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HOU vs SDF - Airport Comparison

Select two airports to compare on-time performance, delays, cancellations, and top routes using U.S. Department of Transportation Bureau of Transportation Statistics (BTS) data (2020–2025) across all 50 states. See our methodology for how metrics are computed.

Airport A
HOU

Houston, TX

Houston, Texas

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Airport B
SDF

Louisville, KY

Louisville, Kentucky

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Key Performance Metrics

BTS on-time performance data, 2020–2025 cumulative.

Metric HOU SDF
On-Time Rate (higher is better) 79.4% 82.8%
Avg Delay (lower is better) 58.6 min 78.6 min
Delay Rate (lower is better) 20.6% 17.2%
Cancellation Rate (lower is better) 1.25% 1.24%
Total Flights 618,821 252,784
Delayed Flights 127,699 43,419
Cancelled Flights 7,742 3,127
Top Delay Cause Late Aircraft Carrier

✓ / ▲ indicates the more favorable value. Data: BTS On-Time Performance, 2020–2025.

Delay Cause Breakdown

HOU - Houston, TX

Late Aircraft 44.4%
Carrier 34.9%
NAS 15.9%
Weather 4.5%
Security 0.4%

SDF - Louisville, KY

Carrier 38.1%
Late Aircraft 33.8%
NAS 21.6%
Weather 6.3%
Security 0.2%

Top Routes

Top routes from HOU

Route Flights On-Time
DAL → HOU
Houston
23,563 80.6%
HOU → DAL
Dallas
23,517 82.5%
HOU → ATL
Atlanta
18,651 85.3%
ATL → HOU
Houston
18,589 83.6%
DEN → HOU
Houston
14,920 77.4%
HOU → DEN
Denver
14,913 81.6%

Top routes from SDF

Route Flights On-Time
SDF → ATL
Atlanta
16,538 89.5%
ATL → SDF
Louisville
16,535 86.5%
SDF → DFW
Dallas/Fort Worth
11,294 78.2%
DFW → SDF
Louisville
11,290 75.7%
CLT → SDF
Louisville
11,247 80.2%
SDF → CLT
Charlotte
11,237 82.5%

Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) Bureau of Transportation Statistics (BTS), On-Time Performance Data (2020–2025) On-time rates exclude cancelled and diverted flights. PlainFlights is not affiliated with BTS or the DOT

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This tool queries live on-time, delay, and cancellation figures for the two selected airports from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.