Route · MIA → CHS · 2020–2025 BTS data
Miami to Charleston
The MIA–CHS corridor (Miami, FL → Charleston, SC) runs behind the national average, served by 13 carriers across roughly 489 miles.
Data updated 2026-06-13
- 77.3%
- On-time
- -1.7 pts
- vs US avg
- 73 min
- Delay when late
- 4,313
- Flights
Cancelled
1.6%
Best Month
Oct 2024 93%
Worst Month
Mar 2025 50%
Distance
489 mi
Carriers
13
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 86 | 23 | 0 | 2 | YX,AA |
| Nov 2025 | 86 | 25 | 1 | 0 | MQ,AA,YX |
| Oct 2025 | 87 | 23 | 0 | 0 | AA,MQ |
| Sep 2025 | 62 | 9 | 1 | 0 | MQ,AA |
| Aug 2025 | 93 | 37 | 0 | 0 | AA,MQ |
| Jul 2025 | 92 | 32 | 2 | 1 | AA,MQ |
| Jun 2025 | 90 | 30 | 0 | 0 | AA,MQ |
| May 2025 | 93 | 28 | 0 | 0 | AA |
| Apr 2025 | 87 | 24 | 2 | 0 | AA |
| Mar 2025 | 62 | 31 | 0 | 0 | AA |
| Feb 2025 | 56 | 17 | 1 | 0 | AA |
| Jan 2025 | 62 | 8 | 5 | 1 | AA,MQ |
| Dec 2024 | 62 | 19 | 0 | 0 | AA,MQ |
| Nov 2024 | 58 | 7 | 0 | 0 | MQ,AA |
| Oct 2024 | 61 | 4 | 1 | 0 | MQ,YX,AA |
| Sep 2024 | 60 | 16 | 0 | 0 | YX,AA,MQ |
| Aug 2024 | 60 | 23 | 6 | 0 | AA,MQ |
| Jul 2024 | 62 | 29 | 0 | 0 | AA,MQ |
| Jun 2024 | 65 | 29 | 3 | 0 | AA,MQ |
| May 2024 | 93 | 30 | 1 | 0 | AA,MQ |
| Apr 2024 | 87 | 13 | 0 | 0 | AA,MQ |
| Mar 2024 | 62 | 23 | 4 | 0 | AA |
| Feb 2024 | 59 | 22 | 0 | 0 | AA,MQ |
| Jan 2024 | 62 | 20 | 1 | 0 | AA,MQ |
Cancellation Rate
1.6%
28 of 1,747 flights
Diversion Rate
0.2%
4 of 1,747 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
Origin airport →CHS - Charleston
Full on-time, delay-cause, and seasonal performance for Charleston, SC.
Destination airport →Compare the two airports
See MIA 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 MIA–CHS.
Routes with a similar on-time rate
What the Data Says About MIA to CHS
The Miami to Charleston corridor (MIA to CHS) posts a 77.3% on-time rate on the lower edge of the average band, based on 4,313 tracked flights. Late flights run 72.7 minutes behind on average. 13 carriers cover the 489-mile route; over the last 24 months, 28 of 1,747 flights were cancelled (1.6%) and 0.2% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 93% on-time, while Mar 2025 came in at just 50% - a 43-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.