OnTimeStats

Airport on-time performance

CHS

Charleston

Data through Dec 2025Source: US DOT · BTS
On-time rate77%flights departing here that arrived on time
Median delayon timetypical departure delay
p90 delay45 min1 in 10 departures is worsetail risk
Cancelled2.2%of scheduled departures
Left the gate on time80%departures that pushed back within 15 min of schedule (DepDel15)

based on 24,634 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

As a connection hub

Arriving here (inbound performance)

These figures reflect inbound flights arriving at this airport — relevant for connections and layovers.

75%arrived on time here
(within 15 min, inbound flights)
  • On time75%
  • 15–59 min late15%
  • 1–2 hr late5%
  • 2 hr+ late3%
  • Cancelled or diverted2%

Arrival outcomes for inbound flights. Last segment = cancelled or diverted.

Bad day: 1 in 10 flights arrives more than 50 min late.

By airline

Carriers departing here (last 12 months)

Delay = arrival delay (ArrDel15-based)

  • Delta Air Linesbest
    On-time82%
    Medianon time
    p9035 min
    Cancel1.7%
    Flights4,111
  • Southwest Airlines
    On-time81%
    Medianon time
    p9030 min
    Cancel1.0%
    Flights3,139
  • American Airlines
    On-time78%
    Medianon time
    p9045 min
    Cancel1.8%
    Flights5,053
  • United Airlines
    On-time77%
    Medianon time
    p9055 min
    Cancel1.6%
    Flights1,929
  • Envoy Air
    On-time75%
    Medianon time
    p9045 min
    Cancel1.6%
    Flights671
  • Republic Airways
    On-time75%
    Medianon time
    p9050 min
    Cancel3.6%
    Flights2,447
  • SkyWest Airlines
    On-time74%
    Medianon time
    p9060 min
    Cancel1.1%
    Flights363
  • JetBlue Airways
    On-time70%
    Medianon time
    p9070 min
    Cancel2.2%
    Flights1,625
  • PSA Airlines
    On-time69%
    Medianon time
    p9065 min
    Cancel6.2%
    Flights1,927
  • Alaska Airlines
    On-time67%
    Medianon time
    p9040 min
    Cancel0.7%
    Flights275
  • Spirit Airlines
    On-time64%
    Medianon time
    p90105 min
    Cancel5.4%
    Flights316

Over time

Departure on-time trend

By season

On-time rate by month

Where flights go

Busiest routes

CHS → ATL→CHS → CLT→CHS → EWR→CHS → ORD→CHS → IAD→CHS → DFW→CHS → LGA→CHS → JFK→CHS → BWI→CHS → DCA→
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Will you make a connection at CHS? →

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.