BWI to CHS flight delays
Baltimore, MD (BWI) Charleston, SC (CHS) · 472 miles
107 flights · March 2025 – August 2026 · US Bureau of Transportation Statistics
75.47%
Arrived on time
Within 15 minutes of schedule
0.93%
Cancelled
Share of scheduled flights
65 min
When late, late by
Average across delayed arrivals
18 min
Delay per flight
Averaged over every flight flown
What the record says about this route
This route does better than its own airport. Departures from BWI overall run 9.9 points less punctual than this particular one — so whatever congestion BWI has, this route is largely escaping it.
Only Southwest Airlines flies this route in the published record, so there is no choice to weigh — the route's figures and the airline's are the same figures.
Flights from Baltimore to Charleston run late more often than the average route, though not severely.
Which airline should you fly on this route?
Over March 2025 – August 2026, Southwest Airlines arrived on time most often on BWI to CHS.
Every airline on BWI to CHS
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 107 | 75.47% | 0.93% | 65 min | C |
The return leg
CHS to BWI Charleston back to Baltimore 78.5% on time BOther routes from Baltimore
Common questions
Are flights from Baltimore to Charleston usually delayed?
75.47% of flights on the BWI to CHS route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is about the same as the average route in this record.
Which airlines fly from Baltimore to Charleston?
Only Southwest Airlines appears in the published record on this route, with 107 flights and 75.47% arriving on time.
How often are BWI to CHS flights cancelled?
0.93% of scheduled flights did not operate — about 9 in every thousand. That is in the normal range.
When BWI to CHS flights are late, how late are they?
About 65 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on BWI to CHS during March 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →