Knoxville (TYS) to Dallas/Fort Worth (DFW): On-Time Performance
Data through July 2026
Delays are only half the story on TYS–DFW: 3% of its scheduled flights were outright cancelled, well above the US norm, so a backup plan matters more here than on most routes. When flights do go, 77% land on time, below the national average of 78%. Envoy Air has been the safer pick, arriving on time 86% of the time.
- On-time
- 77%
- arrived <15 min late
- Avg delay
- 25 min
- completed flights
- Cancelled
- 3.0%
- Flights/day
- 4.8
- last 12 months
- Duration
- 2h 33m
- scheduled
- Distance
- 772 mi
Best airline from TYS to DFW
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Envoy Airmost reliable | 86% | 11 min | 1.4% | 139 |
| PSA Airlines | 80% | 19 min | 1.7% | 603 |
| American Airlines | 75% | 27 min | 3.4% | 2,619 |
Monthly on-time trend
Best time to fly from TYS to DFW
Aim for departures around 10 a.m. (89% on-time); avoid 8 p.m. departures (37%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 29 min |
| Tuesdaybest | 80% | 18 min |
| Wednesday | 77% | 19 min |
| Thursday | 79% | 23 min |
| Friday | 75% | 24 min |
| Saturday | 78% | 30 min |
| Sunday | 73% | 29 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft45%
- Airline operations38%
- National airspace system9%
- Weather8%
Frequently asked questions
- How often are flights from TYS to DFW delayed?
- 24% of TYS–DFW 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 TYS to DFW?
- Envoy Air has the best on-time record on this route at 86%, based on 139 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 8 p.m. have the worst (37%). 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 24% of the time.
- How often are TYS to DFW flights cancelled?
- 3% of scheduled flights on this route were cancelled between 2024-07 and 2026-07 — several times the typical US rate, so consider earlier departures or backup options.
- What is the worst month to fly from TYS to DFW?
- June 2026 was the roughest month in this dataset, with only 64% of arrivals on time. The best was August 2024 at 88%. If your dates are flexible, that 24-point gap is worth planning around.
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Based on 3,404 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.