Route · CHS → MIA · 2020–2025 BTS data
Charleston to Miami
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), CHS to MIA (Charleston to Miami) ranks #2769 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 84.2%
- On-time
- +5.2 pts
- vs US avg
- 90 min
- Delay when late
- 4,310
- Flights
- #2769 of 4927
- Corpus placement
Cancelled
1.8%
Best Month
Oct 2024 92%
Worst Month
Feb 2024 64%
Distance
489 mi
Carriers
12
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 86 | 16 | 0 | 0 | YX,AA |
| Nov 2025 | 86 | 13 | 1 | 0 | MQ,AA,YX |
| Oct 2025 | 87 | 16 | 0 | 0 | AA,MQ |
| Sep 2025 | 62 | 12 | 1 | 0 | MQ,AA |
| Aug 2025 | 93 | 25 | 0 | 0 | AA,MQ |
| Jul 2025 | 92 | 25 | 2 | 1 | AA,MQ |
| Jun 2025 | 90 | 16 | 0 | 0 | AA,MQ |
| May 2025 | 92 | 19 | 1 | 0 | AA |
| Apr 2025 | 87 | 22 | 2 | 0 | AA |
| Mar 2025 | 62 | 13 | 0 | 0 | AA |
| Feb 2025 | 56 | 11 | 1 | 0 | AA |
| Jan 2025 | 62 | 7 | 5 | 0 | AA,MQ |
| Dec 2024 | 64 | 15 | 0 | 0 | AA,MQ |
| Nov 2024 | 58 | 5 | 0 | 0 | MQ,AA |
| Oct 2024 | 61 | 5 | 2 | 0 | MQ,YX,AA |
| Sep 2024 | 59 | 9 | 0 | 0 | YX,AA,MQ |
| Aug 2024 | 61 | 12 | 7 | 1 | AA,MQ |
| Jul 2024 | 62 | 16 | 1 | 0 | AA,MQ |
| Jun 2024 | 64 | 12 | 3 | 0 | AA,MQ |
| May 2024 | 93 | 21 | 0 | 0 | AA,MQ |
| Apr 2024 | 86 | 13 | 0 | 0 | AA,MQ |
| Mar 2024 | 62 | 16 | 4 | 0 | AA |
| Feb 2024 | 58 | 21 | 0 | 0 | AA,MQ |
| Jan 2024 | 62 | 19 | 1 | 0 | AA,MQ |
CHS–MIA seasonal on-time pattern
Best: November (89.9%) · weakest: July (79.2%)
Strongest calendar month
November
89.9% on-time · ~59 flights/mo
Busiest calendar month
May
~83 flights/mo avg
Weakest calendar month
July
79.2% on-time · ~58 flights/mo
Cancellation Rate
1.8%
31 of 1,745 flights
Diversion Rate
0.1%
2 of 1,745 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 profileMIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
MIA on-time profileCompare the two airports
See CHS and MIA side by side on delays, cancellations, and reliability.
Compare CHS vs MIAOrigin-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: Miami · fleet on-time rank #1501 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to CHS–MIA.
Routes with a similar on-time rate
What the Data Says About CHS to MIA
Bureau of Transportation Statistics records show Charleston to Miami (CHS to MIA) running a 84.2% on-time rate over 4,310 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 90.0 minutes. The 489-mile corridor is served by 12 carriers, and over the last 24 months 1.8% of 1,745 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 92% on-time, while Feb 2024 came in at just 64% - a 28-point swing worth factoring into travel timing.
On the multi-year calendar, CHS–MIA peaks in November at 89.9% on-time while May carries the heaviest traffic (~83 flights per month) ; the softest month is July at 79.2%, 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 MIA rank among US routes by traffic? ▼
How often are flights delayed from CHS to MIA? ▼
What is the cancellation rate for CHS to MIA? ▼
How far is the flight from CHS to MIA? ▼
When is the best time to fly from CHS to MIA? ▼
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–MIA data
CHS–MIA runs 5.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare CHS and MIA airport profiles: delay causes and top routes differ even on the same corridor. CHS airport
- If your dates flex, November (89.9% on-time) beats July (79.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 84.2% 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.