Flight Check

Best Airline: OAK to DEN

Oakland to Denver — airline reliability comparison

Frontier Airlines is the most reliable airline on the OAK to DEN route with a 83% on-time rate, compared to Southwest Airlines at 79%. Based on 37 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

Frontier Airlines83%
Southwest Airlines79%

OAK to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Frontier AirlinesF9Best83%0.0%53m37
Southwest AirlinesWNWorst79%0.5%49m6,464

Route Overview

79%
Overall On-Time
49m
Avg Delay
0.5%
Cancel Rate
6,505
Total Flights
OAK to DEN Route DetailsReturn: DEN to OAK
OAK AirportDEN Airport

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