Flight Check

Best Airline: DEN to SNA

Denver to Santa Ana — airline reliability comparison

United Airlines is the most reliable airline on the DEN to SNA route with a 84% on-time rate, compared to Southwest Airlines at 76%. Based on 6,274 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

United Airlines84%
Frontier Airlines84%
Southwest Airlines76%

DEN to SNA Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest84%0.5%54m6,274
Frontier AirlinesF984%1.0%48m1,187
Southwest AirlinesWNWorst76%0.8%45m5,750

Route Overview

80%
Overall On-Time
49m
Avg Delay
0.7%
Cancel Rate
13,211
Total Flights
DEN to SNA Route DetailsReturn: SNA to DEN
DEN AirportSNA Airport

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