CHS to BWI flight delays
Charleston, SC (CHS) Baltimore, MD (BWI) · 472 miles
1,240 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
81.65%
Arrived on time
Within 15 minutes of schedule
1.69%
Cancelled
Share of scheduled flights
54 min
When late, late by
Average across delayed arrivals
11 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The season swings this route hard. In January it ran 18.3 points more punctual than in July — a difference bigger than the one between the best and worst airlines on most routes. If the date is flexible, it is worth more than the carrier.
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.
The Charleston to Baltimore route sits close to the middle of the record — neither notably punctual nor notably late.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on CHS to BWI. Flights ran closest to schedule in January and worst in July.
Every airline on CHS to BWI
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 | 1,228 | 81.88% | 1.71% | 53 min | C |
| Spirit Airlines | 12 | 58.33% | 0% | 109 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
BWI to CHS Baltimore back to Charleston 80.59% on time COther routes from Charleston
Common questions
Are flights from Charleston to Baltimore usually delayed?
81.65% of flights on the CHS to BWI route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airlines fly from Charleston to Baltimore?
Only Southwest Airlines appears in the published record on this route, with 1,228 flights and 81.88% arriving on time.
How often are CHS to BWI flights cancelled?
1.69% of scheduled flights did not operate — about 17 in every thousand. That is in the normal range.
What is the best month to fly Charleston to Baltimore?
January, when 90.1% of flights arrived on time. The worst was July at 71.8%.
When CHS to BWI flights are late, how late are they?
About 54 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 CHS to BWI during January 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 →