Flight Check

Best Airline: BDL to DEN

Hartford to Denver — airline reliability comparison

United Airlines is the most reliable airline on the BDL to DEN route with a 86% on-time rate, compared to Frontier Airlines at 67%. Based on 2,150 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 Airlines86%
Southwest Airlines77%
Frontier Airlines67%

BDL to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest86%1.5%65m2,150
Southwest AirlinesWN77%0.7%49m682
Frontier AirlinesF9Worst67%4.2%53m64

Route Overview

83%
Overall On-Time
61m
Avg Delay
1.1%
Cancel Rate
2,940
Total Flights
BDL to DEN Route DetailsReturn: DEN to BDL
BDL AirportDEN Airport

Flying out of BDL? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

Free. No account needed.

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