Route · BWI → CHS · 2020–2025 BTS data
Baltimore to Charleston
The BWI–CHS corridor (Baltimore, MD → Charleston, SC) runs behind the national average, served by 3 carriers across roughly 472 miles.
Data updated 2026-06-13
- 76.4%
- On-time
- -2.6 pts
- vs US avg
- 53 min
- Delay when late
- 6,736
- Flights
Cancelled
1.0%
Best Month
Feb 2024 94%
Worst Month
Jul 2024 59%
Distance
472 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 104 | 19 | 2 | 2 | WN |
| Nov 2025 | 103 | 18 | 2 | 0 | WN |
| Oct 2025 | 118 | 23 | 0 | 0 | WN |
| Sep 2025 | 90 | 13 | 0 | 0 | WN |
| Aug 2025 | 99 | 23 | 0 | 0 | WN,NK |
| Jul 2025 | 117 | 34 | 3 | 1 | NK,WN |
| Jun 2025 | 119 | 37 | 2 | 0 | WN,NK |
| May 2025 | 125 | 35 | 0 | 0 | WN,NK |
| Apr 2025 | 114 | 24 | 0 | 0 | WN |
| Mar 2025 | 108 | 15 | 1 | 0 | WN |
| Feb 2025 | 80 | 21 | 0 | 0 | WN |
| Jan 2025 | 91 | 25 | 7 | 0 | WN |
| Dec 2024 | 94 | 27 | 0 | 0 | WN |
| Nov 2024 | 101 | 14 | 0 | 0 | WN |
| Oct 2024 | 109 | 15 | 0 | 0 | WN |
| Sep 2024 | 107 | 15 | 0 | 0 | WN |
| Aug 2024 | 112 | 25 | 6 | 0 | NK,WN |
| Jul 2024 | 108 | 44 | 0 | 0 | WN |
| Jun 2024 | 107 | 26 | 1 | 0 | WN |
| May 2024 | 118 | 37 | 0 | 0 | WN |
| Apr 2024 | 113 | 30 | 0 | 0 | WN |
| Mar 2024 | 107 | 27 | 0 | 0 | WN |
| Feb 2024 | 83 | 5 | 0 | 0 | WN |
| Jan 2024 | 88 | 27 | 1 | 0 | WN |
Cancellation Rate
1.0%
25 of 2,515 flights
Diversion Rate
0.1%
3 of 2,515 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
BWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
Origin airport →CHS - Charleston
Full on-time, delay-cause, and seasonal performance for Charleston, SC.
Destination airport →Compare the two airports
See BWI and CHS side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to BWI–CHS.
Routes with a similar on-time rate
What the Data Says About BWI to CHS
The Baltimore to Charleston corridor (BWI to CHS) posts a 76.4% on-time rate on the lower edge of the average band, based on 6,736 tracked flights. Late flights run 53.4 minutes behind on average. 3 carriers cover the 472-mile route; over the last 24 months, 25 of 2,515 flights were cancelled (1.0%) and 0.1% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 94% on-time, while Jul 2024 came in at just 59% - a 35-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from BWI to CHS? ▼
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.