Route · CHS → DCA · 2020–2025 BTS data
Charleston to Washington
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), CHS to DCA (Charleston to Washington) ranks #1377 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.4%
- On-time
- +2.4 pts
- vs US avg
- 88 min
- Delay when late
- 8,765
- Flights
- #1377 of 4927
- Corpus placement
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 |
CHS–DCA seasonal on-time pattern
Best: October (86.1%) · weakest: July (75.4%)
Strongest calendar month
October
86.1% on-time · ~148 flights/mo
Busiest calendar month
March
~150 flights/mo avg
Weakest calendar month
July
75.4% on-time · ~132 flights/mo
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.
CHS on-time profileDCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
DCA on-time profileCompare the two airports
See CHS and DCA side by side on delays, cancellations, and reliability.
Compare CHS vs DCAOrigin-hub reliability standing
Mid-pack among CHS departures
From CHS, this corridor sits with 18 other 75–85% on-time routes out of 21 tracked departures, not the hub's reliability leaders (3 at ≥85%) and not the softest ( 0 below 75%). Destination: Washington · fleet on-time rank #2570 of 4927.
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.
On the multi-year calendar, CHS–DCA peaks in October at 86.1% on-time while March carries the heaviest traffic (~150 flights per month) ; the softest month is July at 75.4%, a 10.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does CHS to DCA rank among US routes by traffic? ▼
How often are flights delayed from CHS to DCA? ▼
What is the cancellation rate for CHS to DCA? ▼
How far is the flight from CHS to DCA? ▼
When is the best time to fly from CHS to DCA? ▼
Airports on this route
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.
Using CHS–DCA data
CHS–DCA is mid-pack at 81.4% on-time; month and carrier mix move more than the corridor headline.
- Compare CHS and DCA airport profiles: delay causes and top routes differ even on the same corridor. CHS airport
- If your dates flex, October (86.1% on-time) beats July (75.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.4% on-time rate; compare before you commit to this pairing. Similar routes
On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.
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.