Flight Check

Best Airline: ORD to TYS

Chicago to Knoxville — airline reliability comparison

Republic Airways is the most reliable airline on the ORD to TYS route with a 84% on-time rate, compared to PSA Airlines at 61%. Based on 503 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Republic Airways84%
SkyWest Airlines76%
74%
United Airlines63%
PSA Airlines61%

ORD to TYS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest84%1.9%48m503
SkyWest AirlinesOO76%1.3%68m3,616
MQ74%1.1%46m760
United AirlinesUA63%1.6%79m605
PSA AirlinesOHWorst61%6.2%136m912

Route Overview

73%
Overall On-Time
78m
Avg Delay
2%
Cancel Rate
6,489
Total Flights
ORD to TYS Route DetailsReturn: TYS to ORD
ORD AirportTYS Airport

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