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

Charleston, SC (CHS) to Atlanta, GA (ATL) flight delay odds

Historically, 88.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 3,213 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
88.5%arrived on time
6.7%30+ min late
1.6%cancelled
3,213scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late4.2%all scheduled flights
120+ minutes late1.8%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival-4.6 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 morning1,22093.1%4.0%1.4%
Late morning49091.6%4.5%2.0%
Afternoon92185.1%7.9%1.8%
Evening58281.6%12.0%1.5%

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
Monday48688.7%8.0%1.2%
Tuesday45089.6%6.9%1.1%
Wednesday43694.5%3.0%0.7%
Thursday47790.6%6.5%0.0%
Friday47787.4%7.8%1.7%
Saturday41087.3%4.4%3.7%
Sunday47782.0%9.4%3.4%

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
Delta Air Lines3,21088.5%6.7%1.7%
SkyWest Airlines366.7%0.0%0.0%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 202528283.3%10.6%0.0%
August 202525487.0%8.7%2.0%
September 202523996.2%2.1%0.0%
October 202527991.4%4.7%0.4%
November 202526389.7%4.6%2.3%
December 202526388.6%7.6%1.5%
January 202624788.7%4.5%2.4%
February 202623491.0%4.7%2.1%
March 202628681.5%10.1%5.6%
April 202629490.1%6.8%1.0%
May 202629085.9%8.3%1.4%
June 202628290.4%6.0%1.1%

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.

Airline33.2%
Late aircraft43.8%
National airspace19.2%
Weather3.8%
Security0.1%
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.