FlightRecord

Chicago (MDW) to Charleston (CHS): On-Time Performance

Data through May 2026

Chicago (MDW) to Charleston (CHS) is a thinner route than most in this dataset — 346 departures over the past year, roughly 7 a week — so treat these numbers as indicative rather than definitive. Of the flights that did operate, 78% arrived on time.

On-time
78%
arrived <15 min late
Avg delay
14 min
completed flights
Cancelled
1.0%
Flights/day
0.95
last 12 months
Duration
2h 3m
scheduled
Distance
745 mi

Monthly on-time trend

Monthly on-time percentage for MDW to CHS flights50%75%100%June 2024: 80% on-time (40 flights)80Jun 2024July 2024: 64% on-time (39 flights)64August 2024: 69% on-time (36 flights)69September 2024: 82% on-time (34 flights)82Sep 2024October 2024: 97% on-time (35 flights)97November 2024: 95% on-time (21 flights)95December 2024: 83% on-time (18 flights)83Dec 2024January 2025: 100% on-time (9 flights)100February 2025: 94% on-time (17 flights)94March 2025: 87% on-time (37 flights)87Mar 2025April 2025: 63% on-time (35 flights)63May 2025: 74% on-time (35 flights)74June 2025: 72% on-time (39 flights)72Jun 2025July 2025: 65% on-time (39 flights)65August 2025: 77% on-time (36 flights)77September 2025: 82% on-time (34 flights)82Sep 2025October 2025: 86% on-time (35 flights)86November 2025: 80% on-time (21 flights)80December 2025: 71% on-time (17 flights)71Dec 2025January 2026: 56% on-time (9 flights)56February 2026: 78% on-time (18 flights)78March 2026: 86% on-time (29 flights)86Mar 2026April 2026: 84% on-time (33 flights)84May 2026: 75% on-time (36 flights)75

Best time to fly from MDW to CHS

Aim for departures around 9 a.m. (91% on-time); avoid 9 p.m. departures (61%).

On-time percentage by scheduled departure hour, MDW to CHS8 a.m.: 86% on-time (44 flights)89 a.m.: 91% on-time (32 flights)910 a.m.: 78% on-time (23 flights)1012 p.m.: 81% on-time (60 flights)121 p.m.: 87% on-time (95 flights)132 p.m.: 73% on-time (63 flights)143 p.m.: 88% on-time (56 flights)154 p.m.: 83% on-time (60 flights)165 p.m.: 70% on-time (31 flights)176 p.m.: 77% on-time (58 flights)187 p.m.: 76% on-time (92 flights)198 p.m.: 58% on-time (27 flights)209 p.m.: 61% on-time (52 flights)21scheduled departure hour

By day of week

DayOn-timeAvg delay
Monday74%17 min
Tuesday78%16 min
Wednesday77%13 min
Thursday75%16 min
Fridaybest85%11 min
Saturday82%13 min
Sunday77%12 min

What causes delays on this route

Share of total delay minutes by cause, as reported by carriers to the US DOT.

  • Late-arriving aircraft52%
  • Airline operations36%
  • National airspace system11%
  • Security1%

Frequently asked questions

How often are flights from MDW to CHS delayed?
22% of MDW–CHS flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 14 minutes.
What is the best time of day to fly from MDW to CHS?
Departures around 9 a.m. have the best record (91% on-time), while departures around 9 p.m. have the worst (61%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
How long is the flight from MDW to CHS?
The scheduled MDW–CHS flight time averages 2h 3m over 745 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
How often are MDW to CHS flights cancelled?
1% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
What is the worst month to fly from MDW to CHS?
April 2025 was the roughest month in this dataset, with only 63% of arrivals on time. The best was October 2024 at 97%. If your dates are flexible, that 34-point gap is worth planning around.

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Based on 702 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.