St. Petersburg (PIE) → Knoxville (TYS)
A reference for the St Petersburg Clearwater International Airport to McGhee Tyson Airport route. You'll find the operators on file, the great-circle geometry, the connecting options if no nonstop fits your dates, and a short profile of each endpoint airport.
The flight from St. Petersburg (PIE) to Knoxville (TYS) covers a great-circle distance of roughly 887 km (551 miles). Aircraft leave St Petersburg Clearwater International Airport on an initial north heading. As US domestic sectors go, this one sits in the medium-haul bracket: long enough that most carriers run it as its own dedicated rotation, but short enough to fit inside a single crew duty period.
Allegiant Air is the only carrier filing a scheduled PIE to TYS service in the dataset. Single-operator routes like this usually reflect a focus-city or hub-spoke relationship, or a market that's big enough to support one dedicated daily but not big enough to attract a second entrant yet.
Operators on the PIE → TYS direction
Carriers with at least one scheduled rotation on this sector in the OpenFlights dataset, ranked by the number of code-shared filings.
| IATA | Airline | Country | Callsign |
|---|---|---|---|
| G4 | Allegiant Air | United States | ALLEGIANT |
A medium-haul sector of this length is an operational sweet spot. Block time lands near 1h 47m, well inside a single crew duty for most carriers, and modern narrow-bodies (A320neo, 737 MAX, A321) can fly it without payload restrictions. Premium-cabin product on this kind of sector is usually a recliner seat rather than a fully flat bed.
No obvious one-stop hubs appear on both ends of the network for this pair. Usually that means either the destination is a small spoke airport, or the only realistic itineraries route through a global super-hub well outside the region. The sections below point to the strongest candidates on each side.
Both endpoints sit inside the United States, so this counts as a domestic sector for fare-bucket, baggage, and carry-on purposes. Reservations on US carriers usually pick up the standard domestic checked-bag fee unless you hold elite status, and TSA PreCheck eligibility applies at the departure airport. See the United States routes index for other domestic pairs in the same network.
On the day of operation, the PIE to TYS direction lifts off heading north, then the great-circle track curves to compensate for the Earth's rotation. The return TYS to PIE sector heads south out of the gate, with 1 operators on file for the inbound side. Combine the two operator lists for a full picture of the city pair's competitive landscape.
BTS domestic traffic (PIE → TYS, 2025)
Real 2025 passenger, freight, and departure-frequency totals for this exact non-stop segment, from the U.S. Bureau of Transportation Statistics T-100 Domestic Segment (All Carriers) database — not an OpenFlights field. Scheduled-passenger service (BTS service class F) only; all-cargo and non-scheduled service are excluded.
| Carrier code | Carrier (BTS record) | Passengers | Departures performed |
|---|---|---|---|
| G4 | Allegiant Air | 74,869 | 521 |
Aircraft types flown on this segment in 2025, by departures performed: Airbus Industrie A320-100/200 (388 departures), Boeing 737 Max 8-200 (92 departures), Airbus Industrie A319 (21 departures), Boeing B737 Max 800 (20 departures). Mail carried: 0 lb. Departures scheduled vs. performed: 521 scheduled, 521 performed.
Data as of: full calendar year 2025 (all 12 months) · Source: BTS T-100 Domestic Segment (All Carriers), U.S. DOT Bureau of Transportation Statistics (public domain, U.S. government work). Carrier names and aircraft-type descriptions are BTS's own record values, not this site's. Figures reflect carrier-filed BTS reports, not real-time bookings. See the BTS domestic traffic hub and methodology for match coverage and corrections path.
Endpoints
Other routes from St. Petersburg (PIE)
Other destinations served from the same origin. Handy for combining trips or for finding an alternate first leg.
Other routes into Knoxville (TYS)
Other origins that already file scheduled service into the destination airport.
Reading this route page
The operator list reflects scheduled-route filings in the OpenFlights dataset, not real-time availability. A carrier appearing here publishes a scheduled service on this sector. It isn't a live timetable, and the actual flight numbers, frequencies, and aircraft types shift season to season. For booking and current schedules, cross-reference the airline page above with the carrier's own website.
Distance here is the great-circle arc between the two airports' published coordinates. Real flight tracks wander off that line because of wind, ATC routings, oceanic crossings, and political airspace constraints. Block time is an estimate covering ground taxi, climb, cruise at typical jet speeds, and descent. Real block times shift with aircraft type, weather, and traffic, so treat the stat-strip number as a planning indicator rather than a published flight time.