TYS–DFW 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 25 minutes.
- Which airline is most reliable from TYS to DFW?
- Envoy Air has the best on-time record on this route at 85%, based on 143 flights. 3 airlines flew TYS–DFW frequently enough to compare in this period.
- What is the best time of day to fly from TYS to DFW?
- Departures around 10 a.m. have the best record (89% on-time), while departures around 6 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from TYS to DFW?
- The scheduled TYS–DFW flight time averages 2h 33m over 772 miles. Actual arrival times vary — flights on this route land 15+ minutes late 23% of the time.
- How often are TYS to DFW flights cancelled?
- 2.9% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, slightly above the national rate of 1.6%.
- What is the worst month to fly from TYS to DFW?
- June 2024 was the roughest month in this dataset, with only 66% of arrivals on time. The best was August 2024 at 88%. If your dates are flexible, that 22-point gap is worth planning around.
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Based on 3,180 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.