Route Reliability
Charleston → Washington
CHS–DCA · 444 miles · Charleston International Airport to Ronald Reagan Washington National Airport
- 73%
- Arrive within 15 minutes
- 19 min
- Average arrival delay
- 4.9%
- Cancelled
- 1,758
- Flights in the data
Data through May 2026.
American Airlines is the only airline in this data on this route, arriving on time 73% of the time across 1,758 flights. No comparison to make.
What the data says
Morning-you made the right choice.
CHS–DCA flights departing between 3–6 AM arrived on time 92% of the time, versus 56% between 6–9 PM.
Thursdays have been rough.
CHS–DCA flights arrived on time 83% of the time on Saturdays and just 66% on Thursdays. That gap is worth planning around.
Keep a backup plan handy.
This route was cancelled 4.9% of the time. Typical for U.S. flights is around 1–2%.
Trending in the right direction.
CHS–DCA flights arrived on time 74% of the time over the last three months in the data, compared with 67% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon77%(247 flights)
- Tue74%(251 flights)
- Wed70%(243 flights)
- Thu66%(242 flights)
- Fri69%(244 flights)
- Sat83%(194 flights)
- Sun73%(242 flights)
- 3–6 AM92%(82 flights)
- 6–9 AM91%(264 flights)
- 9 AM–12 PM82%(354 flights)
- 12–3 PM61%(336 flights)
- 3–6 PM72%(313 flights)
- 6–9 PM56%(314 flights)
Jun 67% → May 75% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 67% | 140 |
| July 2025 | 63% | 125 |
| August 2025 | 82% | 146 |
| September 2025 | 82% | 145 |
| October 2025 | 79% | 149 |
| November 2025 | 73% | 135 |
| December 2025 | 67% | 138 |
| January 2026 | 70% | 128 |
| February 2026 | 65% | 127 |
| March 2026 | 68% | 135 |
| April 2026 | 79% | 145 |
| May 2026 | 75% | 150 |
Same trip, other airports
Keep nerding
Based on 1,758 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.