Route
CHS → DEN
Charleston International Airport Denver International Airport
1,449 miles
Return route DEN → CHS →
How punctual is this route?
- On-time arrivals
- 69.9%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 66 min
- Flights arriving 15+ minutes late
- Flights tracked
- 663
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 39%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 19%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sep 2025
Aug 2026
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 68.1% | 47 |
| October 2025 | 53.8% | 52 |
| November 2025 | 83.0% | 48 |
| December 2025 | 69.6% | 46 |
| January 2026 | 89.1% | 57 |
| February 2026 | 74.5% | 55 |
| March 2026 | 83.3% | 62 |
| April 2026 | 76.3% | 59 |
| May 2026 | 79.2% | 49 |
| June 2026 | 44.6% | 57 |
| July 2026 | 57.4% | 61 |
| August 2026 | 63.2% | 70 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data
Airlines on this route
| Airline | Flights | On time | Cancelled | Avg. delay when late |
|---|---|---|---|---|
| United Airlines | 451 | 74.8% | 0.7% | 74 min |
| Southwest Airlines | 212 | 59.3% | 0.5% | 55 min |
Delay odds by flight
How often each flight number arrived 15 or more minutes late over the last year.
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