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Route Reliability

Denver → Charleston

DEN–CHS · 1,449 miles · Denver International Airport to Charleston International Airport

83
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
7 min
Average arrival delay
0.3%
Cancelled
646
Flights in the data

Data through May 2026.

Who flies it best

Ranked by on-time arrivals. Historical results, not predictions.

  1. 1.United Airlines81%438 flights
  2. 2.Southwest Airlines70%208 flights

What the data says

Morning flights do better here.

DEN–CHS flights departing between 9 AM–12 PM arrived on time 81% of the time, versus 69% between 12–3 PM.

Sunday scaries are real for this one.

DEN–CHS flights arrived on time 86% of the time on Tuesdays. On Sundays: 74%.

United Airlines runs this route best.

United Airlines arrived on time 81% of the time on this route; Southwest Airlines managed 70%.

It basically never cancels.

Out of 646 scheduled flights, only 0.3% were cancelled.

Flights on this route

The breakdown

On-time by weekday
  • Mon81%(99 flights)
  • Tue86%(83 flights)
  • Wed74%(82 flights)
  • Thu74%(95 flights)
  • Fri77%(98 flights)
  • Sat80%(83 flights)
  • Sun74%(102 flights)
On-time by departure window
  • 9 AM–12 PM81%(432 flights)
  • 12–3 PM69%(45 flights)
  • 3–6 PM72%(159 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
73%
May

Jun 70% → May 73% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202570%60
July 202565%60
August 202570%50
September 202587%47
October 202567%52
November 202585%48
December 202585%46
January 202686%56
February 202682%55
March 202684%61
April 202680%59
May 202673%48

Keep nerding

Based on 646 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.