State · SC · 2020–2025 BTS data
South Carolina
According to PlainFlights' state traffic ranking (BTS On-Time Performance total flights), South Carolina ranks #27 of 53 US states by total flight operations (most flights = #1).
Data updated 2026-06-13
- 82.4%
- On-time
- +3.4 pts
- vs US avg
- 76 min
- Delay when late
- 1.27%
- Cancelled
- #27 of 53
- Corpus placement
State reliability verdict
According to U.S. DOT BTS data, flights in South Carolina run at 82.4% on-time (typical tercile) across 699,538 operations at 6 airports, 3.4 pts above the 79% U.S. average. Among tracked airports, CAE leads locally at 84.3% on-time.
- 82.4%
- statewide on-time
- +3.4 pts
- vs US average
- 6
- airports tracked
- 1.27%
- cancellation rate
On-time means arrived less than 15 minutes after schedule. Figures are historical BTS averages, not a guarantee for any single flight.
South Carolina vs all states by total flight operations
Where this state's BTS On-Time Performance flight count sits among every state with tracked operations (traffic density, not on-time quality)
699,538 Top 51% more flights than 49% of 53 states
States, banded by total BTS-tracked flights
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source BTS On-Time Performance · 2026-06-13
Airports in South Carolina
South Carolina airports ranked by on-time rate
6 BTS-tracked airports, led by CAE at 84.3%
On-time rate by airport
- FLO
Florence, SC: 92.5% on-time, 226 flights
93 %
- CAE
Columbia, SC: 84.3% on-time, 67,973 flights
84 %
- GSP
Greer, SC: 83.5% on-time, 155,526 flights
84 %
- HHH
Hilton Head, SC: 83.5% on-time, 27,234 flights
84 %
- MYR
Myrtle Beach, SC: 82.1% on-time, 171,781 flights
82 %
- CHS
Charleston, SC: 81.4% on-time, 276,798 flights
81 %
What this shows Airports here range from 81.4% to 92.5% on-time.
| Code | Airport | City | Flights | On-Time | Avg Delay (when late) |
|---|---|---|---|---|---|
| CHS | Charleston, SC | Charleston | 276,798 | 81.4% | 74.9 min |
| MYR | Myrtle Beach, SC | Myrtle Beach | 171,781 | 82.1% | 76.5 min |
| GSP | Greer, SC | Greer | 155,526 | 83.5% | 77.4 min |
| CAE | Columbia, SC | Columbia | 67,973 | 84.3% | 79.1 min |
| HHH | Hilton Head, SC | Hilton Head | 27,234 | 83.5% | 78.7 min |
| FLO | Florence, SC | Florence | 226 | 92.5% | 83.2 min |
South Carolina airport-inventory reading
The standout signal in South Carolina is airport inventory: 6 BTS-tracked airports across 699,538 flights. Statewide on-time is 82.4% (3.4 pts above the 79% U.S. average) with a 1.27% cancellation rate.
Mid-volume books still show a clear airport fingerprint: Charleston, SC (CHS) handles 276,798 flights at 81.4% on-time.
On the recent 24-month tape, delay pressure is lightest in Oct 2024 and heaviest in Jul 2025. On reliability, Columbia, SC (CAE) posts the highest on-time rate at 84.3% across 67,973 flights. On-time performance explained.
States With a Similar On-Time Rate
Other U.S. states whose statewide on-time rate is closest to South Carolina's 82.4%.
Using South Carolina's data
South Carolina's statewide on-time book is mid-pack; airport choice and month move more than the headline rate.
- Columbia, SC (CAE) is the most reliable airport in South Carolina among those with meaningful traffic. CAE profile
- Charleston, SC handles the most traffic in the state; its performance weighs heavily on the state average. CHS profile
- See how South Carolina compares with every other state that has BTS-tracked airports. All states
State averages are flight-weighted across all reporting airports in the state; a single busy airport can dominate the figure.
Read our methodology - how this data is sourced, computed, and verified.
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025