Carrier route record
OHCLT→TYS
PSA Airlines · Charlotte to Knoxville
- Flights
- 606
- Period
- July 2025 to June 2026
- Share of route
- 70%
- Carriers
- 4
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on CLT to TYS sits in the middle of the pack with a C−. About seven flights in ten arrive on time by the DOT's definition, 9 points worse than the national rate of 77.6%. The late ones land a little over an hour behind schedule. That rests on 606 flights, with a median arrival 2 minutes early.
The national on-time rate over the same period is 77.6%, so PSA on CLT to TYS runs 9 points behind the country as a whole. Across a thousand flights that is about 89 extra late arrivals.
Key figures
On time
68.7%
Arrivals under 15 minutes late, of 584 completed flights
Avg delay
78 min
Across delayed arrivals only, not all flights
Cancelled
3.30%
National rate is 1.81%
Whole route
70.0%
Every carrier on CLT to TYS, 866 flights
These figures cover 606 flights between July 2025 and June 2026. Beyond the headline rate, 12.3% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
PSA against every carrier on CLT to TYS
PSA flew 606 of the 866 flights on CLT to TYS, most of the route. Its 68.7% on time is about level with the route as a whole at 70.0%. Ranked by on-time rate it is last of four carriers on the route, where the range runs from Envoy at 88.5% to PSA at 68.7%. 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 | 26 | 88.5% | 36 min | 0.00% | A+ |
| SkyWest Airlinesthin sample | 41 | 73.2% | 93 min | 0.00% | C+ |
| American Airlinesthin sample | 193 | 70.8% | 74 min | 0.52% | C+ |
| PSA Airlines (this page) | 606 | 68.7% | 78 min | 3.30% | C− |
Departure window
When PSA runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 19 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.
- 5am–8am—
- 8am–11am73 flights74.6%
- 11am–2pm31 flights83.9%
- 2pm–5pm74 flights68.6%
- 5pm–8pm117 flights70.9%
- 8pm–5am311 flights64.9%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 64.9% on time, against 83.9% for the 11am–2pm 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 8pm–5am window is the busiest, with 311 flights scheduled in it.
Across the year
PSA on CLT to TYS through the year
November is the best month on the calendar at 87.0% 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 88 flights.
Across the week, Saturday is the strongest day at 74.3% on time and Sunday the weakest at 63.6%. 11 points is a smaller lever than departure hour, but it is free.
Delay causes
Why PSA runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 14,000 reported delay minutes.
- 41%Late-arriving aircraft
- 40%Carrier
- 12%National Airspace System
- 8%Extreme weather
- 0%Security
41% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 14,000 reported delay minutes here, that single category outweighs weather by 5 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 14,260 reported delay minutes.
The largest share of delay minutes, 40%, 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 5,670 of the 14,000 delay minutes reported here.
Cancellations run at 3.30%, against 1.81% 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
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 12.3% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
At 176 miles this is a short hop, and stage length matters more than it looks. A flight this short spends under two hours in the air, which leaves almost nothing to claw back a late pushback with. Delay here is decided on the ground, in the turn, which is why the 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 81.6% on time across 607 flights, 13 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 13 points of difference.
One caution: this is a thin sample. 606 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 PSA on CLT to TYS
Put together: the delay figures matter less here than the 3.30% cancellation rate. A late arrival costs you a little over an hour; a cancelled flight costs you the day. Book the 11am–2pm departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 584 completed flights over 12 months sit behind that.
Related
Where to go next
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.