Route · ORD → SDF · 2020–2025 BTS data
Chicago to Louisville
The ORD–SDF corridor (Chicago, IL → Louisville, KY) runs ahead of the national average, served by 24 carriers across roughly 286 miles.
Data updated 2026-06-13
- 82%
- On-time
- +3 pts
- vs US avg
- 73 min
- Delay when late
- 10,886
- Flights
Cancelled
1.5%
Best Month
Feb 2024 89%
Worst Month
Dec 2025 63%
Distance
286 mi
Carriers
24
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 179 | 66 | 2 | 0 | YX,OO |
| Nov 2025 | 194 | 38 | 17 | 0 | OO,MQ,OH,YX |
| Oct 2025 | 256 | 38 | 0 | 0 | OO,YX,MQ |
| Sep 2025 | 222 | 25 | 1 | 0 | MQ,OO,YX |
| Aug 2025 | 242 | 42 | 8 | 1 | OO,YX,MQ |
| Jul 2025 | 259 | 84 | 5 | 2 | OO,UA,YX,MQ |
| Jun 2025 | 224 | 50 | 1 | 0 | OO,YX,MQ |
| May 2025 | 214 | 33 | 1 | 0 | AA,OO,UA,YX,MQ |
| Apr 2025 | 225 | 41 | 4 | 1 | MQ,OO,YX |
| Mar 2025 | 172 | 39 | 4 | 1 | YX,OO,MQ |
| Feb 2025 | 150 | 42 | 1 | 0 | OO,YX,MQ |
| Jan 2025 | 158 | 35 | 9 | 0 | YX,OO,MQ |
| Dec 2024 | 182 | 42 | 0 | 0 | MQ,OO,YX |
| Nov 2024 | 214 | 31 | 0 | 0 | OO,YX,MQ |
| Oct 2024 | 192 | 21 | 0 | 0 | MQ,YX,OO |
| Sep 2024 | 146 | 21 | 0 | 0 | YX,OO,MQ |
| Aug 2024 | 173 | 54 | 2 | 0 | MQ,YX,OO |
| Jul 2024 | 140 | 51 | 2 | 0 | MQ,OO,YX |
| Jun 2024 | 165 | 40 | 2 | 0 | MQ,OO,YX |
| May 2024 | 214 | 67 | 4 | 1 | AA,MQ,YX,OO,UA |
| Apr 2024 | 205 | 29 | 0 | 0 | MQ,OO,YX |
| Mar 2024 | 170 | 25 | 0 | 0 | MQ,YX,OO,UA |
| Feb 2024 | 142 | 15 | 0 | 0 | MQ,OO,UA,YX |
| Jan 2024 | 143 | 39 | 5 | 0 | MQ,YX,OO,UA |
Cancellation Rate
1.5%
68 of 4,581 flights
Diversion Rate
0.1%
6 of 4,581 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →SDF - Louisville
Full on-time, delay-cause, and seasonal performance for Louisville, KY.
Destination airport →Compare the two airports
See ORD and SDF side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–SDF.
Routes with a similar on-time rate
What the Data Says About ORD to SDF
Bureau of Transportation Statistics records show Chicago to Louisville (ORD to SDF) running a 82% on-time rate over 10,886 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 73.3 minutes. The 286-mile corridor is served by 24 carriers, and over the last 24 months 1.5% of 4,581 flights were cancelled, 0.1% diverted.
The monthly split is wide on this route: Feb 2024 posted the strongest performance at 89% on-time, while Dec 2025 came in at just 63% - a 26-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.