Route · SDF → ORD · 2020–2025 BTS data
Louisville to Chicago
The SDF–ORD corridor (Louisville, KY → Chicago, IL) runs ahead of the national average, served by 24 carriers across roughly 286 miles.
Data updated 2026-06-13
- 83.6%
- On-time
- +4.6 pts
- vs US avg
- 79 min
- Delay when late
- 10,855
- Flights
Cancelled
1.4%
Best Month
Sep 2025 90%
Worst Month
Feb 2025 70%
Distance
286 mi
Carriers
24
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 179 | 42 | 4 | 0 | YX,OO |
| Nov 2025 | 194 | 45 | 12 | 0 | OO,MQ,OH,YX |
| Oct 2025 | 256 | 42 | 0 | 1 | OO,YX,MQ |
| Sep 2025 | 222 | 23 | 1 | 0 | MQ,OO,YX |
| Aug 2025 | 242 | 41 | 8 | 1 | OO,YX,MQ |
| Jul 2025 | 259 | 73 | 7 | 0 | OO,UA,YX,MQ |
| Jun 2025 | 224 | 47 | 0 | 0 | OO,YX,MQ |
| May 2025 | 214 | 26 | 1 | 0 | AA,OO,UA,YX,MQ |
| Apr 2025 | 224 | 34 | 2 | 2 | MQ,OO,YX |
| Mar 2025 | 173 | 27 | 3 | 0 | YX,OO,MQ |
| Feb 2025 | 150 | 45 | 3 | 0 | OO,YX,MQ |
| Jan 2025 | 158 | 44 | 10 | 0 | YX,OO,MQ |
| Dec 2024 | 182 | 38 | 0 | 0 | MQ,OO,YX |
| Nov 2024 | 215 | 37 | 0 | 0 | OO,YX,MQ |
| Oct 2024 | 191 | 23 | 0 | 0 | MQ,YX,OO |
| Sep 2024 | 146 | 23 | 0 | 0 | YX,OO,MQ |
| Aug 2024 | 172 | 29 | 2 | 2 | MQ,YX,OO |
| Jul 2024 | 142 | 26 | 3 | 0 | MQ,OO,YX |
| Jun 2024 | 164 | 33 | 2 | 0 | MQ,OO,YX |
| May 2024 | 216 | 48 | 3 | 1 | AA,MQ,YX,OO,UA |
| Apr 2024 | 205 | 40 | 0 | 1 | MQ,OO,YX |
| Mar 2024 | 170 | 28 | 0 | 0 | MQ,YX,OO,UA |
| Feb 2024 | 143 | 21 | 1 | 0 | MQ,OO,UA,YX |
| Jan 2024 | 143 | 38 | 4 | 1 | MQ,YX,OO,UA |
Cancellation Rate
1.4%
66 of 4,584 flights
Diversion Rate
0.2%
9 of 4,584 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SDF - Louisville
Full on-time, delay-cause, and seasonal performance for Louisville, KY.
Origin airport →ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Destination airport →Compare the two airports
See SDF and ORD side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to SDF–ORD.
Routes with a similar on-time rate
What the Data Says About SDF to ORD
Bureau of Transportation Statistics records show Louisville to Chicago (SDF to ORD) running a 83.6% on-time rate over 10,855 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 79.3 minutes. The 286-mile corridor is served by 24 carriers, and over the last 24 months 1.4% of 4,584 flights were cancelled, 0.2% diverted.
The monthly split is wide on this route: Sep 2025 posted the strongest performance at 90% on-time, while Feb 2025 came in at just 70% - a 20-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from SDF to ORD? ▼
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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.