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

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

72.8% of 357 official scheduled MDW-to-CHS flights arrived on time; 16.0% arrived at least 30 minutes late and 1.7% 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
72.8%arrived on time
16.0%30+ min late
1.7%cancelled
357scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late7.0%all scheduled flights
120+ minutes late1.7%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+9.9 mincompleted flights

Which departure time was most reliable for MDW to CHS?

Among qualifying MDW-to-CHS departure window results, Afternoon had the highest on-time rate: 80.1% of 146 flights. Evening was lowest at 63.0% across 138 flights.

Departure windowFlightsOn time30+ minCancelled
Afternoon14680.1%12.3%0.7%
Evening13863.0%21.7%2.9%

Which weekday was most reliable for MDW to CHS?

Among qualifying MDW-to-CHS weekday results, Saturday had the highest on-time rate: 85.7% of 56 flights. Monday was lowest at 55.1% across 49 flights.

DayFlightsOn time30+ minCancelled
Monday4955.1%26.5%4.1%
Tuesday3969.2%20.5%0.0%
Wednesday3574.3%14.3%0.0%
Thursday4766.0%23.4%4.3%
Friday5280.8%11.5%0.0%
Saturday5685.7%8.9%1.8%
Sunday7974.7%11.4%1.3%

Which airline was most reliable for MDW to CHS?

Only Southwest Airlines met the MDW-to-CHS airline threshold: 72.8% of 357 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Southwest Airlines35772.8%16.0%1.7%

Which month was most reliable for MDW to CHS?

Among qualifying MDW-to-CHS month results, October 2025 had the highest on-time rate: 85.7% of 35 flights. June 2026 was lowest at 52.0% across 50 flights.

MonthFlightsOn time30+ minCancelled
July 20253961.5%23.1%5.1%
August 20253675.0%16.7%2.8%
September 20253482.4%8.8%0.0%
October 20253585.7%2.9%0.0%
November 20252176.2%14.3%4.8%
December 20251770.6%23.5%0.0%
February 20261877.8%5.6%0.0%
March 20262982.8%13.8%3.4%
April 20263381.8%9.1%3.0%
May 20263675.0%11.1%0.0%
June 20265052.0%32.0%0.0%

What drove MDW to CHS delay minutes?

Late aircraft was the largest recorded MDW-to-CHS delay category, accounting for 53.5% of 4,902 BTS-attributed delay minutes during July 2025–June 2026.

Airline33.3%
Late aircraft53.5%
National airspace11.9%
Weather0.2%
Security1.1%
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.