Flight Check

Best Airline: PWM to DEN

Portland to Denver — airline reliability comparison

United Airlines is the most reliable airline on the PWM to DEN route with a 73% on-time rate. Based on 528 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 Airlines73%

PWM to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest73%0.5%84m528

Route Overview

73%
Overall On-Time
83m
Avg Delay
0.6%
Cancel Rate
528
Total Flights
PWM to DEN Route DetailsReturn: DEN to PWM
PWM AirportDEN Airport

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