Airports › Greer (GSP) › April 2025
Airport month · April 2025
Greenville-Spartanburg International in April 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 April 2025, reporting carriers scheduled 1,144 domestic departures from Greenville-Spartanburg International (GSP). 83.2% left less than 15 minutes late and 83.4% reached their destination on time; 0.8% were cancelled.
Nationally that month, 80.6% of flights departed on time and 79.5% arrived on time, so GSP departures were 2.6 points above the national departure figure.
A year earlier, in April 2024, the airport had 1,326 departures with 86.8% leaving on time: a change of −3.6 points, with flights down 14%.
Flights arriving at GSP that month were on time 77.4% of the time (1,145 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 50%, air carrier 23% and national aviation system 22%.
- On time 83.4%
- Arrived 15+ minutes late 15.7%
- Cancelled 0.8%
- Diverted 0.1%
April 2025 against a year earlier, the airport's year and the nation
| Measure | Apr 2025 | Apr 2024 | GSP, 12 months to Jul 2026 | All reported flights, Apr 2025 |
|---|---|---|---|---|
| Departed on time | 83.2% | 86.8% | 79.0% | 80.6% |
| Arrived on time | 83.4% | 84.5% | 78.9% | 79.5% |
| Cancelled | 0.8% | 0.5% | 2.7% | 0.8% |
| Average departure delay (late minutes only) | 12.9 min | 8.9 min | 16.1 min | 14.1 min |
| Scheduled departures a day | 38 | 44 | 39 | 19,465 |
| Scheduled departures | 1,144 | 1,326 | 14,201 | 583,950 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OH PSA Airlines | 298 | 26% | 79.9% | 6.2 min | 1.0% |
| DL Delta Air Lines | 222 | 19% | 93.2% | -9.6 min | 0.5% |
| YX Republic Airline | 141 | 12% | 85.8% | 6.2 min | 0.0% |
| MQ Envoy Air | 123 | 11% | 78.0% | 13.6 min | 1.6% |
| WN Southwest Airlines | 121 | 11% | 81.8% | 3.5 min | 0.0% |
| AA American Airlines | 93 | 8% | 82.8% | 3.3 min | 2.2% |
| UA United Airlines | 61 | 5% | 88.5% | 3.2 min | 0.0% |
| OO SkyWest Airlines | 53 | 5% | 81.1% | 1.6 min | 1.9% |
| G4 Allegiant Air | 32 | 3% | 59.4% | 28.8 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| GSP–CLT | Greer to Charlotte | 241 | 80.9% | 7.7 min | 0.8% |
| GSP–ATL | Greer to Atlanta | 212 | 92.0% | -8.7 min | 0.5% |
| GSP–DFW | Greer to Dallas/Fort Worth | 93 | 75.3% | 11.8 min | 1.1% |
| GSP–DCA | Greer to Washington | 86 | 77.9% | 5.5 min | 2.3% |
| GSP–ORD | Greer to Chicago | 86 | 82.6% | 2.9 min | 2.3% |
| GSP–LGA | Greer to New York | 82 | 86.6% | 6.2 min | 0.0% |
| GSP–BWI | Greer to Baltimore | 60 | 83.3% | -1.2 min | 0.0% |
| GSP–EWR | Greer to Newark | 60 | 85.0% | 6.0 min | 0.0% |
| GSP–PHL | Greer to Philadelphia | 31 | 93.5% | -8.3 min | 0.0% |
| GSP–BNA | Greer to Nashville | 30 | 80.0% | 3.6 min | 0.0% |
| GSP–DEN | Greer to Denver | 30 | 80.0% | 2.9 min | 3.3% |
| GSP–IAH | Greer to Houston | 30 | 83.3% | 1.0 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left GSP on time in April 2025?
83.2% of 1,144 scheduled domestic departures left less than 15 minutes late, and 83.4% reached their destination on time. The national figures that month were 80.6% and 79.5%.
How does that compare with a year earlier?
In April 2024, 86.8% of 1,326 departures left on time and 0.5% were cancelled, against 83.2% and 0.8% in April 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for April 2025; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for GSP · methodology · corrections.