Route · SDF → MIA · 2020–2025 BTS data
Louisville to Miami
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SDF to MIA (Louisville to Miami) ranks #3466 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.1%
- On-time
- +2.1 pts
- vs US avg
- 92 min
- Delay when late
- 2,641
- Flights
- #3466 of 4927
- Corpus placement
Cancelled
1.2%
Best Month
Apr 2024 81%
Worst Month
May 2024 58%
Distance
910 mi
Carriers
14
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 5 | 0 | 0 | AA |
| Nov 2025 | 30 | 8 | 0 | 0 | AA |
| Oct 2025 | 31 | 2 | 0 | 0 | AA |
| Sep 2025 | 32 | 6 | 0 | 0 | MQ,AA |
| Aug 2025 | 58 | 22 | 1 | 0 | AA,YX,MQ |
| Jul 2025 | 35 | 7 | 0 | 0 | AA,YX |
| Jun 2025 | 35 | 3 | 2 | 0 | AA,YX |
| May 2025 | 33 | 6 | 0 | 0 | AA,YX |
| Apr 2025 | 34 | 3 | 1 | 0 | YX,AA |
| Mar 2025 | 31 | 3 | 0 | 0 | AA |
| Jan 2025 | 31 | 10 | 1 | 0 | AA |
| Dec 2024 | 31 | 7 | 1 | 0 | AA |
| Nov 2024 | 31 | 5 | 0 | 0 | MQ,AA |
| Oct 2024 | 35 | 9 | 1 | 0 | MQ,AA |
| Sep 2024 | 50 | 6 | 0 | 0 | MQ |
| Aug 2024 | 31 | 5 | 1 | 0 | AA,MQ |
| Jul 2024 | 31 | 7 | 0 | 0 | AA |
| Jun 2024 | 34 | 10 | 1 | 0 | AA,MQ |
| May 2024 | 64 | 27 | 0 | 0 | AA,MQ,NK |
| Apr 2024 | 57 | 11 | 0 | 0 | AA,MQ |
| Mar 2024 | 62 | 17 | 2 | 0 | AA,MQ |
| Feb 2024 | 44 | 17 | 0 | 0 | AA,MQ |
| Jan 2024 | 38 | 15 | 0 | 0 | AA,MQ,YX |
| Dec 2023 | 57 | 11 | 0 | 0 | MQ,YX,AA |
SDF–MIA seasonal on-time pattern
Best: April (89.0%) · weakest: May (76.2%)
Strongest calendar month
April
89.0% on-time · ~44 flights/mo
Busiest calendar month
February
~52 flights/mo avg
Weakest calendar month
May
76.2% on-time · ~50 flights/mo
Cancellation Rate
1.2%
11 of 946 flights
Diversion Rate
0.0%
0 of 946 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.
SDF on-time profileMIA - Miami
Full on-time, delay-cause, and seasonal performance for Miami, FL.
MIA on-time profileCompare the two airports
See SDF and MIA side by side on delays, cancellations, and reliability.
Compare SDF vs MIAOrigin-hub reliability standing
Mid-pack among SDF departures
From SDF, this corridor sits with 13 other 75–85% on-time routes out of 23 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 1 below 75%). Destination: Miami · fleet on-time rank #2721 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SDF–MIA.
Routes with a similar on-time rate
What the Data Says About SDF to MIA
2,641 tracked flights put the SDF to MIA pairing (Louisville to Miami) at a 81.1% on-time rate, squarely in line with the wider network. Delays that do occur run 92.0 minutes on average. Across the 910-mile route and its 14 carriers, the trailing 24 months show 1.2% cancelled and 0.0% diverted (946 flights sampled).
The monthly split is wide on this route: Apr 2024 posted the strongest performance at 81% on-time, while May 2024 came in at just 58% - a 23-point swing worth factoring into travel timing.
On the multi-year calendar, SDF–MIA peaks in April at 89.0% on-time while February carries the heaviest traffic (~52 flights per month) ; the softest month is May at 76.2%, a 12.8-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SDF to MIA rank among US routes by traffic? ▼
How often are flights delayed from SDF to MIA? ▼
What is the cancellation rate for SDF to MIA? ▼
How far is the flight from SDF to MIA? ▼
When is the best time to fly from SDF 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 SDF–MIA data
SDF–MIA is mid-pack at 81.1% on-time; month and carrier mix move more than the corridor headline.
- Compare SDF and MIA airport profiles: delay causes and top routes differ even on the same corridor. SDF airport
- If your dates flex, April (89.0% on-time) beats May (76.2%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.1% 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.