Flight Check

Best Airline: EWR to STL

Newark to St. Louis — airline reliability comparison

Republic Airways is the most reliable airline on the EWR to STL route with a 88% on-time rate, compared to United Airlines at 74%. Based on 2,225 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 Airways88%
United Airlines74%

EWR to STL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Republic AirwaysYXBest88%4.4%58m2,225
United AirlinesUAWorst74%1.6%80m1,110

Route Overview

82%
Overall On-Time
74m
Avg Delay
3.7%
Cancel Rate
3,355
Total Flights
EWR to STL Route DetailsReturn: STL to EWR
EWR AirportSTL Airport

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