Charleston (CHS) to Chicago (ORD): On-Time Performance
Data through July 2026
The calendar drives reliability on CHS–ORD. September 2024 flights landed on schedule 97% of the time, but July 2025 dropped to 69% — a gap of 28 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (87% vs 62%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 2.1%
- Flights/day
- 5.8
- last 12 months
- Duration
- 2h 35m
- scheduled
- Distance
- 760 mi
Best airline from CHS to ORD
5 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| United Airlinesmost reliable | 82% | 13 min | 1.5% | 1,345 |
| American Airlines | 81% | 19 min | 1.5% | 334 |
| Envoy Air | 78% | 15 min | 2.4% | 998 |
| Republic Airways | 77% | 14 min | 2.6% | 956 |
| SkyWest Airlines | 77% | 28 min | 2.9% | 140 |
Monthly on-time trend
Best time to fly from CHS to ORD
Aim for departures around 9 a.m. (93% on-time); avoid 7 p.m. departures (55%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 82% | 14 min |
| Tuesdaybest | 84% | 9 min |
| Wednesday | 80% | 16 min |
| Thursday | 82% | 15 min |
| Friday | 73% | 18 min |
| Saturday | 81% | 17 min |
| Sunday | 74% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft33%
- Airline operations23%
- National airspace system41%
- Weather2%
Frequently asked questions
- How often are flights from CHS to ORD delayed?
- 21% of CHS–ORD 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 15 minutes.
- Which airline is most reliable from CHS to ORD?
- United Airlines has the best on-time record on this route at 82%, based on 1,345 flights. 5 airlines flew CHS–ORD frequently enough to compare in this period.
- What is the best time of day to fly from CHS to ORD?
- Departures around 9 a.m. have the best record (93% on-time), while departures around 7 p.m. have the worst (55%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CHS to ORD?
- The scheduled CHS–ORD flight time averages 2h 35m over 760 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are CHS to ORD flights cancelled?
- 2.1% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from CHS to ORD?
- July 2025 was the roughest month in this dataset, with only 69% of arrivals on time. The best was September 2024 at 97%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 3,774 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.