Charleston (CHS) to Chicago (MDW): On-Time Performance
Data through July 2026
When you fly CHS to MDW matters as much as anything else about the booking: the route swung from 100% on-time in October 2024 to just 52% in November 2025. Across the full period the route averages 85% on-time against a national 78%. Morning departures also hold up better than evening ones (94% vs 64%), which matters most in the rough months.
- On-time
- 85%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 1.0
- last 12 months
- Duration
- 2h 14m
- scheduled
- Distance
- 745 mi
Monthly on-time trend
Best time to fly from CHS to MDW
Aim for departures around 7 a.m. (96% on-time); avoid 5 p.m. departures (54%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 91% | 4 min |
| Tuesday | 91% | 3 min |
| Wednesdaybest | 93% | 7 min |
| Thursday | 85% | 9 min |
| Friday | 86% | 11 min |
| Saturday | 79% | 13 min |
| Sunday | 79% | 14 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft57%
- Airline operations23%
- National airspace system16%
- Weather4%
Frequently asked questions
- How often are flights from CHS to MDW delayed?
- 15% of CHS–MDW flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 10 minutes.
- What is the best time of day to fly from CHS to MDW?
- Departures around 7 a.m. have the best record (96% on-time), while departures around 5 p.m. have the worst (54%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CHS to MDW?
- The scheduled CHS–MDW flight time averages 2h 14m over 745 miles. Actual arrival times vary — flights on this route land 15+ minutes late 15% of the time.
- How often are CHS to MDW flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from CHS to MDW?
- November 2025 was the roughest month in this dataset, with only 52% of arrivals on time. The best was October 2024 at 100%. If your dates are flexible, that 48-point gap is worth planning around.
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Related guides
Based on 764 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.