Flight Check

Best Airline: DEN to OAK

Denver to Oakland — airline reliability comparison

Southwest Airlines is the most reliable airline on the DEN to OAK route with a 70% on-time rate, compared to Frontier Airlines at 65%. Based on 6,404 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

Southwest Airlines70%
Frontier Airlines65%

DEN to OAK Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Southwest AirlinesWNBest70%0.8%50m6,404
Frontier AirlinesF9Worst65%0.0%61m37

Route Overview

70%
Overall On-Time
50m
Avg Delay
0.8%
Cancel Rate
6,445
Total Flights
DEN to OAK Route DetailsReturn: OAK to DEN
DEN AirportOAK Airport

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