Route · MDW → CHS · 2020–2025 BTS data
Chicago to Charleston
The MDW–CHS corridor (Chicago, IL → Charleston, SC) runs behind the national average, served by 1 carrier across roughly 745 miles.
Data updated 2026-06-13
- 78.3%
- On-time
- -0.7 pts
- vs US avg
- 57 min
- Delay when late
- 2,992
- Flights
Cancelled
0.6%
Best Month
Apr 2024 89%
Worst Month
Jul 2023 50%
Distance
745 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Oct 2025 | 35 | 5 | 0 | 0 | WN |
| Sep 2025 | 34 | 6 | 0 | 0 | WN |
| Aug 2025 | 36 | 8 | 1 | 0 | WN |
| Jul 2025 | 39 | 13 | 2 | 0 | WN |
| Jun 2025 | 39 | 11 | 0 | 0 | WN |
| May 2025 | 35 | 9 | 0 | 0 | WN |
| Apr 2025 | 35 | 13 | 0 | 0 | WN |
| Mar 2025 | 37 | 5 | 0 | 0 | WN |
| Oct 2024 | 35 | 1 | 0 | 0 | WN |
| Sep 2024 | 34 | 6 | 0 | 0 | WN |
| Aug 2024 | 36 | 11 | 1 | 0 | WN |
| Jul 2024 | 39 | 13 | 0 | 1 | WN |
| Jun 2024 | 40 | 8 | 0 | 0 | WN |
| May 2024 | 58 | 12 | 0 | 0 | WN |
| Apr 2024 | 57 | 6 | 0 | 0 | WN |
| Mar 2024 | 57 | 8 | 0 | 0 | WN |
| Feb 2024 | 33 | 0 | 0 | 0 | WN |
| Jan 2024 | 35 | 6 | 0 | 0 | WN |
| Dec 2023 | 39 | 11 | 1 | 0 | WN |
| Nov 2023 | 36 | 5 | 0 | 0 | WN |
| Oct 2023 | 51 | 16 | 0 | 0 | WN |
| Sep 2023 | 54 | 14 | 0 | 1 | WN |
| Aug 2023 | 47 | 14 | 1 | 2 | WN |
| Jul 2023 | 60 | 30 | 0 | 0 | WN |
Cancellation Rate
0.6%
6 of 1,001 flights
Diversion Rate
0.4%
4 of 1,001 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
MDW - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →CHS - Charleston
Full on-time, delay-cause, and seasonal performance for Charleston, SC.
Destination airport →Compare the two airports
See MDW 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 MDW–CHS.
Routes with a similar on-time rate
What the Data Says About MDW to CHS
The Chicago to Charleston corridor (MDW to CHS) posts a 78.3% on-time rate on the lower edge of the average band, based on 2,992 tracked flights. Late flights run 56.9 minutes behind on average. 1 carrier cover the 745-mile route; over the last 24 months, 6 of 1,001 flights were cancelled (0.6%) and 0.4% diverted.
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 89% on-time, while Jul 2023 came in at just 50% - a 40-point swing worth factoring into travel timing.
Frequently Asked Questions
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Flight Guides
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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.