Knoxville (TYS) to Saint Petersburg (PIE) flights
One airline flies nonstop from Knoxville (TYS) to Saint Petersburg (PIE): Allegiant Air. The two airports are 551 miles (886 km) apart. There are also 5 ways to fly it with one stop, through Nashville, Memphis and Key West and more.
Airlines flying nonstop from TYS to PIE
- Allegiant AirNot in an alliance

TYS to PIE with one stop
5 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Nashville (BNA)Southwest Airlines, then Allegiant Air


- Via Memphis (MEM)Allegiant Air the whole way


- Via Key West (EYW)Allegiant Air the whole way


- Via Bentonville (XNA)Delta Air Lines, then Allegiant Air


- Via Philadelphia (PHL)Allegiant Air the whole way



TYS to PIE: common questions
Which airlines fly nonstop from TYS to PIE?
Allegiant Air flies nonstop from Knoxville (TYS) to Saint Petersburg (PIE).
How far is Knoxville from Saint Petersburg by plane?
Knoxville (TYS) and Saint Petersburg (PIE) are 551 miles (886 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does TYS to PIE cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for TYS to PIE with taxes and fees.
Where can I connect between Knoxville and Saint Petersburg?
The most direct connections are through Nashville (BNA), Memphis (MEM), Key West (EYW), Bentonville (XNA) and Philadelphia (PHL). On 3 of them the same airline flies both flights, for example Allegiant Air through Memphis.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.