Route · HOU → SDF · 2020–2025 BTS data
Houston to Louisville
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), HOU to SDF (Houston to Louisville) ranks #4766 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 79%
- On-time
- +0 pts
- vs US avg
- 65 min
- Delay when late
- 649
- Flights
- #4766 of 4927
- Corpus placement
Cancelled
3.5%
Best Month
N/A
Worst Month
N/A
Distance
803 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Jul 2025 | 31 | 11 | 0 | 0 | WN |
| Jun 2025 | 30 | 11 | 0 | 0 | WN |
| May 2025 | 31 | 9 | 0 | 0 | WN |
| Apr 2025 | 30 | 6 | 0 | 0 | WN |
| Oct 2024 | 35 | 3 | 0 | 0 | WN |
| Aug 2024 | 31 | 3 | 0 | 0 | WN |
| Jul 2024 | 31 | 18 | 1 | 0 | WN |
| Jun 2024 | 30 | 10 | 0 | 1 | WN |
| May 2024 | 33 | 14 | 1 | 0 | WN |
| Apr 2024 | 30 | 6 | 0 | 0 | WN |
| Mar 2024 | 30 | 6 | 0 | 0 | WN |
| Dec 2023 | 31 | 1 | 0 | 0 | WN |
| Nov 2023 | 30 | 3 | 0 | 0 | WN |
| Oct 2023 | 31 | 7 | 0 | 0 | WN |
| Sep 2023 | 30 | 6 | 0 | 0 | WN |
| Aug 2023 | 31 | 6 | 0 | 0 | WN |
| Oct 2022 | 31 | 10 | 0 | 0 | WN |
| Aug 2020 | 31 | 0 | 1 | 0 | WN |
| Jul 2020 | 31 | 5 | 0 | 0 | WN |
| Apr 2020 | 30 | 0 | 16 | 0 | WN |
| Mar 2020 | 31 | 1 | 4 | 0 | WN |
HOU–SDF seasonal on-time pattern
Best: December (96.8%) · weakest: July (63.4%)
Strongest calendar month
December
96.8% on-time · ~31 flights/mo
Busiest calendar month
May
~32 flights/mo avg
Weakest calendar month
July
63.4% on-time · ~31 flights/mo
Cancellation Rate
3.5%
23 of 649 flights
Diversion Rate
0.2%
1 of 649 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
HOU - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
HOU on-time profileSDF - Louisville
Full on-time, delay-cause, and seasonal performance for Louisville, KY.
SDF on-time profileCompare the two airports
See HOU and SDF side by side on delays, cancellations, and reliability.
Compare HOU vs SDFOrigin-hub reliability standing
Mid-pack among HOU departures
From HOU, this corridor sits with 43 other 75–85% on-time routes out of 50 tracked departures, not the hub's reliability leaders (1 at ≥85%) and not the softest ( 6 below 75%). Destination: Louisville · fleet on-time rank #3517 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to HOU–SDF.
Routes with a similar on-time rate
What the Data Says About HOU to SDF
649 tracked flights put the HOU to SDF pairing (Houston to Louisville) at a 79% on-time rate, squarely in line with the wider network. Delays that do occur run 64.6 minutes on average. Across the 803-mile route and its 1 carrier, the trailing 24 months show 3.5% cancelled and 0.2% diverted (649 flights sampled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, HOU–SDF peaks in December at 96.8% on-time while May carries the heaviest traffic (~32 flights per month) ; the softest month is July at 63.4%, a 33.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does HOU to SDF rank among US routes by traffic? ▼
How often are flights delayed from HOU to SDF? ▼
What is the cancellation rate for HOU to SDF? ▼
How far is the flight from HOU to SDF? ▼
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 HOU–SDF data
HOU–SDF is mid-pack at 79% on-time; month and carrier mix move more than the corridor headline.
- Compare HOU and SDF airport profiles: delay causes and top routes differ even on the same corridor. HOU airport
- If your dates flex, December (96.8% on-time) beats July (63.4%) on this corridor. Seasonal chart
- 4 other routes post a similar 79% 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.