DEN to CHS flight delays & on-time performance
Nonstop flights from Denver International Airport to Charleston International Airport · 1,449 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at DEN or CHS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Denver (DEN) to Charleston (CHS) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0.3% were cancelled, and 5% arrived an hour or more late.
- United Airlines was the most punctual airline here (81% on time); Southwest Airlines was the least (68%).
- Departures scheduled around 9am did best (84% on time); around 5pm did worst (59%).
- Tuesday was the most reliable day to fly (86% on time) and Friday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (37%).
Which airline is most on time from DEN to CHS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| United Airlines | 81% | 0.5% | 10 min | 4.6% | 438 |
| Southwest Airlines | 68% | 0.0% | 14 min | 5.4% | 204 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am84%339 flights
- 10am68%82 flights
- 2pm66%50 flights
- 3pm71%79 flights
- 4pm75%61 flights
- 5pm59%22 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%0.0% cancelled
- Tuesday86%0.0% cancelled
- Wednesday78%0.0% cancelled
- Thursday74%0.0% cancelled
- Friday72%1.0% cancelled
- Saturday78%1.2% cancelled
- Sunday72%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)37%
- Air traffic control & airport congestion32%
- Late-arriving aircraft31%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather100%
- Airline (crew, maintenance, cleaning, fueling)0%
- Air traffic control & airport congestion0%
- Security0%
DEN to CHS: common questions
- How often are DEN to CHS flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Denver to Charleston cancelled?
- 0.3% of scheduled flights were cancelled (2 of 642).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 43 min behind schedule on average, and 4.9% of flights were an hour or more late.
- How long is taxi time at DEN?
- Flights on this route spent 20 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CHS to DEN — 69% on time
More flights from Denver
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: DEN → CHS, nonstop flights by US airlines that report to the DOT. How we calculate this.