Airports › Greer (GSP) › March 2025
Airport month · March 2025
Greenville-Spartanburg International in March 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 March 2025, reporting carriers scheduled 1,213 domestic departures from Greenville-Spartanburg International (GSP). 81.1% left less than 15 minutes late and 79.8% reached their destination on time; 1.7% were cancelled.
Nationally that month, 79.9% of flights departed on time and 79.3% arrived on time, so GSP departures were 1.2 points above the national departure figure.
A year earlier, in March 2024, the airport had 1,270 departures with 88.3% leaving on time: a change of −7.2 points, with flights down 4%.
Flights arriving at GSP that month were on time 75.2% of the time (1,214 scheduled arrivals).
Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 51%, air carrier 33% and national aviation system 12%.
- On time 79.8%
- Arrived 15+ minutes late 18.1%
- Cancelled 1.7%
- Diverted 0.4%
March 2025 against a year earlier, the airport's year and the nation
| Measure | Mar 2025 | Mar 2024 | GSP, 12 months to Jul 2026 | All reported flights, Mar 2025 |
|---|---|---|---|---|
| Departed on time | 81.1% | 88.3% | 79.0% | 79.9% |
| Arrived on time | 79.8% | 86.9% | 78.9% | 79.3% |
| Cancelled | 1.7% | 0.3% | 2.7% | 1.2% |
| Average departure delay (late minutes only) | 16.8 min | 8.8 min | 16.1 min | 14.9 min |
| Scheduled departures a day | 40 | 42 | 39 | 20,029 |
| Scheduled departures | 1,213 | 1,270 | 14,201 | 600,872 |
Airlines that month
| Reporting carrier | Flights | Share | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| OH PSA Airlines | 351 | 29% | 72.1% | 18.8 min | 3.4% |
| DL Delta Air Lines | 224 | 18% | 92.0% | -7.6 min | 0.9% |
| MQ Envoy Air | 153 | 13% | 78.4% | 1.8 min | 1.3% |
| WN Southwest Airlines | 127 | 10% | 88.2% | -4.0 min | 0.0% |
| AA American Airlines | 119 | 10% | 77.3% | 14.1 min | 0.0% |
| YX Republic Airline | 110 | 9% | 78.2% | 8.9 min | 3.6% |
| OO SkyWest Airlines | 60 | 5% | 90.0% | 1.3 min | 0.0% |
| G4 Allegiant Air | 36 | 3% | 47.2% | 34.3 min | 2.8% |
| UA United Airlines | 33 | 3% | 84.8% | 41.7 min | 0.0% |
Busiest routes that month
| Route | Cities | Flights | On time | Avg arrival delay | Cancelled |
|---|---|---|---|---|---|
| GSP–CLT | Greer to Charlotte | 275 | 76.0% | 13.5 min | 1.8% |
| GSP–ATL | Greer to Atlanta | 255 | 92.2% | -8.6 min | 0.8% |
| GSP–DFW | Greer to Dallas/Fort Worth | 120 | 73.3% | 10.3 min | 0.8% |
| GSP–ORD | Greer to Chicago | 110 | 75.5% | 4.0 min | 1.8% |
| GSP–DCA | Greer to Washington | 88 | 60.2% | 22.0 min | 6.8% |
| GSP–LGA | Greer to New York | 83 | 80.7% | 11.5 min | 3.6% |
| GSP–BWI | Greer to Baltimore | 60 | 85.0% | -0.3 min | 0.0% |
| GSP–PHL | Greer to Philadelphia | 45 | 80.0% | 40.7 min | 2.2% |
| GSP–MIA | Greer to Miami | 40 | 95.0% | -5.9 min | 0.0% |
| GSP–BNA | Greer to Nashville | 31 | 90.3% | 1.5 min | 0.0% |
| GSP–DEN | Greer to Denver | 31 | 93.5% | -5.4 min | 0.0% |
| GSP–IAH | Greer to Houston | 31 | 87.1% | 44.0 min | 0.0% |
By scheduled departure hour
Delay causes
Questions and answers
How many flights left GSP on time in March 2025?
81.1% of 1,213 scheduled domestic departures left less than 15 minutes late, and 79.8% reached their destination on time. The national figures that month were 79.9% and 79.3%.
How does that compare with a year earlier?
In March 2024, 88.3% of 1,270 departures left on time and 0.3% were cancelled, against 81.1% and 1.7% in March 2025.
Provenance
Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 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.