BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
CHSMIA

Charleston, SC (CHS) to Miami, FL (MIA) flight delay odds

Historically, 78.0% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,007 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
78.0%arrived on time
13.7%30+ min late
1.3%cancelled
1,007scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.1%all scheduled flights
120+ minutes late4.5%all scheduled flights
Diverted0.5%did not reach as scheduled
Average arrival+12.4 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Early morning36587.4%6.0%1.4%
Late morning31182.0%10.6%0.6%
Evening32563.4%25.2%1.8%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday14778.9%12.9%2.7%
Tuesday14283.8%7.7%2.8%
Wednesday14484.7%8.3%0.7%
Thursday14179.4%11.3%0.0%
Friday14377.6%16.1%0.0%
Saturday14672.6%17.8%2.1%
Sunday14468.8%21.5%0.7%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
American Airlines92477.4%14.3%1.2%
Envoy Air6888.2%5.9%0.0%
Republic Airways1566.7%13.3%13.3%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20259269.6%20.7%2.2%
August 20259373.1%19.4%0.0%
September 20256279.0%8.1%1.6%
October 20258781.6%12.6%0.0%
November 20258683.7%10.5%1.2%
December 20258681.4%10.5%0.0%
January 20268775.9%13.8%5.7%
February 20268384.3%12.0%1.2%
March 20269380.6%12.9%3.2%
April 20269375.3%11.8%0.0%
May 20268571.8%17.6%0.0%
June 20266081.7%11.7%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline28.8%
Late aircraft59.3%
National airspace11.1%
Weather0.8%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.