Knoxville (TYS) to Houston (HOU) flights
One airline flies nonstop from Knoxville (TYS) to Houston (HOU): Allegiant Air. The two airports are 781 miles (1,257 km) apart. There are also 19 ways to fly it with one stop, through Birmingham, Nashville and Memphis and more.
Airlines flying nonstop from TYS to HOU
- Allegiant AirNot in an alliance
TYS to HOU with one stop
19 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Birmingham (BHM)United Airlines, then Southwest Airlines
- Via Nashville (BNA)Southwest Airlines the whole way
- Via Memphis (MEM)Allegiant Air, then Southwest Airlines
- Via New Orleans (MSY)Southwest Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Fort Walton Beach (VPS)Allegiant Air, then Southwest Airlines
- Via Dallas (DAL)Southwest Airlines the whole way
- Via Dallas (DFW)American Airlines the whole way
- Via Austin (AUS)Southwest Airlines the whole way+1
- Via Charlotte (CLT)American Airlines, then Southwest Airlines
- Via Jacksonville (JAX)Allegiant Air, then Southwest Airlines
- Via Tampa (TPA)Southwest Airlines the whole way
- Via Sarasota (SRQ)Allegiant Air, then Southwest Airlines
- Via Orlando (MCO)Southwest Airlines the whole way
- Via Chicago (MDW)Allegiant Air, then Southwest Airlines
TYS to HOU: common questions
Which airlines fly nonstop from TYS to HOU?
Allegiant Air flies nonstop from Knoxville (TYS) to Houston (HOU).
How far is Knoxville from Houston by plane?
Knoxville (TYS) and Houston (HOU) are 781 miles (1,257 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
How many miles does TYS to HOU 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 HOU with taxes and fees.
Where can I connect between Knoxville and Houston?
The most direct connections are through Birmingham (BHM), Nashville (BNA), Memphis (MEM), New Orleans (MSY) and Atlanta (ATL). On 9 of them the same airline flies both flights, for example Southwest Airlines through Nashville.
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.