Route · CHS → DCA · 2020–2025 BTS data
Charleston to Washington
The CHS–DCA corridor (Charleston, SC → Washington, DC) runs ahead of the national average, served by 24 carriers across roughly 444 miles.
Data updated 2026-06-13
- 81.4%
- On-time
- +2.4 pts
- vs US avg
- 88 min
- Delay when late
- 8,765
- Flights
Cancelled
4.2%
Best Month
Nov 2024 94%
Worst Month
Dec 2025 67%
Distance
444 mi
Carriers
24
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 143 | 47 | 5 | 0 | YX,OH,AA,MQ |
| Nov 2025 | 143 | 37 | 7 | 1 | MQ,OH,AA,YX |
| Oct 2025 | 151 | 33 | 1 | 1 | AA,OH,YX |
| Sep 2025 | 146 | 28 | 1 | 0 | OH,YX,AA |
| Aug 2025 | 149 | 27 | 6 | 0 | AA,YX,OH |
| Jul 2025 | 150 | 46 | 21 | 4 | AA,OH,YX |
| Jun 2025 | 149 | 46 | 8 | 1 | AA,OH,YX,MQ |
| May 2025 | 180 | 58 | 5 | 1 | AA,OH,YX |
| Apr 2025 | 176 | 39 | 2 | 0 | OH,YX,AA |
| Mar 2025 | 176 | 53 | 7 | 0 | AA,OH,YX |
| Feb 2025 | 160 | 49 | 26 | 2 | OH,YX |
| Jan 2025 | 166 | 29 | 30 | 1 | OH,YX |
| Dec 2024 | 143 | 22 | 5 | 0 | AA,MQ,OH,YX |
| Nov 2024 | 140 | 9 | 0 | 1 | MQ,YX,OH,AA |
| Oct 2024 | 150 | 20 | 0 | 0 | MQ,YX,AA,OH |
| Sep 2024 | 147 | 14 | 2 | 1 | YX,OH,AA,MQ |
| Aug 2024 | 154 | 41 | 9 | 0 | AA,OH,YX |
| Jul 2024 | 153 | 42 | 9 | 1 | AA,OH,YX |
| Jun 2024 | 149 | 25 | 0 | 1 | AA,OH,YX |
| May 2024 | 154 | 42 | 0 | 2 | AA,MQ,OH,YX |
| Apr 2024 | 146 | 33 | 1 | 2 | AA,MQ,OH,YX |
| Mar 2024 | 150 | 27 | 0 | 0 | AA,MQ,OH,YX |
| Feb 2024 | 141 | 20 | 0 | 0 | MQ,OH,YX |
| Jan 2024 | 137 | 37 | 9 | 0 | YX,OH |
Cancellation Rate
4.2%
154 of 3,653 flights
Diversion Rate
0.5%
19 of 3,653 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
CHS - Charleston
Full on-time, delay-cause, and seasonal performance for Charleston, SC.
Origin airport →DCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
Destination airport →Compare the two airports
See CHS and DCA side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to CHS–DCA.
Routes with a similar on-time rate
What the Data Says About CHS to DCA
8,765 tracked flights put the CHS to DCA pairing (Charleston to Washington) at a 81.4% on-time rate, squarely in line with the wider network. Delays that do occur run 88.2 minutes on average. Across the 444-mile route and its 24 carriers, the trailing 24 months show 4.2% cancelled and 0.5% diverted (3,653 flights sampled).
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 94% on-time, while Dec 2025 came in at just 67% - a 26-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.