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

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

74.1% of 2,091 official scheduled CHS-to-ORD flights arrived on time; 14.3% arrived at least 30 minutes late and 2.5% 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 SIGNALVariable
74.1%arrived on time
14.3%30+ min late
2.5%cancelled
2,091scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.8%all scheduled flights
120+ minutes late3.7%all scheduled flights
Diverted0.8%did not reach as scheduled
Average arrival+9.2 mincompleted flights

Which departure time was most reliable for CHS to ORD?

Among qualifying CHS-to-ORD departure window results, Late morning had the highest on-time rate: 85.4% of 329 flights. Evening was lowest at 60.4% across 434 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning55883.2%7.9%2.2%
Late morning32985.4%7.9%2.1%
Afternoon76770.5%17.3%2.3%
Evening43460.4%21.9%3.5%

Which weekday was most reliable for CHS to ORD?

Among qualifying CHS-to-ORD weekday results, Thursday had the highest on-time rate: 77.7% of 301 flights. Sunday was lowest at 66.2% across 302 flights.

DayFlightsOn time30+ minCancelled
Monday31474.2%14.6%1.9%
Tuesday29277.4%12.3%2.4%
Wednesday29275.7%13.7%2.4%
Thursday30177.7%11.3%1.3%
Friday30971.5%16.5%1.9%
Saturday28176.2%13.9%2.5%
Sunday30266.2%17.5%5.0%

Which airline was most reliable for CHS to ORD?

Among qualifying CHS-to-ORD airline results, American Airlines had the highest on-time rate: 79.0% of 238 flights. SkyWest Airlines was lowest at 65.9% across 85 flights.

AirlineFlightsOn time30+ minCancelled
United Airlines74975.0%13.1%2.0%
Envoy Air56277.2%13.0%2.7%
Republic Airways45667.5%16.2%3.1%
American Airlines23879.0%14.7%1.7%
SkyWest Airlines8565.9%22.4%4.7%
PSA Airlines1100.0%0.0%0.0%

Which month was most reliable for CHS to ORD?

Among qualifying CHS-to-ORD month results, October 2025 had the highest on-time rate: 82.4% of 176 flights. March 2026 was lowest at 65.1% across 209 flights.

MonthFlightsOn time30+ minCancelled
July 202517166.7%19.3%2.9%
August 202513979.9%11.5%3.6%
September 202514579.3%11.0%0.0%
October 202517682.4%10.8%0.0%
November 202517871.3%15.2%3.4%
December 202517271.5%17.4%2.3%
January 202614577.9%13.1%2.1%
February 202615275.7%15.8%2.0%
March 202620965.1%17.7%5.7%
April 202619471.1%15.5%2.6%
May 202620878.8%12.0%0.5%
June 202620273.3%11.4%4.0%

What drove CHS to ORD delay minutes?

National airspace was the largest recorded CHS-to-ORD delay category, accounting for 42.5% of 35,198 BTS-attributed delay minutes during July 2025–June 2026.

Airline23.5%
Late aircraft31.4%
National airspace42.5%
Weather2.6%
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.