Flight Check

Best Airline: DEN to CHS

Denver to Charleston — airline reliability comparison

United Airlines is the most reliable airline on the DEN to CHS route with a 78% on-time rate, compared to Southwest Airlines at 72%. Based on 1,378 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 Airlines78%
Southwest Airlines72%

DEN to CHS Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest78%0.6%55m1,378
Southwest AirlinesWNWorst72%0.5%47m1,085

Route Overview

75%
Overall On-Time
52m
Avg Delay
0.6%
Cancel Rate
2,467
Total Flights
DEN to CHS Route DetailsReturn: CHS to DEN
DEN AirportCHS Airport

Flying out of DEN? 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.