Carrier route record
OHTYS→CLT
PSA Airlines · Knoxville to Charlotte
- Flights
- 607
- 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 TYS to CLT lands a B−, 4 points better than the national rate of 77.6%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about 2.1 hours on average. That is a workable record, not a spotless one. That rests on 607 flights, with a median arrival 14 minutes early.
Set against the rest of the country, PSA's TYS to CLT record is 4 points better than the US average of 77.6%. That gap is worth roughly 40 fewer late arrivals for every thousand flights.
Key figures
On time
81.6%
Arrivals under 15 minutes late, of 588 completed flights
Avg delay
127 min
Across delayed arrivals only, not all flights
Cancelled
3.13%
National rate is 1.81%
Whole route
79.0%
Every carrier on TYS to CLT, 867 flights
These figures cover 607 flights between July 2025 and June 2026. Beyond the headline rate, 10.0% 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 TYS to CLT
PSA flew 607 of the 867 flights on TYS to CLT, most of the route. Its 81.6% on time is 3 points better than the route as a whole, which runs 79.0%. Ranked by on-time rate it is number two of four carriers on the route, where the range runs from Envoy at 92.3% to SkyWest at 65.0%. 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 | 92.3% | 43 min | 0.00% | A+ |
| PSA Airlines (this page) | 607 | 81.6% | 127 min | 3.13% | B− |
| American Airlinesthin sample | 193 | 71.9% | 125 min | 0.52% | C+ |
| SkyWest Airlinesthin sample | 41 | 65.0% | 73 min | 0.00% | 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 13 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–8am263 flights88.4%
- 8am–11am182 flights75.1%
- 11am–2pm72 flights77.6%
- 2pm–5pm56 flights75.0%
- 5pm–8pm34 flights82.4%
- 8pm–5am—
Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.
Book the early departure. Flights leaving between 5am–8am arrive on time 88.4% of the time, against 75.0% for the afternoon window. That is 13 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 5am–8am window is the busiest, with 263 flights scheduled in it.
Across the year
PSA on TYS to CLT through the year
December is the weak month at 63.3% on time, against 89.9% in May. Winter delays cluster: a single storm system can account for most of a month's shortfall, so an average December hides both very good weeks and genuinely unflyable days. January was the busiest month here, with 88 flights.
Across the week, Wednesday is the strongest day at 89.2% on time and Monday the weakest at 75.9%. 13 points is a smaller lever than departure hour, but it is free.
Delay causes
Why PSA runs late on this route
One category carries most of the weight here. Carrier accounts for 57% of the 14,000 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.
- 57%Carrier
- 29%Late-arriving aircraft
- 7%Extreme weather
- 6%National Airspace System
The largest share of delay minutes, 57%, 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 7,872 of the 14,000 delay minutes reported here. The split is drawn from 13,690 reported delay minutes.
The practical consequence: the 5am–8am departure is the one that starts clean. Its aircraft has no earlier leg to be late from, which is exactly why that window shows 88.4% on time here.
Cancellations run at 3.13%, 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. 10.0% 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 5am–8am window matters as much as it does.
The return leg is a different operation and performs like one: it runs 68.7% on time across 606 flights, 13 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 13 points of difference.
One caution: this is a thin sample. 607 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 TYS to CLT
Put together: the delay figures matter less here than the 3.13% cancellation rate. A late arrival costs you about 2.1 hours; a cancelled flight costs you the day. Book the 5am–8am departure so there is still a schedule behind you if it goes wrong, and treat a same-day connection as optimistic. 588 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.