Route Reliability
Charleston → Miami
CHS–MIA · 489 miles · Charleston International Airport to Miami International Airport
- 80%
- Arrive within 15 minutes
- 13 min
- Average arrival delay
- 1.3%
- Cancelled
- 1,037
- Flights in the data
Data through May 2026.
American Airlines is the only airline in this data on this route, arriving on time 80% of the time across 1,037 flights. No comparison to make.
What the data says
Morning flights do better here.
CHS–MIA flights departing between 3–6 AM arrived on time 97% of the time, versus 65% between 6–9 PM.
Sunday scaries are real for this one.
CHS–MIA flights arrived on time 87% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.
Slipping a little lately.
CHS–MIA flights arrived on time 78% of the time over the last three months in the data, compared with 83% 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
- Mon81%(148 flights)
- Tue87%(139 flights)
- Wed86%(146 flights)
- Thu79%(144 flights)
- Fri80%(147 flights)
- Sat78%(147 flights)
- Sun71%(149 flights)
- 3–6 AM97%(30 flights)
- 6–9 AM89%(328 flights)
- 9 AM–12 PM84%(337 flights)
- 12–3 PM—(6 flights)
- 6–9 PM65%(319 flights)
Jun 83% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 90 |
| July 2025 | 73% | 89 |
| August 2025 | 74% | 93 |
| September 2025 | 82% | 61 |
| October 2025 | 83% | 87 |
| November 2025 | 85% | 85 |
| December 2025 | 83% | 86 |
| January 2026 | 82% | 81 |
| February 2026 | 85% | 82 |
| March 2026 | 83% | 90 |
| April 2026 | 76% | 92 |
| May 2026 | 74% | 84 |
Same trip, other airports
Keep nerding
Based on 1,037 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.