Carrier route record
OOTYS→DEN
SkyWest Airlines · Knoxville to Denver
- Flights
- 394
- Period
- July 2025 to June 2026
- Share of route
- 41%
- Carriers
- 5
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on TYS to DEN earns an A. Nearly every flight arrives inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 15 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 394 flights, with a median arrival 15 minutes early.
Set against the rest of the country, SkyWest's TYS to DEN record is 15 points better than the US average of 77.6%. That gap is worth roughly 154 fewer late arrivals for every thousand flights.
Key figures
On time
93.0%
Arrivals under 15 minutes late, of 388 completed flights
Avg delay
102 min
Across delayed arrivals only, not all flights
Cancelled
1.27%
National rate is 1.81%
Whole route
84.8%
Every carrier on TYS to DEN, 967 flights
These figures cover 394 flights between July 2025 and June 2026. The median arrival is 15 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Carrier by carrier
SkyWest against every carrier on TYS to DEN
SkyWest flew 394 of the 967 flights on TYS to DEN, about 41% of it. Its 93.0% on time is 8 points better than the route as a whole, which runs 84.8%. Ranked by on-time rate it is first of five carriers on the route, where the range runs from SkyWest at 93.0% to Southwest at 69.0%. Four 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 |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 394 | 93.0% | 102 min | 1.27% | A |
| Allegiant Airthin sample | 66 | 82.5% | 52 min | 0.00% | B+ |
| United Airlinesthin sample | 335 | 81.4% | 73 min | 0.00% | B+ |
| Frontier Airlinesthin sample | 129 | 75.2% | 92 min | 0.00% | B+ |
| Southwest Airlinesthin sample | 43 | 69.0% | 86 min | 0.00% | C+ |
Flight by flight
SkyWest flight numbers on TYS to DEN
Departure window
When SkyWest runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 394 flights.
- 5am–8am—
- 8am–11am301 flights93.6%
- 11am–2pm—
- 2pm–5pm93 flights91.2%
- 5pm–8pm—
- 8pm–5am—
Scale runs 85% to 100%. Rows with fewer than 30 flights show a dash.
The 8am–11am window is the strongest at 93.6% on time. The full set of windows spans 2 points.
Across the year
SkyWest on TYS to DEN through the year
April is the best month on the calendar at 100.0% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. January was the busiest month here, with 62 flights.
Across the week, Friday is the strongest day at 98.1% on time and Thursday the weakest at 86.0%. 12 points is a smaller lever than departure hour, but it is free.
Delay causes
Why SkyWest runs late on this route
One category carries most of the weight here. Carrier accounts for 69% of the 2,757 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.
- 69%Carrier
- 21%Extreme weather
- 10%National Airspace System
Extreme weather accounts for 21% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 3.4 times the usual weather exposure. The split is drawn from 2,757 reported delay minutes.
The largest share of delay minutes, 69%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 1,902 of the 2,757 delay minutes reported here.
Cancellations sit at 1.27% against a national 1.81%, which is ordinary. Diversions add another 0.25%.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 3.1% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 1,162 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 76.1% on time across 393 flights, 17 points below 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 17 points of difference.
One caution: this is a thin sample. 394 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking SkyWest on TYS to DEN
Put together: treat all of this as provisional. 394 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 93.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 388 completed flights over 12 months sit behind that.
Related
Where to go next
- TYS to DEN, every carrier
- SkyWest on DEN to TYS, the return leg
- United Airlines on TYS to DEN81.4%
- Frontier Airlines on TYS to DEN75.2%
- SkyWest Airlines network-wide record
- Denver International (DEN) delay statistics
- Worst months to fly in the US, ranked by the data
- Late aircraft, weather, or the airline: what actually causes US flight delays
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.