Flight Check

Best Airline: DFW to ONT

Dallas to Ontario — airline reliability comparison

Frontier Airlines is the most reliable airline on the DFW to ONT route with a 73% on-time rate, compared to American Airlines at 71%. Based on 1,306 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

Frontier Airlines73%
American Airlines71%

DFW to ONT Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Frontier AirlinesF9Best73%2.9%66m1,306
American AirlinesAAWorst71%2.0%69m7,109

Route Overview

70%
Overall On-Time
71m
Avg Delay
2.1%
Cancel Rate
8,415
Total Flights
DFW to ONT Route DetailsReturn: ONT to DFW
DFW AirportONT Airport

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