BWI to CHS flight delays & on-time performance
Nonstop flights from Baltimore/Washington International Thurgood Marshall Airport to Charleston International Airport · 472 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BWI or CHS right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Baltimore (BWI) to Charleston (CHS) arrived on time 80% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 1.6% were cancelled, and 6% arrived an hour or more late.
- Departures scheduled around 8am did best (90% on time); around 8pm did worst (58%).
- Tuesday was the most reliable day to fly (86% on time) and Thursday the least (75%).
- The largest source of delay minutes was late-arriving aircraft (48%).
Which airline is most on time from BWI to CHS?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Spirit Airlines | 100% | 0.0% | 1 min | 0.0% | 4 |
| Southwest Airlines | 80% | 1.6% | 12 min | 5.9% | 1,230 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 8am90%332 flights
- 9am97%34 flights
- 11am80%159 flights
- 12pm85%53 flights
- 1pm85%49 flights
- 2pm93%29 flights
- 3pm80%62 flights
- 5pm69%143 flights
- 6pm80%132 flights
- 7pm86%67 flights
- 8pm58%159 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday79%2.6% cancelled
- Tuesday86%2.5% cancelled
- Wednesday84%0.0% cancelled
- Thursday75%0.5% cancelled
- Friday80%1.0% cancelled
- Saturday81%2.2% cancelled
- Sunday77%2.4% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft48%
- Airline (crew, maintenance, cleaning, fueling)33%
- Air traffic control & airport congestion12%
- Extreme weather6%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Extreme weather75%
- Airline (crew, maintenance, cleaning, fueling)15%
- Air traffic control & airport congestion10%
- Security0%
BWI to CHS: common questions
- How often are BWI to CHS flights on time?
- 80% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Baltimore to Charleston cancelled?
- 1.6% of scheduled flights were cancelled (20 of 1,234).
- How long are typical delays?
- Across all flights the average arrival delay was 12 min (early arrivals count as zero). Flights that were late arrived 54 min behind schedule on average, and 5.9% of flights were an hour or more late.
- How long is taxi time at BWI?
- Flights on this route spent 15 min taxiing from the gate to takeoff on average.
Related routes
Return trip: CHS to BWI — 82% on time
More flights from Baltimore
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: BWI → CHS, nonstop flights by US airlines that report to the DOT. How we calculate this.