Route · MIA → SDF · 2020–2025 BTS data
Miami to Louisville
The MIA–SDF corridor (Miami, FL → Louisville, KY) runs behind the national average, served by 14 carriers across roughly 910 miles.
Data updated 2026-06-13
- 75.1%
- On-time
- -3.9 pts
- vs US avg
- 82 min
- Delay when late
- 2,637
- Flights
Cancelled
1.0%
Best Month
Dec 2023 79%
Worst Month
May 2024 52%
Distance
910 mi
Carriers
14
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 10 | 0 | 0 | AA |
| Nov 2025 | 30 | 10 | 0 | 0 | AA |
| Oct 2025 | 31 | 15 | 0 | 0 | AA |
| Sep 2025 | 32 | 8 | 0 | 0 | MQ,AA |
| Aug 2025 | 58 | 21 | 0 | 0 | AA,YX,MQ |
| Jul 2025 | 35 | 15 | 0 | 0 | AA,YX |
| Jun 2025 | 34 | 10 | 2 | 0 | AA,YX |
| May 2025 | 33 | 16 | 0 | 0 | AA,YX |
| Apr 2025 | 34 | 11 | 0 | 0 | YX,AA |
| Mar 2025 | 31 | 10 | 1 | 0 | AA |
| Jan 2025 | 31 | 3 | 1 | 0 | AA |
| Dec 2024 | 31 | 9 | 0 | 0 | AA |
| Nov 2024 | 30 | 5 | 0 | 0 | AA |
| Oct 2024 | 35 | 5 | 1 | 0 | MQ,AA |
| Sep 2024 | 50 | 8 | 0 | 0 | MQ |
| Aug 2024 | 31 | 8 | 1 | 0 | AA,MQ |
| Jul 2024 | 31 | 11 | 0 | 0 | AA |
| Jun 2024 | 34 | 19 | 1 | 0 | AA,MQ |
| May 2024 | 64 | 31 | 0 | 0 | AA,MQ,NK |
| Apr 2024 | 57 | 16 | 0 | 0 | AA,MQ |
| Mar 2024 | 62 | 18 | 2 | 0 | AA,MQ |
| Feb 2024 | 44 | 12 | 0 | 0 | AA,MQ |
| Jan 2024 | 38 | 13 | 0 | 0 | AA,MQ,YX |
| Dec 2023 | 56 | 12 | 0 | 0 | MQ,YX,AA |
Cancellation Rate
1.0%
9 of 943 flights
Diversion Rate
0.0%
0 of 943 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.
Origin airport →SDF - Louisville
Full on-time, delay-cause, and seasonal performance for Louisville, KY.
Destination airport →Compare the two airports
See MIA 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 MIA–SDF.
Routes with a similar on-time rate
What the Data Says About MIA to SDF
The Miami to Louisville corridor (MIA to SDF) posts a 75.1% on-time rate on the lower edge of the average band, based on 2,637 tracked flights. Late flights run 81.9 minutes behind on average. 14 carriers cover the 910-mile route; over the last 24 months, 9 of 943 flights were cancelled (1.0%) and 0.0% diverted.
The monthly split is wide on this route: Dec 2023 posted the strongest performance at 79% on-time, while May 2024 came in at just 52% - a 27-point swing worth factoring into travel timing.
Frequently Asked Questions
How often are flights delayed from MIA to SDF? ▼
What is the cancellation rate for MIA to SDF? ▼
How far is the flight from MIA to SDF? ▼
When is the best time to fly from MIA to SDF? ▼
Flight Guides
Tips and data-driven advice for choosing reliable routes.
Explore PlainFlights
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.