Flight Check

Best Airline: STL to EWR

St. Louis to Newark — airline reliability comparison

Republic Airways is the most reliable airline on the STL to EWR route with a 84% on-time rate, compared to United Airlines at 74%. Based on 2,222 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%
United Airlines74%

STL to EWR Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest84%4.4%87m2,222
United AirlinesUAWorst74%2.5%82m1,097

Route Overview

81%
Overall On-Time
86m
Avg Delay
3.9%
Cancel Rate
3,348
Total Flights
STL to EWR Route DetailsReturn: EWR to STL
STL AirportEWR Airport

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