Flight Check

Best Airline: DEN to OKC

Denver to Oklahoma City — airline reliability comparison

United Airlines is the most reliable airline on the DEN to OKC route with a 82% on-time rate, compared to Southwest Airlines at 73%. Based on 559 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 Airlines82%
SkyWest Airlines79%
Frontier Airlines78%
Southwest Airlines73%

DEN to OKC Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest82%0.8%65m559
SkyWest AirlinesOO79%1.0%76m4,648
Frontier AirlinesF978%0.9%53m1,046
Southwest AirlinesWNWorst73%0.7%55m4,490

Route Overview

76%
Overall On-Time
64m
Avg Delay
0.8%
Cancel Rate
10,763
Total Flights
DEN to OKC Route DetailsReturn: OKC to DEN
DEN AirportOKC Airport

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