Carrier route record
AADFW→TYS
American Airlines · Dallas-Fort Worth to Knoxville
- Flights
- 1,338
- Period
- September 2025 to August 2026
- Share of route
- 76%
- Carriers
- 4
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with American Airlines.
American on DFW to TYS carries a cancellation problem, not just a delay problem: 3.2% of scheduled flights never operate, against 1.9% nationally. Of the ones that do fly, about seven flights in ten arrive on time, worth a C− overall. The punctuality figure counts only flights that actually departed, so it flatters an operation that cancels this often. That rests on 1,338 flights, with a median arrival 1 minute early.
The national on-time rate over the same period is 77.3%, so American on DFW to TYS runs 8 points behind the country as a whole. Across a thousand flights that is about 82 extra late arrivals.
Key figures
On time
69.1%
Arrivals under 15 minutes late, of 1,292 completed flights
Avg delay
68 min
Across delayed arrivals only, not all flights
Cancelled
3.21%
National rate is 1.89%
Whole route
71.8%
Every carrier on DFW to TYS, 1,762 flights
These figures cover 1,338 flights between September 2025 and August 2026. Beyond the headline rate, 11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
American against every carrier on DFW to TYS
American flew 1,338 of the 1,762 flights on DFW to TYS, most of the route. Its 69.1% on time is 3 points worse than the route as a whole, which runs 71.8%. Ranked by on-time rate it is number three of four carriers on the route, where the range runs from Envoy at 91.2% to SkyWest at 66.7%. Three of those carriers flew fewer than 365 flights here, so treat their positions as rough.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Envoy Airthin sample | 92 | 91.2% | 33 min | 1.09% | A |
| PSA Airlinesthin sample | 327 | 77.3% | 90 min | 1.53% | B |
| American Airlines (this page) | 1,338 | 69.1% | 68 min | 3.21% | C− |
| SkyWest Airlinesthin sample | 5 | 66.7% | 30 min | 40.00% | C− |
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When American runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am375 flights82.5%
- 11am–2pm320 flights71.7%
- 2pm–5pm286 flights64.2%
- 5pm–8pm39 flights58.8%
- 8pm–5am318 flights56.2%
Scale runs 50% to 90%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 56.2% on time, against 82.5% for the 8am–11am slot. By evening the aircraft flying these rotations have absorbed a full day of small delays and there is no slack left to recover in. The 8am–11am window is the busiest, with 375 flights scheduled in it.
Across the year
American on DFW to TYS through the year
June is the worst month at 47.1% on time, 35 points below February, the best at 82.2%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. March was the busiest month here, with 124 flights.
Across the week, Tuesday is the strongest day at 77.3% on time and Monday the weakest at 62.2%, a spread of 15 points.
Arrival by arrival
How late American on DFW to TYS runs when it is late
The 399 late arrivals split 136 under half an hour, 120 between 30 and 60 minutes, and 143 an hour or more.
- 15+ min early273 flights21.1%
- Within 15 min620 flights48.0%
- 15–29 min late136 flights10.5%
- 30–59 min late120 flights9.3%
- 1–2 hours late76 flights5.9%
- 2+ hours late67 flights5.2%
Scale runs 0% to 100%.
Share of 1,292 completed flights by arrival against schedule.
88 of 440 late departures made up the time and arrived on time, 20% of them. 47 flights left on time and still arrived late.
The worst days
Worst days for American on DFW to TYS
The latest arrival of the period was on 5 September 2025, 8 hours 7 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 5 September 2025 | 8 hours 7 minutes | Late-arriving aircraft |
| 13 July 2026 | 6 hours 37 minutes | Late-arriving aircraft |
| 24 November 2025 | 5 hours 40 minutes | Late-arriving aircraft |
| 14 February 2026 | 5 hours 30 minutes | Late-arriving aircraft |
| 16 June 2026 | 5 hours 21 minutes | Carrier |
Delay causes
Why American runs late on this route
Late-arriving aircraft accounts for 56% of the 27,000 delay minutes carriers reported here, and the remaining four split what is left.
- 56%Late-arriving aircraft
- 28%Carrier
- 11%National Airspace System
- 5%Extreme weather
- 0%Security
56% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 27,000 reported delay minutes here, that single category outweighs weather by 12 to one. The split is drawn from 27,106 reported delay minutes.
The practical consequence: the 8am–11am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 82.5% on time here.
Cancellations run at 3.21%, against 1.89% nationally. That is about one flight in 30 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.
Connections and stage length
What a delay here costs
11.1% of arrivals land a full hour or more behind schedule, against 8.3% nationally. Ninety minutes is the honest minimum for a connection here, and two hours if the onward flight is on a separate ticket.
The 772 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg is a different operation and performs like one: it runs 76.4% on time across 1,338 flights, 7 points above this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 7 points of difference.
The sample behind these figures is 1,338 flights, enough that the headline rate is stable to within roughly a point. The hour-block and month splits divide that further, so read the thinner bars with more caution than the headline.
What to do with this
Booking American on DFW to TYS
Put together: the delay figures matter less here than the 3.21% cancellation rate. A late arrival costs you about an hour; a cancelled flight costs you the day. Book the 8am–11am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 1,292 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.