Flight Check

Best Airline: FSD to DEN

Sioux Falls to Denver — airline reliability comparison

SkyWest Airlines is the most reliable airline on the FSD to DEN route with a 84% on-time rate, compared to United Airlines at 74%. Based on 3,860 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

SkyWest Airlines84%
Frontier Airlines74%
United Airlines74%

FSD to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest84%1.2%87m3,860
Frontier AirlinesF974%1.1%72m642
United AirlinesUAWorst74%1.4%61m1,554

Route Overview

80%
Overall On-Time
79m
Avg Delay
1.3%
Cancel Rate
6,095
Total Flights
FSD to DEN Route DetailsReturn: DEN to FSD
FSD AirportDEN Airport

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