Baltimore (BWI) to Charleston (CHS): On-Time Performance
Data through May 2026
The calendar drives reliability on BWI–CHS. January 2026 flights landed on schedule 92% of the time, but July 2024 dropped to 59% — a gap of 33 points. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 69%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 3.4
- last 12 months
- Duration
- 1h 45m
- scheduled
- Distance
- 472 mi
Monthly on-time trend
Best time to fly from BWI to CHS
Aim for departures around 1 p.m. (88% on-time); avoid 9 p.m. departures (57%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 77% | 16 min |
| Tuesdaybest | 82% | 10 min |
| Wednesday | 81% | 12 min |
| Thursday | 78% | 12 min |
| Friday | 77% | 12 min |
| Saturday | 82% | 10 min |
| Sunday | 74% | 15 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft49%
- Airline operations28%
- National airspace system18%
- Weather5%
Frequently asked questions
- How often are flights from BWI to CHS delayed?
- 22% of BWI–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 13 minutes.
- What is the best time of day to fly from BWI to CHS?
- Departures around 1 p.m. have the best record (88% on-time), while departures around 9 p.m. have the worst (57%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BWI to CHS?
- The scheduled BWI–CHS flight time averages 1h 45m over 472 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are BWI to CHS flights cancelled?
- 1.3% 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 BWI to CHS?
- July 2024 was the roughest month in this dataset, with only 59% of arrivals on time. The best was January 2026 at 92%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 2,509 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.