26 destinations have scheduled flights from GSP, about 302 departures a week. Weekly frequencies come from airline schedules and observed departures, not live status.
| Destination | Flights per week | Airlines | Typical duration |
|---|---|---|---|
| Charlotte Douglas (CLT) | 56 | American Airlines, Envoy Air Inc. | — |
| Hartsfield-jackson Atlanta International (ATL) | 31 | Delta Air Lines | — |
| Chicago O'hare International (ORD) | 31 | Envoy Air Inc., United Airlines, American Airlines | — |
| New York (LGA) | 29 | Delta Air Lines, American Airlines | — |
| Ronald Reagan Washington National Airport (DCA) | 21 | American Airlines | — |
| Dallas/Fort Worth International (DFW) | 16 | Envoy Air Inc., American Airlines | — |
| Baltimore/Washington International Thurgood Marshall (BWI) | 14 | Southwest Airlines Co. | — |
| Miami International Airport (MIA) | 14 | Envoy Air Inc. | — |
| Nashville International (BNA) | 12 | Southwest Airlines Co. | — |
| Detroit Metropolitan Wayne County (DTW) | 11 | Delta Air Lines | — |
| Newark Liberty International (EWR) | 10 | United Airlines | — |
| Denver International (DEN) | 7 | United Airlines | — |
| Washington Dulles International (IAD) | 7 | United Airlines | — |
| Philadelphia International (PHL) | 7 | American Airlines | — |
| George Bush Intercontinental (IAH) | 6 | Mesa Airlines, Inc. | — |
| Memphis (MEM) | 5 | Federal Express | — |
| New Haven (HVN) | 4 | Xtra Airways | — |
| Louisville International (Standiford Field) (SDF) | 4 | UPS Airlines | — |
| Tampa International (TPA) | 4 | Mexicana | — |
| Bradley International (BDL) | 2 | Mexicana | — |
| Liege Airport (LGG) | 2 | Atlas Air | — |
| Orlando International (MCO) | 2 | Mexicana | — |
| St. Petersburg-Clearwater International (PIE) | 2 | Allegiant Air LLC | — |
| Providence (PVD) | 2 | Mexicana | — |
| Fort Myers (RSW) | 2 | Mexicana | — |
| Orlando Sanford International (SFB) | 1 | Allegiant Air LLC | — |
GET /routes returns each scheduled flight from GSP: airline, flight number, departure and arrival time, duration, days of operation and aircraft type.
https://www.goflightlabs.com/routes?access_key=YOUR_ACCESS_KEY&dep_iata=GSP
That URL still says YOUR_ACCESS_KEY.
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