Carrier route record
OHGSP→CLT
PSA Airlines · Greer to Charlotte
- Flights
- 1,090
- Period
- July 2025 to June 2026
- Share of route
- 71%
- Carriers
- 3
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on GSP to CLT earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 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 1,090 flights, with a median arrival 12 minutes early.
Set against the rest of the country, PSA's GSP to CLT record is 7 points better than the US average of 77.6%. That gap is worth roughly 67 fewer late arrivals for every thousand flights.
Key figures
On time
84.3%
Arrivals under 15 minutes late, of 1,066 completed flights
Avg delay
114 min
Across delayed arrivals only, not all flights
Cancelled
2.11%
National rate is 1.81%
Whole route
83.7%
Every carrier on GSP to CLT, 1,532 flights
These figures cover 1,090 flights between July 2025 and June 2026. Beyond the headline rate, 8.4% 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 GSP to CLT
PSA flew 1,090 of the 1,532 flights on GSP to CLT, most of the route. Its 84.3% on time is about level with the route as a whole at 83.7%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from PSA at 84.3% to American at 81.9%. Two 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 |
|---|---|---|---|---|---|
| PSA Airlines (this page) | 1,090 | 84.3% | 114 min | 2.11% | B |
| Envoy Airthin sample | 129 | 82.8% | 50 min | 0.78% | B+ |
| American Airlinesthin sample | 313 | 81.9% | 87 min | 2.88% | B |
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 30 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–8am584 flights91.0%
- 8am–11am249 flights89.6%
- 11am–2pm30 flights—
- 2pm–5pm46 flights63.0%
- 5pm–8pm181 flights61.1%
- 8pm–5am—
Scale runs 55% to 95%. Rows with fewer than 30 flights show a dash.
The 5pm–8pm window is where this operation falls apart: 61.1% on time, against 91.0% for the 5am–8am 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 5am–8am window is the busiest, with 584 flights scheduled in it.
Across the year
PSA on GSP to CLT through the year
July is the worst month at 72.9% on time, 24 points below September, the best at 96.9%. 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. July was the busiest month here, with 118 flights.
Across the week, Thursday is the strongest day at 89.2% on time and Monday the weakest at 79.7%. 10 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. Late-arriving aircraft accounts for 52% of the 19,000 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.
- 52%Late-arriving aircraft
- 34%Carrier
- 8%National Airspace System
- 6%Extreme weather
- 0%Security
52% 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 19,000 reported delay minutes here, that single category outweighs weather by 9 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 18,965 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 91.0% on time here.
Cancellations sit at 2.11% against a national 1.81%, which is ordinary. Diversions add another 0.09%.
Connections and stage length
What a delay here costs
8.4% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.
At 75 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 66.9% on time across 1,090 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. 1,090 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 GSP to CLT
Put together: treat all of this as provisional. 1,090 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 84.3% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 1,066 completed flights over 12 months sit behind that.
Related
Where to go next
- GSP to CLT, every carrier
- PSA on CLT to GSP, the return leg
- Envoy Air on GSP to CLT82.8%
- American Airlines on GSP to CLT81.9%
- PSA Airlines network-wide record
- Charlotte Douglas International (CLT) delay statistics
- Why the first flight of the morning is statistically safest
- The best time of day to fly, according to 7.04 million flight records
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.