Flight Check

Best Airline: DEN to BIL

Denver to Billings — airline reliability comparison

SkyWest Airlines is the most reliable airline on the DEN to BIL route with a 81% on-time rate, compared to United Airlines at 75%. Based on 2,584 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 Airlines81%
United Airlines75%

DEN to BIL Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest81%1.6%58m2,584
United AirlinesUAWorst75%0.5%62m2,617

Route Overview

78%
Overall On-Time
62m
Avg Delay
0.9%
Cancel Rate
5,211
Total Flights
DEN to BIL Route DetailsReturn: BIL to DEN
DEN AirportBIL Airport

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