22 destinations have scheduled flights from TYS, about 299 departures a week. Weekly frequencies come from airline schedules and observed departures, not live status.
| Destination | Flights per week | Airlines | Typical duration |
|---|---|---|---|
| Charlotte Douglas International Airport (CLT) | 53 | American Airlines | — |
| Chicago O'Hare International Airport (ORD) | 37 | Albatross Airlines, American Airlines | — |
| Dallas Fort Worth International Airport (DFW) | 32 | American Airlines | — |
| Hartsfield Jackson Atlanta International Airport (ATL) | 31 | Delta Air Lines | — |
| Ronald Reagan Washington National Airport (DCA) | 18 | American Airlines | — |
| Denver International Airport (DEN) | 16 | Albatross Airlines, Frontier Airlines, Inc. | — |
| Washington Dulles International Airport (IAD) | 14 | Albatross Airlines | — |
| Philadelphia International Airport (PHL) | 13 | American Airlines | — |
| LaGuardia Airport (LGA) | 12 | Delta Air Lines | — |
| Detroit Metropolitan Wayne County Airport (DTW) | 11 | Delta Air Lines | — |
| George Bush Intercontinental Airport (IAH) | 11 | Albatross Airlines | — |
| Orlando International Airport (MCO) | 8 | Southwest Airlines Co., Allegiant Air LLC | — |
| Louisville Muhammad Ali International Airport (SDF) | 8 | UPS Airlines, Four Island Air | — |
| Nashville International Airport (BNA) | 6 | Southwest Airlines Co. | — |
| Miami International Airport (MIA) | 6 | Envoy Air Inc. | — |
| Dallas Love Field (DAL) | 5 | Southwest Airlines Co. | — |
| Frederick W. Smith International Airport (MEM) | 5 | Four Island Air | — |
| Fort Lauderdale Hollywood International Airport (FLL) | 3 | Allegiant Air LLC | — |
| Indianapolis International Airport (IND) | 3 | Four Island Air | — |
| Orlando Sanford International Airport (SFB) | 3 | Allegiant Air LLC | — |
| Harry Reid International Airport (LAS) | 2 | Allegiant Air LLC | — |
| St. Petersburg Clearwater International Airport (PIE) | 2 | Allegiant Air LLC | — |
GET /routes returns each scheduled flight from TYS: airline, flight number, departure and arrival time, duration, days of operation and aircraft type.
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