Knoxville (TYS) to Philadelphia (PHL) flights
2 airlines fly nonstop from Knoxville (TYS) to Philadelphia (PHL): Allegiant Air and American Airlines. The two airports are 554 miles (891 km) apart. American Airlines is in oneworld. There are also 17 ways to fly it with one stop, through Dulles, Baltimore and Washington and more.
Airlines flying nonstop from TYS to PHL
- Allegiant AirNot in an alliance

- American Airlinesoneworld · bookable with 9 programsWho books it

Book TYS to PHL with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Alaska Atmos RewardsBooks American Airlines
- American AAdvantageBooks American Airlines
- British Airways ClubBooks American Airlines
- Cathay Pacific Asia MilesBooks American Airlines
- Finnair PlusBooks American Airlines
- Iberia ClubBooks American Airlines
- JAL Mileage BankBooks American Airlines
- Qantas Frequent FlyerBooks American Airlines
- Qatar Airways Privilege ClubBooks American Airlines
TYS to PHL with one stop
17 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Dulles (IAD)United Airlines the whole way



- Via Baltimore (BWI)Southwest Airlines the whole way


- Via Washington (DCA)American Airlines the whole way



- Via Charlotte (CLT)American Airlines the whole way



- Via Atlanta (ATL)Delta Air Lines the whole way




- Via Nashville (BNA)Southwest Airlines the whole way




- Via Detroit (DTW)Delta Air Lines the whole way




- Via Birmingham (BHM)United Airlines, then American Airlines


- Via Boston (BOS)Allegiant Air, then American Airlines, JetBlue Airways and 1 more




- Via Chicago (MDW)Allegiant Air, then Southwest Airlines


- Via Jacksonville (JAX)Allegiant Air, then American Airlines and Frontier Airlines



- Via Chicago (ORD)American Airlines and United Airlines the whole way





- Via Memphis (MEM)Allegiant Air, then American Airlines


- Via Fort Walton Beach (VPS)Allegiant Air, then American Airlines


- Via Orlando (MCO)Southwest Airlines the whole way





TYS to PHL: common questions
Which airlines fly nonstop from TYS to PHL?
Allegiant Air and American Airlines (oneworld) fly nonstop from Knoxville (TYS) to Philadelphia (PHL).
How far is Knoxville from Philadelphia by plane?
Knoxville (TYS) and Philadelphia (PHL) are 554 miles (891 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book TYS to PHL award flights?
9 programs can book at least one of the nonstop airlines: Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, Finnair Plus, Iberia Club, JAL Mileage Bank, Qantas Frequent Flyer and 1 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does TYS to PHL 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 PHL with taxes and fees.
Where can I connect between Knoxville and Philadelphia?
The most direct connections are through Dulles (IAD), Baltimore (BWI), Washington (DCA), Charlotte (CLT) and Atlanta (ATL). On 11 of them the same airline flies both flights, for example United Airlines through Dulles.
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.