Flight Check

Best Airline: TYS to PHL

Knoxville to Philadelphia — airline reliability comparison

Republic Airways is the most reliable airline on the TYS to PHL route with a 96% on-time rate, compared to Frontier Airlines at 81%. Based on 25 flights tracked.

This route involves weather-prone airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Republic Airways96%
PSA Airlines88%
Frontier Airlines81%

TYS to PHL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest96%0.0%41m25
PSA AirlinesOH88%2.1%81m1,418
Frontier AirlinesF9Worst81%0.0%28m26

Route Overview

86%
Overall On-Time
80m
Avg Delay
1.9%
Cancel Rate
1,509
Total Flights
TYS to PHL Route DetailsReturn: PHL to TYS
TYS AirportPHL Airport

Flying out of TYS? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

Free. No account needed.

Data last updated October 2026. Source: Bureau of Transportation Statistics.