Flight Check

Best Airline: ONT to DFW

Ontario to Dallas — airline reliability comparison

American Airlines is the most reliable airline on the ONT to DFW route with a 82% on-time rate, compared to Frontier Airlines at 73%. Based on 7,108 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

American Airlines82%
Frontier Airlines73%

ONT to DFW Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
American AirlinesAABest82%2.1%105m7,108
Frontier AirlinesF9Worst73%3.0%79m1,308

Route Overview

80%
Overall On-Time
101m
Avg Delay
2.2%
Cancel Rate
8,416
Total Flights
ONT to DFW Route DetailsReturn: DFW to ONT
ONT AirportDFW Airport

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