Route · MIA → CHS · 2020–2025 BTS data
Miami to Charleston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), MIA to CHS (Miami to Charleston) ranks #2766 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 77.3%
- On-time
- -1.7 pts
- vs US avg
- 73 min
- Delay when late
- 4,313
- Flights
- #2766 of 4927
- Corpus placement
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 |
MIA–CHS seasonal on-time pattern
Best: January (86.3%) · weakest: June (63.9%)
Strongest calendar month
January
86.3% on-time · ~66 flights/mo
Busiest calendar month
May
~83 flights/mo avg
Weakest calendar month
June
63.9% on-time · ~63 flights/mo
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.
MIA on-time profileCHS - Charleston
Full on-time, delay-cause, and seasonal performance for Charleston, SC.
CHS on-time profileCompare the two airports
See MIA and CHS side by side on delays, cancellations, and reliability.
Compare MIA vs CHSOrigin-hub reliability standing
Mid-pack among MIA departures
From MIA, this corridor sits with 37 other 75–85% on-time routes out of 63 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 25 below 75%). Destination: Charleston · fleet on-time rank #4028 of 4927.
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.
On the multi-year calendar, MIA–CHS peaks in January at 86.3% on-time while May carries the heaviest traffic (~83 flights per month) ; the softest month is June at 63.9%, a 22.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does MIA to CHS rank among US routes by traffic? ▼
How often are flights delayed from MIA to CHS? ▼
What is the cancellation rate for MIA to CHS? ▼
How far is the flight from MIA to CHS? ▼
When is the best time to fly from MIA to CHS? ▼
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 MIA–CHS data
MIA–CHS is mid-pack at 77.3% on-time; month and carrier mix move more than the corridor headline.
- Compare MIA and CHS airport profiles: delay causes and top routes differ even on the same corridor. MIA airport
- If your dates flex, January (86.3% on-time) beats June (63.9%) on this corridor. Seasonal chart
- 4 other routes post a similar 77.3% 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.