Airports › Charleston (CHS) › August 2025
Airport month · August 2025
Charleston AFB/International in August 2025
BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.
In August 2025, reporting carriers scheduled 2,071 domestic departures from Charleston AFB/International (CHS). 79.5% left less than 15 minutes late and 80.3% reached their destination on time; 1.5% were cancelled.
Nationally that month, 76.8% of flights departed on time and 76.3% arrived on time, so CHS departures were 2.7 points above the national departure figure.
A year earlier, in August 2024, the airport had 2,323 departures with 73.1% leaving on time: a change of +6.4 points, with flights down 11%.
Flights arriving at CHS that month were on time 75.1% of the time (2,067 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 53%, national aviation system 22% and air carrier 20%.
- On time 80.3%
- Arrived 15+ minutes late 17.9%
- Cancelled 1.5%
- Diverted 0.3%
August 2025 against a year earlier, the airport's year and the nation
| Measure | Aug 2025 | Aug 2024 | CHS, 12 months to Jul 2026 | All reported flights, Aug 2025 |
|---|---|---|---|---|
| Departed on time | 79.5% | 73.1% | 77.8% | 76.8% |
| Arrived on time | 80.3% | 73.1% | 77.5% | 76.3% |
| Cancelled | 1.5% | 5.3% | 2.3% | 1.1% |
| Average departure delay (late minutes only) | 15.7 min | 18.4 min | 18.1 min | 17.6 min |
| Scheduled departures a day | 69 | 77 | 67 | 20,079 |
| Scheduled departures | 2,071 | 2,323 | 24,565 | 602,378 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| AA American Airlines | 449 | 22% | 77.7% | 7.9 min | 1.1% |
| DL Delta Air Lines | 402 | 19% | 84.1% | 0.3 min | 1.5% |
| WN Southwest Airlines | 292 | 14% | 82.5% | 5.8 min | 0.3% |
| YX Republic Airline | 222 | 11% | 81.1% | -0.8 min | 2.3% |
| OH PSA Airlines | 173 | 8% | 81.5% | -0.8 min | 4.6% |
| UA United Airlines | 159 | 8% | 83.0% | 3.8 min | 1.3% |
| B6 JetBlue Airways | 139 | 7% | 75.5% | 8.2 min | 0.0% |
| OO SkyWest Airlines | 62 | 3% | 71.0% | 8.8 min | 0.0% |
| NK Spirit Airlines | 60 | 3% | 78.3% | 7.3 min | 3.3% |
| MQ Envoy Air | 56 | 3% | 78.6% | 8.6 min | 3.6% |
| AS Alaska Airlines | 31 | 1% | 71.0% | 10.1 min | 0.0% |
| G4 Allegiant Air | 17 | 1% | 76.5% | 69.6 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| CHS–ATL | Charleston to Atlanta | 254 | 87.0% | -4.4 min | 2.0% |
| CHS–CLT | Charleston to Charlotte | 209 | 81.8% | 0.3 min | 1.9% |
| CHS–DCA | Charleston to Washington | 149 | 77.9% | 3.2 min | 4.0% |
| CHS–ORD | Charleston to Chicago | 139 | 79.9% | 6.1 min | 3.6% |
| CHS–PHL | Charleston to Philadelphia | 126 | 81.0% | 5.6 min | 2.4% |
| CHS–EWR | Charleston to Newark | 114 | 78.9% | 3.1 min | 4.4% |
| CHS–DTW | Charleston to Detroit | 111 | 81.1% | -2.4 min | 0.0% |
| CHS–LGA | Charleston to New York | 107 | 80.4% | 1.8 min | 0.9% |
| CHS–BWI | Charleston to Baltimore | 99 | 80.8% | 7.3 min | 1.0% |
| CHS–BOS | Charleston to Boston | 94 | 73.4% | 0.0 min | 1.1% |
| CHS–MIA | Charleston to Miami | 93 | 73.1% | 13.4 min | 0.0% |
| CHS–DFW | Charleston to Dallas/Fort Worth | 85 | 78.8% | 7.4 min | 1.2% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left CHS on time in August 2025?
79.5% of 2,071 scheduled domestic departures left less than 15 minutes late, and 80.3% reached their destination on time. The national figures that month were 76.8% and 76.3%.
How does that compare with a year earlier?
In August 2024, 73.1% of 2,323 departures left on time and 5.3% were cancelled, against 79.5% and 1.5% in August 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for August 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for CHS · methodology · corrections.