Carrier route record
OHCLT→GSP
PSA Airlines · Charlotte to Greer
- Flights
- 1,108
- Period
- September 2025 to August 2026
- Share of route
- 72%
- Carriers
- 3
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with PSA Airlines.
PSA on CLT to GSP draws a D. About one flight in three arrives at least 15 minutes late, and the typical late arrival is an hour and a half behind schedule. Build slack into anything you connect to. That rests on 1,108 flights, with a median arrival right on schedule.
The national on-time rate over the same period is 77.3%, so PSA on CLT to GSP runs 12 points behind the country as a whole. Across a thousand flights that is about 124 extra late arrivals.
Key figures
On time
64.9%
Arrivals under 15 minutes late, of 1,084 completed flights
Avg delay
83 min
Across delayed arrivals only, not all flights
Cancelled
1.99%
National rate is 1.89%
Whole route
69.7%
Every carrier on CLT to GSP, 1,539 flights
These figures cover 1,108 flights between September 2025 and August 2026. Beyond the headline rate, 15.0% of arrivals land a full hour or more behind schedule, against 8.3% nationally.
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Carrier by carrier
PSA against every carrier on CLT to GSP
PSA flew 1,108 of the 1,539 flights on CLT to GSP, most of the route. Its 64.9% on time is 5 points worse than the route as a whole, which runs 69.7%. Ranked by on-time rate it is last of three carriers on the route, where the range runs from Envoy at 84.1% to PSA at 64.9%. 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 |
|---|---|---|---|---|---|
| Envoy Airthin sample | 152 | 84.1% | 59 min | 0.66% | B+ |
| American Airlinesthin sample | 279 | 81.1% | 74 min | 3.23% | B− |
| PSA Airlines (this page) | 1,108 | 64.9% | 83 min | 1.99% | D |
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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 18 points, against half a point between the best and worst carrier.
- 5am–8am—
- 8am–11am11 flights—
- 11am–2pm100 flights75.0%
- 2pm–5pm153 flights59.1%
- 5pm–8pm352 flights74.6%
- 8pm–5am492 flights57.3%
Scale runs 50% to 80%. Rows with fewer than 30 flights show a dash.
The 8pm–5am window is where this operation falls apart: 57.3% on time, against 75.0% 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 492 flights scheduled in it.
Across the year
PSA on CLT to GSP through the year
September is the best month on the calendar at 84.1% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. August was the busiest month here, with 147 flights.
Across the week, Tuesday is the strongest day at 75.0% on time and Sunday the weakest at 55.6%, a spread of 19 points.
Arrival by arrival
How late PSA on CLT to GSP runs when it is late
The 381 late arrivals split 111 under half an hour, 107 between 30 and 60 minutes, and 163 an hour or more.
- 15+ min early202 flights18.6%
- Within 15 min501 flights46.2%
- 15–29 min late111 flights10.2%
- 30–59 min late107 flights9.9%
- 1–2 hours late90 flights8.3%
- 2+ hours late73 flights6.7%
Scale runs 0% to 100%.
Share of 1,084 completed flights by arrival against schedule.
Time lost at the gate mostly stays lost. Of 330 departures that left 15 minutes late or more, only 34 made it up before arrival. In the other direction, 85 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at GSP.
The worst days
Worst days for PSA on CLT to GSP
The latest arrival of the period was on 7 December 2025, 15 hours 33 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. On three of the five worst days the largest share was filed as carrier-caused (crew, maintenance, fuelling, baggage).
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 December 2025 | 15 hours 33 minutes | Late-arriving aircraft |
| 18 December 2025 | 9 hours 48 minutes | Carrier |
| 3 March 2026 | 9 hours 37 minutes | Carrier |
| 13 July 2026 | 9 hours 9 minutes | Late-arriving aircraft |
| 9 June 2026 | 9 hours 6 minutes | Carrier |
Delay causes
Why PSA runs late on this route
Late-arriving aircraft accounts for 49% of the 32,000 delay minutes carriers reported here, and the remaining four split what is left.
- 49%Late-arriving aircraft
- 28%Carrier
- 14%National Airspace System
- 10%Extreme weather
49% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 32,000 reported delay minutes here, that single category outweighs weather by 5 to one. The split is drawn from 31,614 reported delay minutes.
Cancellations sit at 1.99% against a national 1.89%, which is ordinary. Diversions add another 0.18%.
Connections and stage length
What a delay here costs
15.0% 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.
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 11am–2pm window matters as much as it does.
The return leg is a different operation and performs like one: it runs 82.0% on time across 1,106 flights, 17 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 17 points of difference.
The sample behind these figures is 1,108 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 PSA on CLT to GSP
Put together: the calendar is the biggest lever here, not the carrier or the hour. September runs 84.1% on time and May 37.0%, a swing of 47 points. If the dates move at all, move them out of May before you think about anything else. 1,084 completed flights over 12 months sit behind that.
Related
Where to go next
- CLT to GSP, every carrier
- PSA on GSP to CLT, the return leg
- Envoy Air on CLT to GSP84.1%
- American Airlines on CLT to GSP81.1%
- PSA Airlines network-wide record
- Charlotte Douglas International (CLT) delay statistics
- Why the first flight of the morning is statistically safest
- How often a connection fails at the major US hubs
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.