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

Chicago, IL (ORD) to Charleston, SC (CHS) flight delay odds

73.7% of 2,091 official scheduled ORD-to-CHS flights arrived on time; 15.9% arrived at least 30 minutes late and 2.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
73.7%arrived on time
15.9%30+ min late
2.1%cancelled
2,091scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late8.4%all scheduled flights
120+ minutes late3.0%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+7.5 mincompleted flights

Which departure time was most reliable for ORD to CHS?

Among qualifying ORD-to-CHS departure window results, Early morning had the highest on-time rate: 81.6% of 468 flights. Evening was lowest at 60.9% across 493 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning46881.6%12.0%1.1%
Late morning56878.9%12.9%0.9%
Afternoon55773.4%14.9%1.8%
Evening49360.9%24.1%4.3%

Which weekday was most reliable for ORD to CHS?

Among qualifying ORD-to-CHS weekday results, Tuesday had the highest on-time rate: 79.0% of 291 flights. Sunday was lowest at 69.0% across 310 flights.

DayFlightsOn time30+ minCancelled
Monday31071.0%16.8%2.9%
Tuesday29179.0%10.7%1.7%
Wednesday29376.8%15.7%0.3%
Thursday30573.4%14.8%2.6%
Friday30774.3%16.6%1.3%
Saturday27572.7%16.0%2.5%
Sunday31069.0%20.3%2.9%

Which airline was most reliable for ORD to CHS?

Among qualifying ORD-to-CHS airline results, Republic Airways had the highest on-time rate: 79.5% of 454 flights. SkyWest Airlines was lowest at 65.9% across 85 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines75072.9%16.9%1.6%
Envoy Air56272.1%14.2%2.7%
Republic Airways45479.5%12.8%2.0%
American Airlines23971.5%20.1%2.1%
SkyWest Airlines8565.9%22.4%2.4%
PSA Airlines1100.0%0.0%0.0%

Which month was most reliable for ORD to CHS?

Among qualifying ORD-to-CHS month results, September 2025 had the highest on-time rate: 84.1% of 145 flights. July 2025 was lowest at 63.7% across 171 flights.

MonthFlightsOn time30+ minCancelled
July 202517163.7%28.1%1.8%
August 202513880.4%8.7%3.6%
September 202514584.1%10.3%0.0%
October 202517780.8%8.5%0.0%
November 202517874.2%17.4%4.5%
December 202517272.7%16.3%0.6%
January 202614565.5%19.3%4.1%
February 202615176.8%11.9%0.0%
March 202621063.8%21.9%4.3%
April 202619470.6%17.5%2.6%
May 202620876.9%14.9%0.5%
June 202620277.7%12.9%2.5%

What drove ORD to CHS delay minutes?

Late aircraft was the largest recorded ORD-to-CHS delay category, accounting for 44.7% of 31,904 BTS-attributed delay minutes during July 2025–June 2026.

Airline26.2%
Late aircraft44.7%
National airspace22.7%
Weather6.4%
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.